| Formulation | Catalog # | Availability | Price | |
|---|---|---|---|---|
| BSA Free | NB110-57130SS | |||
| Formulation | Catalog # | Availability | Price | |
|---|---|---|---|---|
| BSA Free | NB100-56506SS | |||
| Azide and BSA Free | NBP2-33212 | |||
| Formulation | Catalog # | Availability | Price | |
|---|---|---|---|---|
| BSA Free | NB100-56694SS | |||
| Formulation | Catalog # | Availability | Price | |
|---|---|---|---|---|
| BSA Free | NBP1-86911-25ul | |||
| Formulation | Catalog # | Availability | Price | |
|---|---|---|---|---|
| Carrier Free | AF5635-SP | |||
| Formulation | Catalog # | Availability | Price | |
|---|---|---|---|---|
| Carrier Free | MAB5635-SP | |||
| Formulation | Catalog # | Availability | Price | |
|---|---|---|---|---|
| BSA Free | NBP1-86910-25ul | |||
| Formulation | Catalog # | Availability | Price | |
|---|---|---|---|---|
| BSA Free | NBP3-21905-50ul | |||
![Immunocytochemistry/Immunofluorescence: TRF-2 Antibody [NB110-57130] - HeLa cells were fixed for 10 minutes using 10% formalin and then permeabilized for 5 minutes using 1X TBS + 0.5% Triton X-100. The cells were incubated with antibody at a 1:200 dilution overnight at 4 degrees Celsius and detected with DyLight 488 (Green) at a 1:500 dilution. Alpha tubulin was used as a co-stain at a 1:1000 dilution and detected with Dylight 550 (Red). Nuclei were detected with DAPI (Blue) at 2.0 ug/ml in 1X PBS. Cells were imaged using a 40X objective.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Immunocytochemistry-Immunofluorescence-NB110-57130-img0011.jpg "Immunocytochemistry/Immunofluorescence: TRF-2 Antibody [NB110-57130] - HeLa cells were fixed for 10 minutes using 10% formalin and then permeabilized for 5 minutes using 1X TBS + 0.5% Triton X-100. The cells were incubated with antibody at a 1:200 dilution overnight at 4 degrees Celsius and detected with DyLight 488 (Green) at a 1:500 dilution. Alpha tubulin was used as a co-stain at a 1:1000 dilution and detected with Dylight 550 (Red). Nuclei were detected with DAPI (Blue) at 2.0 ug/ml in 1X PBS. Cells were imaged using a 40X objective.")
![Simple Western: TRF-2 Antibody [NB110-57130] - Lane view shows a specific band for TRF2 in 1.0 mg/mL of HeLa lysate. This experiment was performed under reducing conditions using the 12-230 kDa separation system.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Simple-Western-NB110-57130-img0010.jpg)
![Western Blot: TRF-2 Antibody [NB110-57130] - Analysis of HeLa whole cell lysate (A), HeLa nuclear cell lysate (B), k562 cell lysate (C), HepG2 cell lysate (D), NIH/3T3 cell lysate (E), CHO cell lysate (F), PC12 cell lysate (G), and Cos7 cell lysate (H) using antibody at a concentration of 2 ug/mL.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Western-Blot-NB110-57130-img0008.jpg)
![Immunohistochemistry-Paraffin: TRF-2 Antibody [NB110-57130] - Analysis in xenografted human breast cancer tissue using DAB with hematoxylin counterstain.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Immunohistochemistry-Paraffin-NB110-57130-img0007.jpg)
![Immunohistochemistry-Paraffin: TRF-2 Antibody [NB110-57130] - Analysis of FFPE human breast cancer tissue with rabbit polyclonal TRF2 antibody at a dilution of 1:200. The staining was developed with HRP-DAB detection method and the counterstaining was performed using hematoxylin. This TRF2 antibody generated an expected nuclear signal in all the cancer cells and the stromal cells. In the tested section, only a subset of myoepithelial cells showed positivity for this protein.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Immunohistochemistry-Paraffin-NB110-57130-img0013.jpg)
![Immunocytochemistry/Immunofluorescence: TRF-2 Antibody [NB110-57130] - NIH3T3 cells were fixed in 4% paraformaldehyde for 10 minutes and permeabilized in 0.5% Triton X-100 in PBS for 5 minutes. The cells were incubated with anti-TRF-2 Antibody NB110-57130 at 2 ug/ml overnight at 4C and detected with an anti-rabbit Dylight 488 (Green) at a 1:1000 dilution for 60 minutes. Nuclei were counterstained with DAPI (Blue). Cells were imaged using a 100X objective and digitally deconvolved.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Immunocytochemistry-Immunofluorescence-NB110-57130-img0016.jpg)
![Flow Cytometry: TRF-2 Antibody [NB110-57130] - An intracellular stain was performed on HeLa cells with TRF-2 Antibody NB110-57130 (blue) and a matched isotype control NBP2-24891 (orange). Cells were fixed with 4% PFA and then permeabilized with 0.1% saponin. Cells were incubated in an antibody dilution of 1.0 ug/mL for 30 minutes at room temperature, followed by Rabbit IgG (H+L) Cross-Adsorbed Secondary Antibody, Dylight 550 (SA5-10033, Thermo Fisher).](http://images.novusbio.com/fullsize/TRF-2-Antibody-Flow-Cytometry-NB110-57130-img0017.jpg)
![Chromatin Immunoprecipitation: TRF-2 Antibody [NB110-57130] - Analysis in mouse. Titrated TRF2 antibody to determine concentration required for ChIP experiment. ChIP image submitted by a verified customer review.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Chromatin-Immunoprecipitation-NB110-57130-img0009.jpg)
![<b>Genetic Strategies Validation. </b>Immunocytochemistry/Immunofluorescence: TRF-2 Antibody [NB110-57130] - RNAi-mediated depletion of human separase (ESPL1) induces TIFs. Control scrambled siRNA- (control) and ESPL1 siRNA-treated fibroblasts stained with anti-p53-binding protein 1 (53BP1; green) and anti-TRF2 (red). It is noteworthy that in ESPL1 siRNA-treated cells, 53BP1 signals frequently overlap with TRF2 signals marking the TIFs. Scale bar, 5 um. Image collected and cropped by CiteAb from the following publication (//www.nature.com/doifinder/10.1038/ncomms10405), licensed under a CC-BY license.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Immunocytochemistry-Immunofluorescence-NB110-57130-img0015.jpg)
![Immunohistochemistry-Paraffin: TRF-2 Antibody [NB110-57130] - Analysis of FFPE human breast cancer tissue with rabbit polyclonal TRF2 antibody at 1:200 dilution. The staining was developed with HRP-DAB detection method and the counterstaining was performed using hematoxylin. This TRF2 antibody generated an expected nuclear signal in all the cancer cells and the stromal cells. In the tested section, only a subset of myoepithelial cells showed positivity for this protein.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Immunohistochemistry-Paraffin-NB110-57130-img0012.jpg)
![Flow Cytometry: TRF-2 Antibody [NB110-57130] - An intracellular stain was performed on HeLa cells with TRF-2 Antibody NB110-57130AF488 (blue) and a matched isotype control (orange). Cells were fixed with 4% PFA and then permeabilized with 0.1% saponin. Cells were incubated in an antibody dilution of 5 ug/mL for 30 minutes at room temperature. Both antibodies were conjugated to Alexa Fluor 488.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Flow-Cytometry-NB110-57130-img0014.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - Repressive chromatin induced on p21 promoter in TRF2 dependent way. (A–C) Loss of chromatin activation marks H3K4Me, H3K4Me2 in stable TRF2 expressed HT1080 cells (A); increase in LSD1 occupancy in TRF2 over-expressing HT1080 cells. (B) (Full images are shown in Supplementary Figures S6 & S7); Co-immunoprecipitation of TRF2 with LSD1 (immunoprecipitation with anti-TRF2 antibody followed by immunoblotting with anti-LSD1 or anti-TRF2 antibody) (C); (D) Reverse Co-immunoprecipitation of LSD1 with TRF2 (immunoprecipitation with anti-LSD1 antibody followed by immunoblotting with anti-TRF2 antibody); (E) & reduced occupancy of the repressor complex REST, Co-REST & LSD1 on silencing TRF2 on p21 promoter. Image collected & cropped by CiteAb from the following publication (//www.nature.com/articles/s41598-017-11177-1), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-31020241528452.jpg)
