Endoglin/CD105 Antibody [Unconjugated]


Endoglin/CD105 was detected in immersion fixed rat mesenchymal stem cells using Goat Anti-Mouse Endoglin/CD105 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1320) at 10 µg/mL for 3 hours at room ...read more
Endoglin/CD105 was detected in immersion fixed MS-1 mouse pancreatic islet endothelial cell line using Goat Anti-Mouse Endoglin/CD105 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1320) at 10 µg/mL for 3 ...read more
Simple Western lane view shows lysates of bEnd.3 mouse endothelioma cell line, loaded at 0.2 mg/mL. A specific band was detected for Endoglin/CD105 at approximately 121 kDa (as indicated) using 5 µg/mL of Goat ...read more
Western blot shows lysates of bEnd.3 mouse endothelioma cell line and MS‑1 mouse pancreatic islet endothelial cell line. PVDF membrane was probed with 0.5 µg/mL of Goat Anti-Mouse Endoglin/CD105 Antigen ...read more
Endoglin/CD105 was detected in immersion fixed frozen sections of mouse embryo (E13-15) using Goat Anti-Mouse Endoglin/CD105 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1320) at 15 µg/mL overnight at 4 ...read more

Product Details

Reactivity MuSpecies Glossary
Applications WB, Simple Western, Flow, IHC, CyTOF-ready, ICC/IF

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Endoglin/CD105 Antibody [Unconjugated] Summary

Mouse myeloma cell line NS0-derived recombinant mouse Endoglin/CD105
Accession # Q8K100
Detects mouse Endoglin in direct ELISAs and Western blots. In direct ELISAs, less than 20% cross-reactivity with recombinant rat Endoglin is observed and less than 5% cross-reactivity with recombinant human Endoglin is observed.
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.


  • Western Blot 0.5 ug/mL
  • Simple Western 5 ug/mL
  • Flow Cytometry 2.5 ug/10^6 cells
  • Immunohistochemistry 5-15 ug/mL
  • CyTOF-ready
  • Immunocytochemistry 5-15 ug/mL
Reviewed Applications
Read 2 Reviews rated 4.5
AF1320 in the following applications:

Read Publications using
AF1320 in the following applications:

  • IHC
    10 publications
  • 4 publications

Packaging, Storage & Formulations

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
No Preservative
Reconstitution Instructions
Reconstitute at 0.2 mg/mL in sterile PBS.


This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Endoglin/CD105 Antibody [Unconjugated]

  • CD105 antigen
  • CD105
  • Endoglin
  • ENDOsler-Rendu-Weber syndrome 1
  • ENG
  • HHT1FLJ41744
  • ORW
  • ORW1


Endoglin (CD105) is a 90 kDa type I transmembrane glycoprotein of the zona pellucida (ZP) family of proteins (1-3). Endoglin and betaglycan/T beta RIII are type III receptors for TGF beta superfamily ligands, sharing 71% amino acid (aa) identity within the transmembrane (TM) and cytoplasmic domains. Endoglin is highly expressed on proliferating vascular endothelial cells, chondrocytes, and syncytiotrophoblasts of term placenta, with lower amounts on hematopoietic, mesenchymal and neural crest stem cells, activated monocytes, and lymphoid and myeloid leukemic cells (2-5). Mouse Endoglin cDNA encodes 653 aa including a 26 aa signal sequence, a 555 aa extracellular domain (ECD) with an orphan domain and a two-part ZP domain, a TM domain, and a 47 aa cytoplasmic domain (1-3). A mouse isoform with a 35 aa cytoplasmic domain (S-endoglin) can oppose effects of long (L) Endoglin (6, 7). The mouse Endoglin ECD shares 69%, 84%, 62%, 63%, and 66% aa identity with human, rat, bovine, porcine, and canine Endoglin, respectively. Endoglin homodimers interact with TGF-beta 1 and TGF-beta 3 (but not TGF-beta 2) but only after binding T beta RII (8). Similarly, they interact with activin-A and BMP-7 via activin type IIA or B receptors, and with BMP-2 via BMPR-1A/ALK-3 or BMPR-1B/ALK-6 (9). BMP-9, however, is reported to bind Endoglin directly (10). Endoglin modifies ligand-induced signaling in multiple ways. For example, expression of Endoglin can inhibit TGF-beta 1 signals but enhance BMP7 signals in the same myoblast cell line (11). In endothelial cells, Endoglin inhibits T beta RI/ALK5, but enhances ALK1-mediated activation (12). Deletion of mouse Endoglin causes lethal vascular and cardiovascular defects, and human Endoglin haploinsufficiency can a cause the vascular disorder, hereditary hemorrhagic telangiectasia type I (13, 14). These abnormalities confirm the essential function of Endoglin in differentiation of smooth muscle, angiogenesis, and neovascularization (2-4, 12-14). In preeclampsia of pregnancy, high levels of proteolytically generated soluble Endoglin and VEGF R1 (sFlt-1), along with low placental growth factor (PlGF), are pathogenic due to antiangiogenic activity (15).