![Chromatin Immunoprecipitation: TRF-2 Antibody - BSA Free [NB110-57130] - TRF2 occupancy on G4-motif sites on gene promoters within cells.A, telomeric enrichment was tested for TRF2 ChIP samples performed in HT1080 cells. Telomeric signal was normalized to signal from ALU probe. B, TRF2 occupancy at gene promoter sites in HT1080 cells (endogenous TRF2 & TRF2-overexpressed) quantified using ChIP-qRT PCR. TRF2 ChIP/IgG (mock) enrichment was normalized to 1% input; CTCF promoter (which does not harbor a TRF2 peak) was used as negative control; error bars correspond to S.D., & statistical significance was calculated by paired t test (*, p < 0.05; **, p < 0.01). For the TRF2-overexpressed condition (in red), all p values were <0.01. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31575660), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-310202415293320.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - Repressive chromatin induced on p21 promoter in TRF2 dependent way. (A–C) Loss of chromatin activation marks H3K4Me, H3K4Me2 in stable TRF2 expressed HT1080 cells (A); increase in LSD1 occupancy in TRF2 over-expressing HT1080 cells. (B) (Full images are shown in Supplementary Figures S6 & S7); Co-immunoprecipitation of TRF2 with LSD1 (immunoprecipitation with anti-TRF2 antibody followed by immunoblotting with anti-LSD1 or anti-TRF2 antibody) (C); (D) Reverse Co-immunoprecipitation of LSD1 with TRF2 (immunoprecipitation with anti-LSD1 antibody followed by immunoblotting with anti-TRF2 antibody); (E) & reduced occupancy of the repressor complex REST, Co-REST & LSD1 on silencing TRF2 on p21 promoter. Image collected & cropped by CiteAb from the following publication (//www.nature.com/articles/s41598-017-11177-1), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-310202415363710.jpg)
![Chromatin Immunoprecipitation: TRF-2 Antibody - BSA Free [NB110-57130] - Thousands of extra-telomeric TRF2 binding sites found across the genome.A, extra-telomeric TRF2 peaks found in HT1080 cells following TRF2 ChIP-Seq: 20304 TRF2 peaks were common between two independent experiments. B, distribution of common TRF2 peaks around TSSs. Distance from the TSS is shown in kb. C, replicate consistency plot generated using irreproducible discovery rate analysis; 1956 peaks found at ≤0.01 are marked. D, distribution of 1956 TRF2 peaks with IDR 0.01 (TRF2HC peaks) around the TSS. Distance from the TSS is shown in kb. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31575660), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-310202415371955.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - TRF1HP1 alpha allele-specific protection effects upon si-TRF2-induced telomeric damage. 72 h after transfection, a TRF2 knockdown efficiency with antibody against TRF2 (anti-TRF2) & GAPDH (anti-GAPDH) as loading control. (−) si-non-targeting; (+) si-TRF2. Quantification of TIFs in b si-non-targeting (n = 32–47 nuclei per group) or c si-TRF2. Left *p = 0.0188, right *p = 0.0192, **p = 0.0042, ****p < 0.0001 (n = 31–48 nuclei per group). b, c Significance is assessed by one-way ANOVA & Dunnett’s multiple comparison test with 95% confidence level. Error bars represent s.e.m. Note the similar pattern among TRF1HP1 alpha alleles in c compared to the corresponding allele pattern in Fig. 4b Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/30181605), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-310202415284520.jpg)
![Chromatin Immunoprecipitation: TRF-2 Antibody - BSA Free [NB110-57130] - TRF2 peaks harbor G-quadruplex motifs genome-wide.A, schematic representation of a G4 motif; sequence pattern with loop/stem & PG4 motif formed by a tetrad of guanine trimers interspersed with loops that can vary in length. B & C, PG4 motifs & TRF2 peaks significantly overlap. High-confidence TRF2-binding sites (TRF2HC peaks) determined by ChIP-Seq in HT1080 cells were significantly enriched in PG4-motif sequences (B), & conversely, PG4-motif sequences were enriched within TRF2HC peaks (C). Nonoverlapping PG4 motifs were considered for analysis; for control analysis, 100 regions of identical length for each TRF2 peak were taken. *, p < 0.05; **, p < 0.01 (Fisher's exact test). Error bars, S.D. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31575660), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-31020241538415.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - Repressive chromatin induced on p21 promoter in TRF2 dependent way. (A–C) Loss of chromatin activation marks H3K4Me, H3K4Me2 in stable TRF2 expressed HT1080 cells (A); increase in LSD1 occupancy in TRF2 over-expressing HT1080 cells. (B) (Full images are shown in Supplementary Figures S6 & S7); Co-immunoprecipitation of TRF2 with LSD1 (immunoprecipitation with anti-TRF2 antibody followed by immunoblotting with anti-LSD1 or anti-TRF2 antibody) (C); (D) Reverse Co-immunoprecipitation of LSD1 with TRF2 (immunoprecipitation with anti-LSD1 antibody followed by immunoblotting with anti-TRF2 antibody); (E) & reduced occupancy of the repressor complex REST, Co-REST & LSD1 on silencing TRF2 on p21 promoter. Image collected & cropped by CiteAb from the following publication (//www.nature.com/articles/s41598-017-11177-1), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-310202415392522.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - TRF2 transcriptionally regulates p21 expression through promoter occupancy. (A) Quantitative ChIP using TRF2 antibody gives enriched binding of TRF2 on p21 promoter in HT1080 & MDA-MB-231 cells, IgG was used as isotypic antibody control; normalized with 10% input (data represented as mean ± SEM, for three replicates). (B,C) TRF2 represses p21 promoter activity. In luciferase assay, si-RNA-mediated silencing or TRF2 over expression resulted in increased (B, *p value < 0.05, Student’s t-test; data represented as mean ± SEM of three replicates) or reduction (C, *p value < 0.05, Student’s t-test; data represented as mean ± SEM of three replicates) in p21 promoter activity in HT1080 & MDA-MB-231 cells, respectively; over expression of TRF2 devoid of DNA binding [deletion of basic (delB), myb (delM) & both basic/myb (delB-delM) domains] resulted in partial or complete rescue of p21 promoter activity in HT1080 & MDA-MB-231 cells (data represented as mean ± SEM, for three replicates) (C). (D,E) HT1080 cells over expressing TRF2 show reduced p21 protein expression, bar graph shows the densitometry analysis of three different immunoblot replicates (*p value < 0.05, Student’s t-test; data represented as mean ± SEM of three replicates). (E) (Full images are shown in Supplementary Figure S5); TRF2 silencing results in increase in p21 protein, bar graph shows the densitometry analysis of three different immunoblots (*p value < 0.05, Student’s t-test; data represented as mean ± SEM of three replicates) (F); & mRNA expression in HT1080 cells (*p value < 0.05, Student’s t-test; data represented as mean ± SEM of three replicates, GAPDH used as internal control for real-time PCR). Image collected & cropped by CiteAb from the following publication (//www.nature.com/articles/s41598-017-11177-1), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-31020241624926.jpg)
![Chromatin Immunoprecipitation: TRF-2 Antibody - BSA Free [NB110-57130] - TRF2 occupancy at gene promoters is sensitive to intracellular G-quadruplex–binding ligand 360A.A, TRF2 occupancy at gene promoter sites was checked by ChIP qRT-PCR in HT1080 cells following overexpression of TRF2 in the presence or absence of 360A. Error bars, S.D. from three independent experiments; CTCF promoter was used as a negative control. B, TRF2 level was checked by Western blotting in the presence of the ligand 360A in both untransfected & TRF2 transient overexpression conditions. Overexpression was also confirmed by probing for DDK tag. GAPDH was used as loading control. C, expression of target genes was analyzed by qRT-PCR in HT1080 cells following overexpression of TRF2 in the presence or absence of 360A. GAPDH expression was used for normalization; error bars, S.D. from three independent experiments. Statistical significance was calculated by paired t test (*, p < 0.05; **, p < 0.01). Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31575660), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-3102024162491.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - A. Co-IP analysis of the interaction between DSP & TRF2 in HEK293 cells & MCF-7 cells. B. Co-IP analysis of the interaction between DSP & TRF2 in DSP-EGFP transfected HEK293 cells or DSP△NLS-EGFP transfected HEK293 cells. C. DSP pull down by telomere targeting CASID with the condition of TRF2 knockdown in HEK293 cells. Histone H3 is the loading control. D.TRF1 & TRF2 pull-down assay by telomere targeting CASID with the condition of DSP knockdown in HEK293 cells. E. Left, Dot blot of telomere DNA repeats in chromatin pull down by DSP with the condition of TRF1 or TRF2 knockdown. The dot-blot was performed at least three times & the represented one is shown. Right, the histogram shows the quantitated results of the dot blots. The triple asterisks (***) indicates a p-value less than 0.01. ns. indicates the insignificance difference. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31595153), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-310202416235527.jpg)
![Immunocytochemistry/ Immunofluorescence: TRF-2 Antibody - BSA Free [NB110-57130] - TERRA & telomere transcription in ALT cells.(a) TERRA northern blot hybridizations of RNA from the indicated cell lines (VA13: WI-38 VA13; 1.2.11: HeLa 1.2.11) pre-treated with RNaseA or left untreated. Ethidium bromide stained 18S ribosomal RNA (rRNA) is shown to control for loading. Long TERRA molecules comprised between the wells of the gels (w) & 28S rRNA are indicated. (b) TERRA CpG-island promoter methylation analysis of the indicated cell lines. Genomic DNA was digested with the methylation sensitive restriction enzyme MspI or its methylation insensitive isoschizomer HpaII. DNA was hybridized using a radioactively labelled probe detecting TERRA promoter CpG-island repeats. Nomet: fragments corresponding to unmethylated restriction products. (c) Dot blot hybridization of DNA immunoprecipitated with antibodies against phosphorylated Serines S2 & S5 of RNA polymerase II C-terminal domain. Hybridizations were performed with a telomeric probe. Quantifications are shown at the bottom. (d) Bars & error bars are averages & s.d. from three independent experiments. (e) Examples of TERRA FISH in the indicated cells. TERRA is shown in red, DAPI-stained DNA in blue. Scale bar, 9 μm. (f) IF/FISH experiments in the indicated cell lines. TERRA is in red, TRF2 in green & PML in blue. In the merge panels, arrowheads point to nuclear foci where the three factors co-localize. Scale bar, 9 μm. (g) Information surface at 0.01 μm detail level of three TERRA-containing APBs. TERRA is in red, TRF2 in green & PML in cyan. Images were generated with Three-Dimensional Structured Illumination Microscopy (3D-SIM). Scale bars, 0.4 μm. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/25330849), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-310202416235545.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - TRF2 occupancy at gene promoters is sensitive to intracellular G-quadruplex–binding ligand 360A.A, TRF2 occupancy at gene promoter sites was checked by ChIP qRT-PCR in HT1080 cells following overexpression of TRF2 in the presence or absence of 360A. Error bars, S.D. from three independent experiments; CTCF promoter was used as a negative control. B, TRF2 level was checked by Western blotting in the presence of the ligand 360A in both untransfected & TRF2 transient overexpression conditions. Overexpression was also confirmed by probing for DDK tag. GAPDH was used as loading control. C, expression of target genes was analyzed by qRT-PCR in HT1080 cells following overexpression of TRF2 in the presence or absence of 360A. GAPDH expression was used for normalization; error bars, S.D. from three independent experiments. Statistical significance was calculated by paired t test (*, p < 0.05; **, p < 0.01). Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31575660), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-31020241624924.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - A. Gene ontology analysis of proteins identified by CASID targeting telomeres. B. Western blot detection of TRF1, POT1, & DSP in the proteins pulled down by CASID with the presence of telo-sgRNA in HEK293 cells. Input represents the initial nuclear extract before the pull-down mediated by CASID. C. left, ChIP assay of telomere binding of TRF2 or DSP in MCF-7 cells & HEK293 cells. The chromatin DNA precipitated by anti-DSP & anti-TRF2 antibodies were analyzed by dot blot using the probes recognizing telomere (Telo-p) or Alu DNA repeats (Alu-p). The detection of Alu DNA repeats serves as negative control. The dot-blot was performed at least three times & the represented one is shown. Right, the histogram shows the quantitated results of the dot blots. The triple asterisks (***) indicates a p-value less than 0.01. D. Fluorescence imaging of DSP-EGFP in MCF-7 cells & U2OS cells. The EGFP signal indicates the localization of DSP-EGFP (green) & the Telo-FISH signal indicates the localization of telomeres (red). The overlapping between DSP-EGFP & Telo-FISH is in yellow as revealed in the enlarged nuclear area. The dCAS9-EGFP construct without telo-sgRNA was used for U2OS transfection & the imaging of EGFP serves as negative control. E. DSP localization in interphase & pro-metaphase nucleus. DSP-EGFP indicates the DSP locations & DAPI indicates the nucleus. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31595153), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-31020241624912.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - TRF2 interacts with lamin A/C.(a) Pull down of endogenous TRF2 in IMR90s. The top panel shows a blot probed for endogenous lamin A/C, & the bottom panel shows a blot with the same samples probed for TRF2. (b) Pull down of endogenously expressed lamin A/C in IMR90s. The top panel shows a blot probed for endogenous TRF2, & the bottom panel shows a blot with the same samples probed for endogenous lamin A/C. (c) Pull down of endogenous lamin A/C in IMR90s exogenously expressing GFP, GFP-TRF2, GFP-TRF delta B delta M or GFP-TRF1. The top panel shows a blot probed for GFP, & the bottom panel shows the same blot probed for lamin A/C. (d) Pull down of endogenous TRF2 in IMR90s exogenously expressing GFP, GFP-LMNA or progerin (GFP-LMNA delta 50). The top panel shows a blot probed for GFP, & the bottom panel shows the same blot probed for TRF2. Asterisks denote IgG bands. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/25399868), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-310202416235540.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - Widespread dysregulation of shelterin protein expression in bortezomib-treated HEL & BGC-823 cellsA. & B. mRNA levels of shelterin factors TRF1, TRF2, TPP1, POT1, RAP1 & TIN2 in bortezomib-treated cells. Cells were treated with bortezomib for 24 hours & qPCR was used for quantitative assays. The levels of each target mRNA in bortezomib-treated cells were expressed as percentages of those in untreated cells. (A) HEL cells & (B) BGC-823 cells. C. & D. Immunoblotting assessment of TRF1, TRF2 & POT1 protein expression in bortezomib-treated cells. Same sets of cells above were analyzed for TRF1, TRF2 & POT1 protein levels & shown was representative of three independent experiments. (C) HEL cells & (D) BGC-823 cells. * & **: P < 0.05 & 0.01, respectively. BTZ, bortezomib. Image collected & cropped by CiteAb from the following publication (//www.oncotarget.com/lookup/doi/10.18632/oncotarget.5752), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-31020241623553.