  1. Ge, A.Z. and E.C. Butcher (1994) Gene 138:201.
  2. ten Dijke, P. et al. (2008) Angiogenesis 11:79.
  3. Bernabeu, C. et al. (2007) J. Cell. Biochem. 102:1375.
  4. Mancini, M.L. et al. (2007) Dev. Biol. 308:520.
  5. Moody, J.L. et al. (2007) Stem Cells 25:2809.
  6. Velasco, S. et al. (2008) J. Cell Sci. 121:913.
  7. Perez-Gomez, E. et al. (2005) Oncogene 24:4450.
  8. Cheifetz, S, et al. (1992) J. Biol. Chem. 267:19027.
  9. Barbara, N.P. et al. (1999) J. Biol. Chem. 274:584.
  10. Scharpfenecker, M. et al. (2007) J. Cell Sci. 120:964.
  11. Scherner, O. et al. (2007) J. Biol. Chem. 282:13934.
  12. Pece-Barbara, N. et al. (2005) J. Biol. Chem. 280:27800.
  13. Arthur, H.M. et al. (2000) Dev. Biol. 217:42.
  14. Lebrin, F. and C.L. Mummery (2008) Trends Cardiovasc. Med. 18:25.    
  15. Venkatesha, S. et al. (2006) Nat. Med. 12:642.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Publications for Endoglin/CD105 Antibody (AF1320)(14)

We have publications tested in 3 confirmed species: Human, Mouse, Xenograft.

We have publications tested in 2 applications: IHC, IHC-P.