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - A. Co-IP analysis of the interaction between DSP & TRF2 in HEK293 cells & MCF-7 cells. B. Co-IP analysis of the interaction between DSP & TRF2 in DSP-EGFP transfected HEK293 cells or DSP△NLS-EGFP transfected HEK293 cells. C. DSP pull down by telomere targeting CASID with the condition of TRF2 knockdown in HEK293 cells. Histone H3 is the loading control. D.TRF1 & TRF2 pull-down assay by telomere targeting CASID with the condition of DSP knockdown in HEK293 cells. E. Left, Dot blot of telomere DNA repeats in chromatin pull down by DSP with the condition of TRF1 or TRF2 knockdown. The dot-blot was performed at least three times & the represented one is shown. Right, the histogram shows the quantitated results of the dot blots. The triple asterisks (***) indicates a p-value less than 0.01. ns. indicates the insignificance difference. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31595153), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-31020241624919.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - Telomere deprotection contributes to replication stress lethality. a Western blots of whole cell extracts from HT1080 6TG cells stably transduced with control, TRF2 shRNA (TRF sh-F) or TRF2 over expression (TRF2OE) vectors. b Representative images of cyto-centrifuged chromosome spreads stained with DAPI (blue), gamma -H2AX IF (red) & telomere PNA (green) from control, TRF sh-F or TRF2OE HT1080 6TG cells treated with DMSO or APH. Scale bar represents 10 µm. c, d Quantitation of mitotic telomere DDR foci from Control sh & TRF2 sh-F cells (c) or vector & TRF2OE cells (d) ± DMSO or APH (three biological replicates scoring n = 50 mitotic spreads per replicate compiled in a Tukey box plot, Mann–Whitney test). e Difference in the mean number of mitotic telomeric gamma -H2AX foci between HT1080 6TG TRF2 sh-F or TRF2OE cells & their appropriate vector control. These are a different representation of the same data shown in (c, d) (mean ± s.e.m., n = 3 three biological replications, Student’s t-test). f Mitotic duration to cell death in APH treated control, TRF2 sh-F & or TRF2OE cells (three biological replicates scoring ≥267 mitotic death events per condition are shown in a dot plot, mean ± s.e.m., Mann–Whitney test). g Mitotic outcome of control, TRF2 sh-F & TRF2OE cells treated with APH or DMSO (mean ± s.e.m., n = 3 biological replicates of at least 267 mitoses per condition, Fisher’s Exact Test). For all panels, *p < 0.05, **p < 0.01. Source data are provided as a Source Data file Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31530811), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-310202416235510.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - A. Co-IP analysis of the interaction between DSP & TRF2 in HEK293 cells & MCF-7 cells. B. Co-IP analysis of the interaction between DSP & TRF2 in DSP-EGFP transfected HEK293 cells or DSP△NLS-EGFP transfected HEK293 cells. C. DSP pull down by telomere targeting CASID with the condition of TRF2 knockdown in HEK293 cells. Histone H3 is the loading control. D.TRF1 & TRF2 pull-down assay by telomere targeting CASID with the condition of DSP knockdown in HEK293 cells. E. Left, Dot blot of telomere DNA repeats in chromatin pull down by DSP with the condition of TRF1 or TRF2 knockdown. The dot-blot was performed at least three times & the represented one is shown. Right, the histogram shows the quantitated results of the dot blots. The triple asterisks (***) indicates a p-value less than 0.01. ns. indicates the insignificance difference. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31595153), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-31020241624913.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - A. TRF2 or DSP1 pull down by telomere targeting CASID with the condition of MST-312 treatment (left) or hTERT knockdown (right) in MDA-MB-231cells. B. Southern blot of telomere DNA from MDA-MB-231cells treated with MST-312 or with hTERT knockdown. C. Top, Dot blot of telomere DNA repeats from the chromatin pull down by DSP from the cells treated by MST-312 (left) or hTERT knockdown (right). Alu DNA repeats serve as negative control. Bottom, the histogram shows the quantitated results of the dot blots. The triple asterisks (***) indicates a p-value less than 0.01. D. Fluorescence image of DSP-EGFP transfected MDA-MB-231 cells with the conditions of MST-312 treatment or hTERT knockdown. E. Pull down assay of DSP by CASID targeting telomere in WI38 cells with or without ectopically expression of hTERT gene. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31595153), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-31020241624911.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - Attenuation of bortezomib-induced shelterin protein dysregulation by hTERT over-expressionA. & B. Cells expressing ectopic hTERT were treated with bortezomib for 24 hours & mRNA levels of shelterin proteins then analyzed using qPCR. The levels of each target mRNA in bortezomib-treated cells were expressed as percentages of those in untreated cells. (A) HEL-hTERT cells & (B) BGC-823-hTERT cells. C. & D. Immunoblotting assessment of TRF1, TRF2 & POT1 protein expression in bortezomib-treated cells. Same sets of cells above were analyzed for TRF1, TRF2 & POT1 protein levels & shown was representative of three independent experiments. (C) HEL-hTERT cells & (D) BGC-823-hTERT cells.* & **: P < 0.05 & 0.01, respectively. BTZ, bortezomib. Image collected & cropped by CiteAb from the following publication (//www.oncotarget.com/lookup/doi/10.18632/oncotarget.5752), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-310202416235549.jpg)
![Immunocytochemistry/ Immunofluorescence: TRF-2 Antibody - BSA Free [NB110-57130] - RNaseH1 depletion leads to RPA activation at ALT telomeres.(a) HeLa & U2OS cells were transfected with the indicated siRNAs & 48 & 72 h later protein extracts were prepared. Western blot analysis was performed using antibodies against RNaseH1, RPA32 phosphorylated at Serine 33 (pSer33), total RPA32 & KAP1 (loading control). The asterisk indicates a cross-reacting band. Cells treated for 6 h with 5 mM hydroxyurea (HU) were used as controls for pSer33 activation. (b) SiRNA transfected cells were subjected to indirect immunofluorescence using antibodies against TRF2 (to visualize telomeres; red) & pSer33 (green). DNA was counterstained with DAPI (blue). Arrows point to examples of pSer33 foci co-localizing with TRF2 (TIFs). Scale bar, 9 μm. Cells treated for 6 h with 5 mM HU were used as controls for pSer33 activation. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/25330849), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-310202416235532.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - TRF2 interacts with lamin A/C.(a) Pull down of endogenous TRF2 in IMR90s. The top panel shows a blot probed for endogenous lamin A/C, & the bottom panel shows a blot with the same samples probed for TRF2. (b) Pull down of endogenously expressed lamin A/C in IMR90s. The top panel shows a blot probed for endogenous TRF2, & the bottom panel shows a blot with the same samples probed for endogenous lamin A/C. (c) Pull down of endogenous lamin A/C in IMR90s exogenously expressing GFP, GFP-TRF2, GFP-TRF delta B delta M or GFP-TRF1. The top panel shows a blot probed for GFP, & the bottom panel shows the same blot probed for lamin A/C. (d) Pull down of endogenous TRF2 in IMR90s exogenously expressing GFP, GFP-LMNA or progerin (GFP-LMNA delta 50). The top panel shows a blot probed for GFP, & the bottom panel shows the same blot probed for TRF2. Asterisks denote IgG bands. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/25399868), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-31020241624921.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - Widespread dysregulation of shelterin protein expression in bortezomib-treated HEL & BGC-823 cellsA. & B. mRNA levels of shelterin factors TRF1, TRF2, TPP1, POT1, RAP1 & TIN2 in bortezomib-treated cells. Cells were treated with bortezomib for 24 hours & qPCR was used for quantitative assays. The levels of each target mRNA in bortezomib-treated cells were expressed as percentages of those in untreated cells. (A) HEL cells & (B) BGC-823 cells. C. & D. Immunoblotting assessment of TRF1, TRF2 & POT1 protein expression in bortezomib-treated cells. Same sets of cells above were analyzed for TRF1, TRF2 & POT1 protein levels & shown was representative of three independent experiments. (C) HEL cells & (D) BGC-823 cells. * & **: P < 0.05 & 0.01, respectively. BTZ, bortezomib. Image collected & cropped by CiteAb from the following publication (//www.oncotarget.com/lookup/doi/10.18632/oncotarget.5752), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-310202416235531.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - TRF2 interacts with lamin A/C.(a) Pull down of endogenous TRF2 in IMR90s. The top panel shows a blot probed for endogenous lamin A/C, & the bottom panel shows a blot with the same samples probed for TRF2. (b) Pull down of endogenously expressed lamin A/C in IMR90s. The top panel shows a blot probed for endogenous TRF2, & the bottom panel shows a blot with the same samples probed for endogenous lamin A/C. (c) Pull down of endogenous lamin A/C in IMR90s exogenously expressing GFP, GFP-TRF2, GFP-TRF delta B delta M or GFP-TRF1. The top panel shows a blot probed for GFP, & the bottom panel shows the same blot probed for lamin A/C. (d) Pull down of endogenous TRF2 in IMR90s exogenously expressing GFP, GFP-LMNA or progerin (GFP-LMNA delta 50). The top panel shows a blot probed for GFP, & the bottom panel shows the same blot probed for TRF2. Asterisks denote IgG bands. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/25399868), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-3102024162490.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - TRF2 transcriptionally regulates p21 expression through promoter occupancy. (A) Quantitative ChIP using TRF2 antibody gives enriched binding of TRF2 on p21 promoter in HT1080 & MDA-MB-231 cells, IgG was used as isotypic antibody control; normalized with 10% input (data represented as mean ± SEM, for three replicates). (B,C) TRF2 represses p21 promoter activity. In luciferase assay, si-RNA-mediated silencing or TRF2 over expression resulted in increased (B, *p value < 0.05, Student’s t-test; data represented as mean ± SEM of three replicates) or reduction (C, *p value < 0.05, Student’s t-test; data represented as mean ± SEM of three replicates) in p21 promoter activity in HT1080 & MDA-MB-231 cells, respectively; over expression of TRF2 devoid of DNA binding [deletion of basic (delB), myb (delM) & both basic/myb (delB-delM) domains] resulted in partial or complete rescue of p21 promoter activity in HT1080 & MDA-MB-231 cells (data represented as mean ± SEM, for three replicates) (C). (D,E) HT1080 cells over expressing TRF2 show reduced p21 protein expression, bar graph shows the densitometry analysis of three different immunoblot replicates (*p value < 0.05, Student’s t-test; data represented as mean ± SEM of three replicates). (E) (Full images are shown in Supplementary Figure S5); TRF2 silencing results in increase in p21 protein, bar graph shows the densitometry analysis of three different immunoblots (*p value < 0.05, Student’s t-test; data represented as mean ± SEM of three replicates) (F); & mRNA expression in HT1080 cells (*p value < 0.05, Student’s t-test; data represented as mean ± SEM of three replicates, GAPDH used as internal control for real-time PCR). Image collected & cropped by CiteAb from the following publication (//www.nature.com/articles/s41598-017-11177-1), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-310202416235546.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - TRF2 transcriptionally regulates p21 expression through promoter occupancy. (A) Quantitative ChIP using TRF2 antibody gives enriched binding of TRF2 on p21 promoter in HT1080 & MDA-MB-231 cells, IgG was used as isotypic antibody control; normalized with 10% input (data represented as mean ± SEM, for three replicates). (B,C) TRF2 represses p21 promoter activity. In luciferase assay, si-RNA-mediated silencing or TRF2 over expression resulted in increased (B, *p value < 0.05, Student’s t-test; data represented as mean ± SEM of three replicates) or reduction (C, *p value < 0.05, Student’s t-test; data represented as mean ± SEM of three replicates) in p21 promoter activity in HT1080 & MDA-MB-231 cells, respectively; over expression of TRF2 devoid of DNA binding [deletion of basic (delB), myb (delM) & both basic/myb (delB-delM) domains] resulted in partial or complete rescue of p21 promoter activity in HT1080 & MDA-MB-231 cells (data represented as mean ± SEM, for three replicates) (C). (D,E) HT1080 cells over expressing TRF2 show reduced p21 protein expression, bar graph shows the densitometry analysis of three different immunoblot replicates (*p value < 0.05, Student’s t-test; data represented as mean ± SEM of three replicates). (E) (Full images are shown in Supplementary Figure S5); TRF2 silencing results in increase in p21 protein, bar graph shows the densitometry analysis of three different immunoblots (*p value < 0.05, Student’s t-test; data represented as mean ± SEM of three replicates) (F); & mRNA expression in HT1080 cells (*p value < 0.05, Student’s t-test; data represented as mean ± SEM of three replicates, GAPDH used as internal control for real-time PCR). Image collected & cropped by CiteAb from the following publication (//www.nature.com/articles/s41598-017-11177-1), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-31020241624927.jpg)
![Western Blot: TRF-2 Antibody - BSA Free [NB110-57130] - Attenuation of bortezomib-induced shelterin protein dysregulation by hTERT over-expressionA. & B. Cells expressing ectopic hTERT were treated with bortezomib for 24 hours & mRNA levels of shelterin proteins then analyzed using qPCR. The levels of each target mRNA in bortezomib-treated cells were expressed as percentages of those in untreated cells. (A) HEL-hTERT cells & (B) BGC-823-hTERT cells. C. & D. Immunoblotting assessment of TRF1, TRF2 & POT1 protein expression in bortezomib-treated cells. Same sets of cells above were analyzed for TRF1, TRF2 & POT1 protein levels & shown was representative of three independent experiments. (C) HEL-hTERT cells & (D) BGC-823-hTERT cells.* & **: P < 0.05 & 0.01, respectively. BTZ, bortezomib. Image collected & cropped by CiteAb from the following publication (//www.oncotarget.com/lookup/doi/10.18632/oncotarget.5752), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb110-57130_rabbit-polyclonal-trf-2-antibody-310202416235529.jpg)
![Simple Western: TRF-2 Antibody (4A794.15) [NB100-56506] - Image shows a specific band for TRF2 in 1.0 mg/mL of HeLa lysate. This experiment was performed under reducing conditions using the 12-230 kDa separation system. Non-specific interaction with the 230 kDa Simple Western standard may be seen with this antibody.](http://images.novusbio.com/fullsize/TRF-2-Antibody-4A794-15-Simple-Western-NB100-56506-img0010.jpg "Simple Western: TRF-2 Antibody (4A794.15) [NB100-56506] - Image shows a specific band for TRF2 in 1.0 mg/mL of HeLa lysate. This experiment was performed under reducing conditions using the 12-230 kDa separation system. Non-specific interaction with the 230 kDa Simple Western standard may be seen with this antibody.")