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Showing Publications 1 - 10 of 14. Show All 14 Publications.
Publications using AF1320 Applications Species
M Ishikawa, M Osaki, M Yamagishi, K Onuma, H Ito, F Okada, H Endo Correlation of two distinct metastasis-associated proteins, MTA1 and S100A4, in angiogenesis for promoting tumor growth Oncogene, 2019;0(0):. 2019 [PMID: 30745574] (IHC-P, Xenograft) IHC-P Xenograft
G Eelen, C Dubois, AR Cantelmo, J Goveia, U Brüning, M DeRan, G Jarugumill, J van Rijsse, G Saladino, F Comitani, A Zecchin, S Rocha, R Chen, H Huang, S Vandekeere, J Kalucka, C Lange, F Morales-Ro, B Cruys, L Treps, L Ramer, S Vinckier, K Brepoels, S Wyns, J Souffreau, L Schoonjans, WH Lamers, Y Wu, J Haustraete, J Hofkens, S Liekens, R Cubbon, B Ghesquière, M Dewerchin, FL Gervasio, X Li, JD van Buul, X Wu, P Carmeliet Role of glutamine synthetase in angiogenesis beyond glutamine synthesis Nature, 2018;561(7721):63-69. 2018 [PMID: 30158707] (IHC, Mouse) IHC Mouse
R Bauer, F Udonta, M Wroblewski, I Ben-Batall, IM Santos, F Taverna, M Kuhlencord, V Gensch, S Päsler, S Vinckier, JM Brandner, K Pantel, C Bokemeyer, T Vogl, J Roth, P Carmeliet, S Loges Blockade of myeloid-derived suppressor cell expansion with all-trans retinoic acid increases the efficacy of anti-angiogenic therapy Cancer Res., 2018;0(0):. 2018 [PMID: 29674477] (IHC-P, Mouse) IHC-P Mouse
DL Coutu, KD Kokkaliari, L Kunz, T Schroeder Multicolor quantitative confocal imaging cytometry Nat. Methods, 2018;15(1):39-46. 2018 [PMID: 29320487] (IHC, Mouse) IHC Mouse
M Wroblewski, R Bauer, M Cubas Córd, F Udonta, I Ben-Batall, K Legler, C Hauser, J Egberts, M Janning, J Velthaus, C Schulze, K Pantel, C Bokemeyer, S Loges Mast cells decrease efficacy of anti-angiogenic therapy by secreting matrix-degrading granzyme B Nat Commun, 2017;8(1):269. 2017 [PMID: 28814715] (IHC, Mouse) IHC Mouse
EM Palmieri, A Menga, R Martín-Pér, A Quinto, C Riera-Domi, G De Tullio, DC Hooper, WH Lamers, B Ghesquière, DW McVicar, A Guarini, M Mazzone, A Castegna Pharmacologic or Genetic Targeting of Glutamine Synthetase Skews Macrophages toward an M1-like Phenotype and Inhibits Tumor Metastasis Cell Rep, 2017;20(7):1654-1666. 2017 [PMID: 28813676] (IHC, Mouse) IHC Mouse
N García-Rom, J Carrión-Na, S Esteban-Ru, E Lázaro-Ibá, M Peris-Celd, MM Alonso, J Guzmán-De-, C Fernández-, AO de Mendivi, S García-Duq, C Escobedo-L, R Prat-Acín, C Belda-Inie, A Ayuso-Saci DNA sequences within glioma-derived extracellular vesicles can cross the intact blood-brain barrier and be detected in peripheral blood of patients Oncotarget, 2017;8(1):1416-1428. 2017 [PMID: 27902458] (IHC, Mouse) IHC Mouse
PI3 kinase inhibition improves vascular malformations in mouse models of hereditary haemorrhagic telangiectasia Nat Commun, 2016;7(0):13650. 2016 [PMID: 27897192] (IHC, Mouse) IHC Mouse
Stimac M, Dolinsek T, Lampreht U, Cemazar M, Sersa G Gene Electrotransfer of Plasmid with Tissue Specific Promoter Encoding shRNA against Endoglin Exerts Antitumor Efficacy against Murine TS/A Tumors by Vascular Targeted Effects. PLoS ONE, 2015;10(4):e0124913. 2015 [PMID: 25909447] (IHC-P, Mouse) IHC-P Mouse
Grafton K, Moir L, Black J, Hansbro N, Hansbro P, Burgess J, Oliver B LF-15 & T7, synthetic peptides derived from tumstatin, attenuate aspects of airway remodelling in a murine model of chronic OVA-induced allergic airway disease. PLoS ONE, 2014;9(1):e85655. 2014 [PMID: 24454912] (IHC, Human) IHC Human
Show All 14 Publications.

Reviews for Endoglin/CD105 Antibody (AF1320) (2) 4.52

Average Rating: 4.5
(Based on 2 reviews)
We have 2 reviews tested in 1 species: Mouse.

Reviews using AF1320:
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Images Ratings Applications Species Date Details
reviewed by:
IF Mouse 01/05/2015


Sample TestedSee PMID 23593103


Blocking DetailsSee PMID 23593103


Detection NotesSee PMID 23593103


CommentsSee PMID 23593103
reviewed by:
IF Mouse 01/05/2015


Sample TestedSee PMID 21060150


Blocking DetailsSee PMID 21060150


Detection NotesSee PMID 21060150


CommentsPublished PMID 21060150

Product General Protocols

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WB Video Protocol

FAQs for Endoglin/CD105 Antibody (AF1320). (Showing 1 - 2 of 2 FAQs).

  1. I wonder if you have a CD105 or CD34 antibody suitable for IHC that is specific for human and do not bind mouse?
    • We do not have any anti-human CD34 or CD105 antibodies that are confirmed to NOT detect the mouse protein. When we have tested an antibody and confirmed that it will not react with mouse samples, we will add Mu(-) to the datasheet, and unfortunately all of our CD105 and CD34 antibodies will either detect the mouse protein, or they have not been used in mouse samples before.
  2. We are interested in CD105 antibodies that could react with dog, please let me know which products in your catalog you would recommend.
    • We do not currently carry any CD105 antibodies that have been validated for use in dog samples. However, if you are interested in testing any of our CD105 antibodies with dog samples you would be eligible for our Innovators Reward Program, in which you can get a discount voucher for the purchase price of the product. Please contact us at innovators@novusbio.com with any questions regarding this program.

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Biotin BAF1320

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Application: IF
Species: Mouse

Application: IF
Species: Mouse


Gene Symbol ENG
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