![Western Blot: TRF-2 Antibody (4A794.15) [NB100-56506] - Analysis in human Jurkat cell lysate at 2 ug/mL. Goat anti-mouse Ig HRP secondary antibody and PicoTect ECL substrate solution were used.](http://images.novusbio.com/fullsize/TRF-2-Antibody-4A794-15-Western-Blot-NB100-56506-img0008.jpg)
![Immunohistochemistry-Paraffin: TRF-2 Antibody (4A794.15) [NB100-56506] - Transitional cell carcinoma, urinary bladder, stained with TRF2 antibody (4 ug/mL), peroxidase-conjugate and DAB chromogen. Note specific nuclear staining. Tumor/normal adjacent tissue array slide was used for this test. Staining of formalin-fixed tissues is enhanced by boiling tissue sections in 10 mM sodium citrate buffer, pH 6.0 for 10-20 min followed by cooling at RT for 20 min.](http://images.novusbio.com/fullsize/TRF-2-Antibody-4A794-15-Immunohistochemistry-Paraffin-NB100-56506-img0012.jpg)
![Immunocytochemistry/Immunofluorescence: TRF-2 Antibody (4A794.15) [NB100-56506] - Localization of candidate RNAs at telomeres. Localization of SNORD17 at telomeres in human U-2 OS cells. Cells were fixed and sequentially incubated with Abs against TRF-2 and AlexaFluor 488-conjugated anti-mouse IgG. Subsequently, the cells were hybridized with the RNA probes and subjected to fluorescence microscopy. Three different cells are shown. Image collected and cropped by CiteAb from the following publication (//dx.plos.org/10.1371/journal.pone.0123387), licensed under a CC-BY license.](http://images.novusbio.com/fullsize/TRF-2-Antibody-4A794-15-Immunocytochemistry-Immunofluorescence-NB100-56506-img0018.jpg)
![Flow Cytometry: TRF-2 Antibody (4A794.15) [NB100-56506] - Intracellular flow cytometric analysis of TRF2 in 10^6 human Jurkat cells using 0.1 ug of NB100-56506. The shaded histogram represents cells alone, blue represents isotype control and red represents NB100-56506, anti-TRF2.](http://images.novusbio.com/fullsize/TRF-2-Antibody-4A794-15-Flow-Cytometry-NB100-56506-img0001.jpg)
![Western Blot: TRF-2 Antibody (4A794.15) [NB100-56506] - Total protein from mouse 3T3 cells was separated on a 12% gel by SDS-PAGE, transferred to PVDF membrane and blocked in 5% non-fat milk in TBST. The membrane was probed with 2.0 ug/mL anti-TRF2 in 1% non-fat milk in TBST and detected with an anti-mouse HRP secondary antibody using chemiluminescence.](http://images.novusbio.com/fullsize/TRF-2-Antibody-4A794-15-Western-Blot-NB100-56506-img0016.jpg)
![Immunocytochemistry/Immunofluorescence: TRF-2 Antibody (4A794.15) [NB100-56506] - Localization of candidate RNAs at telomeres. Localization of NEAT1 at telomeres in human U-2 OS cells. Cells were fixed and sequentially incubated with Abs against TRF-2 and AlexaFluor 488-conjugated anti-mouse IgG. Subsequently, the cells were hybridized with the RNA probes and subjected to fluorescence microscopy. Three different cells are shown. Image collected and cropped by CiteAb from the following publication (//dx.plos.org/10.1371/journal.pone.0123387), licensed under a CC-BY license.](http://images.novusbio.com/fullsize/TRF-2-Antibody-4A794-15-Immunocytochemistry-Immunofluorescence-NB100-56506-img0019.jpg)
![Flow Cytometry: TRF-2 Antibody (4A794.15) [NB100-56506] - An intracellular stain was performed on A431 cells with TRF2 Antibody [4A794.15] NB100-56506 (blue) and a matched isotype control (orange). Cells were fixed with 4% PFA and then permeabilized with 0.1% saponin. Cells were incubated in an antibody dilution of 1.0 ug/mL for 30 minutes at room temperature, followed by Mouse IgG (H+L) Cross-Adsorbed Secondary Antibody, Dylight 550 (35503, Thermo Fisher).](http://images.novusbio.com/fullsize/TRF-2-Antibody-4A794-15-Flow-Cytometry-NB100-56506-img0020.jpg)
![Immunocytochemistry/Immunofluorescence: TRF-2 Antibody (4A794.15) [NB100-56506] - Staining of TRF2-bound telomeres in human HeLa cells (Courtesy of Fotiadou, et al, 2004).](http://images.novusbio.com/fullsize/TRF-2-Antibody-4A794-15-Immunocytochemistry-Immunofluorescence-NB100-56506-img0005.jpg)
![Immunocytochemistry/Immunofluorescence: TRF-2 Antibody (4A794.15) [NB100-56506] - HeLa cells were fixed for 10 minutes using 10% formalin and then permeabilized for 5 minutes using 1X PBS + 0.5% Triton-X100. The cells were incubated with anti-TRF-2 (4A794.15) conjugated to FITC [NB100-56506F] at 5 ug/mL for 1 hour at room temperature. Nuclei were counterstained with DAPI (Blue). Cells were imaged using a 40X objective.](http://images.novusbio.com/fullsize/TRF-2-Antibody-4A794-15-Immunocytochemistry-Immunofluorescence-NB100-56506-img0017.jpg)
![Immunocytochemistry/ Immunofluorescence: TRF-2 Antibody (4A794.15) - BSA Free [NB100-56506] - ZBTB48‐dependent loss of MTFP1 phenocopies MTFP1 depletionFluorescence microscopy analysis of the structure & localization of the mitochondrial network in HeLa WT & ZBTB48 KO clones. Mitochondria are marked with the MitoTracker dye (red), & nuclei are counterstained with DAPI (blue). Scale bars represent 20 μm.The same analysis as in (A) for U2OS WT & ZBTB48 KO clones. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/28500257), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb100-56506_mouse-monoclonal-trf-2-antibody-4a794-15-31020241534325.jpg)
![Western Blot: TRF-2 Antibody (4A794.15) - BSA Free [NB100-56506] - TRF2 delta B delta M expression induces chromosome end-to-end fusions in all inducible cell lines(A) Immunoblots of MCF-10A, TO, SH-TO & SV-TO cell lines with & without DOX & HEK 293T. After 96 h of DOX treatment, the inducible cell lines expressed the truncated TRF2 delta B delta M protein (50 kDa); in contrast, uninduced cell lines, MCF-10A parental cell line & HEK 293T cells displayed only the endogen TRF2 protein (66 kDa). Lamin B1 was used as loading control. (B) After sustained expression of TRF2 delta B delta M for 96 h there was a significant increase in aberrant metaphases only in TO cells when compared to uninduced matched cells. (C) Nevertheless, the efficacy of the inducible system was validated by the statistical increase of cells with end-to-end fusions in all inducible cell lines. (D) Moreover, a high incidence of fusions per cell was found in all modified cell lines after sustained TRF2 depletion. Data was presented as mean + SEM. (E) Example of TO, SH-TO & SV-TO karyotypes after 96 h of TRF2 delta B delta M expression. Open arrows indicate clonal aberrations in the parental MCF-10A cell line. Insets in the karyotype show rearranged chromosomes stained with centromeric (green) & telomeric (red) PNA probes. Note the presence of telomere FISH signals at the fusion point of chromatid- or chromosome-type end-to-end fusions. Image collected & cropped by CiteAb from the following publication (//www.oncotarget.com/lookup/doi/10.18632/oncotarget.25502), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb100-56506_mouse-monoclonal-trf-2-antibody-4a794-15-31020241682158.jpg)
![Immunocytochemistry/ Immunofluorescence: TRF-2 Antibody (4A794.15) - BSA Free [NB100-56506] - ZBTB48 ZnF11 necessary to bind to telomeres. Sequence‐specific DNA pull‐downs w/ either telomeric (TTAGGG)/a control sequence (GTGAGT) for FLAG‐ZBTB48 WT, domain deletion constructs for different zinc finger & combinations of deletion constructs w/ ZnF10/11 point mutants. Domain structures indicated - right.Sequence‐specific DNA pull‐downs for FLAG‐ZBTB48 WT & ZnF11 point mutant for telomeric repeat sequences of different phyla (green) & their respective scrambled controls (blue).Protein expression analysis of ZBTB48 by WB for cell lines used. GAPDH serves as a loading control.IF stainings for exogenous FLAG‐ZBTB48 WT & point mutants for ZnF10 & ZnF11 in U2OS cells. The same analysis as in Fig 1E performed & average co‐localization frequencies shown (n = 24–37 cells).Co‐localization analysis of endogenous ZBTB48/exogenous FLAG‐ZBTB48 WT w/ TRF2 in HeLa cells by IF (IF) staining. Image illustrating co‐localization between ZBTB48/FLAG‐ZBTB48 WT (green) & TRF2 (red) as a marker for telomeres is shown w/ DAPI (blue) used as nuclear counterstain. Co‐localization events indicated by white arrows. Quantification of frequency of co‐localization events (right) done after 3D reconstruction of acquired z‐stacks (n = 30 cells).Co‐localization analysis of endogenous ZBTB48/exogenous FLAG‐ZBTB48 WT w/ TRF2 in HeLa 1.3 cells by IF (IF) staining analogous to (E) (n = 30 cells).Co‐localization analysis of endogenous ZBTB48/exogenous FLAG‐ZBTB48 WT w/ TRF2 in HT1080 super‐telomerase cells by IF (IF) staining analogous to (E) (n = 30 cells).Data information: (D–G) Scale bars = 5 μm. Error bars indicate standard deviations, & P‐values based on Student's t‐test.Source data available online for this figure. Image collected & cropped by CiteAb from following publication (//pubmed.ncbi.nlm.nih.gov/28500257), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb100-56506_mouse-monoclonal-trf-2-antibody-4a794-15-31020241553721.jpg)
![Immunoprecipitation: TRF-2 Antibody [NB100-56694] - Analysis of TRF-2 in HL60 cells. Lane 1. IP (mouse anti-TRF2). Lane 2. IP with control mouse IgG. Lane 3 IP with goat anti-TRF2. Lane 4. IP with pre-immune goat Ig. Lanes 1-4. WB. TRF2 is detected as a ~ 66 kD protein.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Immunoprecipitation-NB100-56694-img0006.jpg "Immunoprecipitation: TRF-2 Antibody [NB100-56694] - Analysis of TRF-2 in HL60 cells. Lane 1. IP (mouse anti-TRF2). Lane 2. IP with control mouse IgG. Lane 3 IP with goat anti-TRF2. Lane 4. IP with pre-immune goat Ig. Lanes 1-4. WB. TRF2 is detected as a ~ 66 kD protein.")
![Immunohistochemistry-Paraffin: TRF-2 Antibody [NB100-56694] - Analysis of Human Tonsil using TRF-2 antibody.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Immunohistochemistry-Paraffin-NB100-56694-img0005.jpg)
![<b>Genetic Strategies Validation. </b>Western Blot: TRF-2 Antibody [NB100-56694] - U2OS cells were transduced with a lentiviral vector coding for a Dox inducible control shRNA (shCtrl) or a shRNA against TRF-2 (shTRF2) and selected with puromycin +/- Dox for a week. A) Western blot analysis of TRF-2 expression one week post selection. Membranes were also probed with anti-tubulin antibodies to show the input material loaded. Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/32320442/) licensed under a CC-BY license.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Knockdown-Validated-NB100-56694-img0007.jpg)
![<b>Genetic Strategies Validation. </b>Immunocytochemistry/ Immunofluorescence: TRF-2 Antibody [NB100-56694] - U2OS cells were transduced with a lentiviral vector coding for a Dox inducible control shRNA (shCtrl) or a shRNA against TRF-2 (shTRF2) and selected with puromycin +/- Dox for a week. One week post selection, +Dox cells were infected with HHV-6A for 48h and processed for IFA using anti-TRF-2 (green) and anti-IE2 (red). Cells with IE2 in punctate form and cells with large patchy IE2, likely to represent VRC, are shown. Nuclei are outlined by dashed lines. Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/32320442/) licensed under a CC-BY license.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Knockdown-Validated-NB100-56694-img0008.jpg)
![Western Blot: TRF-2 Antibody [NB100-56694] - TRF2 knockdown affect HHV-6A/B chromosomal integration.A) U2OS cells were transduced with lentiviral vectors expressing a scrambles shRNA (shCtrl) or a shTRF2. After a week of selection, cells were monitored for TRF2 expression by western blot. B) After a week of selection, shCtrl & shTRF2 treated cells were infected with HHV-6A or HHV-6B. After 30 days, DNA was isolated & the relative frequency of integration, relative to shCtrl set at 100%, estimated by ddPCR. *p<0.05. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/32320442), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb100-56694_goat-polyclonal-trf-2-antibody-310202415345328.jpg)
![Immunocytochemistry/ Immunofluorescence: TRF-2 Antibody [NB100-56694] - TRF2 expression in HHV-6A-infected U2OS cells.U2OS cells were infected with HHV-6A & analyzed for TRF2 & IE2 expression at 24h, 48h & 72h post-infection by dual color immunofluorescence. A) Representative immunofluorescence of TRF2 & IE2 expression in bystander & IE2 expressing cells at 24, 48h & 72h post infection. B) Mean relative TRF2 expression ± SD in uninfected (blue), IE2- (green-uninfected bystander) or IE2+ (red-infected) cells at 24h, 48h & 72h post infection. Each symbol represents the relative TRF2 expression from a single nucleus. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/32320442), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb100-56694_goat-polyclonal-trf-2-antibody-310202415304273.jpg)
![Immunocytochemistry/ Immunofluorescence: TRF-2 Antibody [NB100-56694] - Binding of TRF2 to viral DNA during HHV-6A/B infection.A) Schematic representation of the HHV-6A/B genome. The DR6 probe used for hybridization is shown in red. Uninfected & HHV-6A-infected HSB-2 cells (B-D) or uninfected & HHV-6B-infectd Molt-3 cells (E-F) were analyzed for TRF2 binding to viral DNA using ChIP. The input was hybridized with Alu probe to assess quantity of starting material. Anti-IgG (negative control), anti-PolII (positive control) or TRF2 antibodies were used for immunoprecipitation. B) QPCR detection of GAPDH DNA following ChIP. Results are expressed as fold increase over control IgG. C & E) Eluted DNA was hybridized with 32P-labeled Alu, telomeric (TTAGGG)3 or HHV-6A (DR6) probes. After hybridization the membranes were washed & exposed to X-ray films. D & F) Densitometric analysis of relative binding of TRF2 to telomeric & viral DNA. Results of one experiment representative of three are presented & are expressed as signal after normalization to input. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/32320442), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb100-56694_goat-polyclonal-trf-2-antibody-3102024155376.jpg)
![Immunocytochemistry/ Immunofluorescence: TRF-2 Antibody [NB100-56694] - TRF2 is required for IE2 localization with telomeres.U2OS cells were transduced with a lentiviral vector coding for a Dox inducible control shRNA (shCtrl) or a shRNA against TRF2 (shTRF2) & selected with puromycin +/- Dox for a week. A) Western blot analysis of TRF2 expression one week post selection. Membranes were also probed with anti-tubulin antibodies to show the input material loaded. B) One week post selection, +Dox cells were infected with HHV-6A for 48h & processed for IFA using anti-TRF2 (green) & anti-IE2 (red). Cells with IE2 in punctate form & cells with large patchy IE2, likely to represent VRC, are shown. Nuclei are outlined by dashed lines. C) The percentage of HHV-6A infected cells (from B) was estimated after counting a minimum of 700 cells & scoring the IE2+ ones. Results are expressed as mean %IE2+ cells ± SD. D) Mean percentage ± SD of IE2 localizing with telomeres in the presence (shCtrl +Dox) & absence (shTRF2 +Dox) of TRF2. Each dot represents the % of IE2 foci localizing with telomeres in one nucleus. ****p<0.0001. E) IF-FISH confocal images of shCtrl (+Dox) & shTRF2 (+Dox) cells analyzed for TRF2 (green), IE2 (red) & telomeres (cyan). Nuclei are outlined by dashed circles. Examples of IE2 localizing with telomeres (top row) or not found with telomeres (bottom row) are highlighted by the dashed polygons. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/32320442), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb100-56694_goat-polyclonal-trf-2-antibody-31020241612657.jpg)
![Immunocytochemistry/ Immunofluorescence: TRF-2 Antibody [NB100-56694] - Binding of TRF2 to viral DNA during HHV-6A/B infection.A) Schematic representation of the HHV-6A/B genome. The DR6 probe used for hybridization is shown in red. Uninfected & HHV-6A-infected HSB-2 cells (B-D) or uninfected & HHV-6B-infectd Molt-3 cells (E-F) were analyzed for TRF2 binding to viral DNA using ChIP. The input was hybridized with Alu probe to assess quantity of starting material. Anti-IgG (negative control), anti-PolII (positive control) or TRF2 antibodies were used for immunoprecipitation. B) QPCR detection of GAPDH DNA following ChIP. Results are expressed as fold increase over control IgG. C & E) Eluted DNA was hybridized with 32P-labeled Alu, telomeric (TTAGGG)3 or HHV-6A (DR6) probes. After hybridization the membranes were washed & exposed to X-ray films. D & F) Densitometric analysis of relative binding of TRF2 to telomeric & viral DNA. Results of one experiment representative of three are presented & are expressed as signal after normalization to input. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/32320442), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb100-56694_goat-polyclonal-trf-2-antibody-310202415523926.jpg)
![Immunocytochemistry/ Immunofluorescence: TRF-2 Antibody [NB100-56694] - A) A stick diagram of the IE2 protein with various domains identified is presented. B) Colocalization of HHV-6A IE2 protein with telomeres in the absence of viral DNA. U2OS cells were transfected with an empty vector, with IE2 expression vector or with IE2 delta 1290–1500 expression vector. Forty-eight hours later cells were processed for dual color immunofluorescence. Telomeres were labeled in cyan & IE2 in red. Nuclei are outlined by dashed lines. Examples of IE2 colocalizing with telomeres are presented in a 3D view (white arrows). C) The graph represents the mean ± SD % of WT IE2 & delta 1290–1500 IE2 localizing with telomeres. D) Lack of colocalization between HHV-6A p41 & telomeres in uninfected cells. U2OS cells were transfected with an empty vector or with a p41 expression vector. Forty-eight hours later cells were processed for dual color immunofluorescence. TRF2 was labeled green, p41 in red & nuclei outlined by a dashed line. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/32320442), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb100-56694_goat-polyclonal-trf-2-antibody-310202415541930.jpg)
![Immunocytochemistry/ Immunofluorescence: TRF-2 Antibody [NB100-56694] - Colocalization of shelterin complex proteins & HHV-6A IE2 protein at VRC & cellular telomeres.A) U2OS cells were mock-infected or infected with HHV-6A for 48h after which cells were processed for IF-FISH. Telomeres were labeled in magenta, TRF2 in green & IE2 in red. The panels in the middle row show images of cells with IE2 patches overlapping with large, diffuse TRF2 & telomeric staining (rectangles). The panels in the third row represent infected cells with punctate IE2 pattern colocalizing with TRF2 & telomeres (dashed squares). The colocalization of IE2, TRF2 & telomeres are shown in both 2D & 3D images. B) Uninfected & HHV-6A-infected U2OS cells were transfected with an empty vector, a myc-tagged-TRF1 expression vector. Forty-eight hours later cells were processed for IF-FISH. TRF1 was labeled in green & IE2 in red. Nuclei were stained with DAPI. Images on the far right show 2D colocalization of TRF1 with IE2. Image collected & cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/32320442), licensed under a CC-BY license. Not internally tested by Novus Biologicals.](http://images.novusbio.com/fullsize/nb100-56694_goat-polyclonal-trf-2-antibody-31020241612621.jpg)
![Immunocytochemistry/Immunofluorescence: TRF-2 Antibody [NBP1-86911] - Staining of human cell line U-2 OS shows localization to nuclear bodies. Antibody staining is shown in green.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Immunocytochemistry-Immunofluorescence-NBP1-86911-img0009.jpg "Immunocytochemistry/Immunofluorescence: TRF-2 Antibody [NBP1-86911] - Staining of human cell line U-2 OS shows localization to nuclear bodies. Antibody staining is shown in green.")
![Western Blot: TRF-2 Antibody [NBP1-86911] - Lane 1: Marker [kDa] 206, 113, 82, 49, 32, 26, 18. Lane 2: Human cell line RT-4. Lane 3: Human cell line U-251MG sp. Lane 4: Human cell line A-431. Lane 5: Human liver tissue. Lane 6: Human tonsil tissue](http://images.novusbio.com/fullsize/TRF-2-Antibody-Western-Blot-NBP1-86911-img0006.jpg)
![<b>Independent Antibodies Validation. </b>Immunohistochemistry-Paraffin: TRF-2 Antibody [NBP1-86910] - Staining of human tonsil shows nuclear positivity in germinal center cells and non-germinal center cells.](http://images.novusbio.com/fullsize/TRF-2-Antibody-Immunohistochemistry-Paraffin-NBP1-86910-img0004.jpg)
![Western Blot: TRF-2 Antibody (JE37-57) [NBP3-33049] - Western blot analysis of TRF-2 on different lysates with Rabbit anti-TRF-2 antibody (NBP3-33049) at 1/500 dilution. Lane 1: SiHa cell lysate Lane 2: Jurkat cell lysate Lysates/proteins at 10 ug/Lane. Predicted band size: 60 kDa Observed band size: 60 kDa Exposure time: 2 minutes; 10% SDS-PAGE gel. Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (NBP3-33049) at 1/500 dilution was used in 5% NFDM/TBST at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody at 1:200,000 dilution was used for 1 hour at room temperature.](http://images.novusbio.com/fullsize/nbp3-33049_rabbit-trf-2-mab-je37-57-288202412493422.jpg "Western Blot: TRF-2 Antibody (JE37-57) [NBP3-33049] - Western blot analysis of TRF-2 on different lysates with Rabbit anti-TRF-2 antibody (NBP3-33049) at 1/500 dilution. Lane 1: SiHa cell lysate Lane 2: Jurkat cell lysate Lysates/proteins at 10 ug/Lane. Predicted band size: 60 kDa Observed band size: 60 kDa Exposure time: 2 minutes; 10% SDS-PAGE gel. Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (NBP3-33049) at 1/500 dilution was used in 5% NFDM/TBST at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody at 1:200,000 dilution was used for 1 hour at room temperature.")
![Immunohistochemistry: TRF-2 Antibody (JE37-57) [NBP3-33049] - Immunohistochemical analysis of paraffin-embedded human colon carcinoma tissue with Rabbit anti-TRF-2 antibody (NBP3-33049) at 1/1,000 dilution. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 2 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (NBP3-33049) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.](http://images.novusbio.com/fullsize/nbp3-33049_rabbit-trf-2-mab-je37-57-298202414304128.jpg)
![Immunocytochemistry/ Immunofluorescence: TRF-2 Antibody (JE37-57) [NBP3-33049] - Immunocytochemistry analysis of SiHa cells labeling TRF-2 with Rabbit anti-TRF-2 antibody (NBP3-33049) at 20ug/mL dilution. Cells were fixed in 4% paraformaldehyde for 10 minutes at 37 ℃, permeabilized with 0.05% Triton X-100 in PBS for 20 minutes, and then blocked with 2% negative goat serum for 30 minutes at room temperature. Cells were then incubated with Rabbit anti-TRF-2 antibody (NBP3-33049) at 20ug/mL dilution in 2% negative goat serum overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (iFluor™ 488) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. Nuclear DNA was labelled in blue with DAPI.](http://images.novusbio.com/fullsize/nbp3-33049_rabbit-trf-2-mab-je37-57-29202410334036.jpg)
![Western Blot: TRF-2 Antibody (SR2115) [NBP3-21905] - Western blot analysis using NBP3-21905 in Jurkat cell lysate.](http://images.novusbio.com/fullsize/nbp3-21905_rabbit-trf-2-mab-sr2115-5720231595514.jpg "Western Blot: TRF-2 Antibody (SR2115) [NBP3-21905] - Western blot analysis using NBP3-21905 in Jurkat cell lysate.")
![ELISA: Human TRF-2 - Ready-To-Use ELISA Kit (Colorimetric) [NBP3-40195] - Standard Curve Reference](http://images.novusbio.com/fullsize/nbp3-40195_human-trf-2-ready-to-use-elisa-kit-colorimetric-2110202415273816.png "ELISA: Human TRF-2 - Ready-To-Use ELISA Kit (Colorimetric) [NBP3-40195] - Standard Curve Reference")
![ELISA: Human TRF-2 ELISA Kit (Colorimetric) [NBP3-40196] - Standard Curve Reference](http://images.novusbio.com/fullsize/nbp3-40196_human-trf-2-elisa-kit-colorimetric-2110202415343975.png "ELISA: Human TRF-2 ELISA Kit (Colorimetric) [NBP3-40196] - Standard Curve Reference")