E2F-1 Antibody

E2F‑1 was detected in immersion fixed paraffin-embedded sections of human placenta using 5 µg/mL Sheep Anti-Human E2F‑1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4825) overnight at 4 °C. Tissue was stained with the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019) and counterstained with hematoxylin (blue). View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Western blot shows lysates of HeLa human cervical epithelial carcinoma cell line and human skin tissue. PVDF membrane was probed with 1 µg/mL of Sheep Anti-Human E2F-1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4825) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for E2F-1 at approximately 60 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8.

• Reactivity: Hu
• Applications: WB, IHC
• Clonality: Polyclonal
• Host: Sheep
• Conjugate: Unconjugated
• Concentration: LYOPH

E2F-1 Antibody Summary

• Immunogen: E. coli-derived recombinant human E2F-1
  Val264-Phe437
  Accession # Q01094
• Specificity: Detects human E2F-1 in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross-reactivity with recombinant human E2F-2, -3, -4, -5, -6, -7, and -8 is observed.
• Source: N/A
• Isotype: IgG
• Clonality: Polyclonal
• Host: Sheep
• Gene: E2F1
• Purity Statement: Antigen Affinity-purified

Applications/Dilutions

• Dilutions:
  • Immunohistochemistry 5-15 ug/mL
  • Western Blot 1 ug/mL

Packaging, Storage & Formulations

• Storage: 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.
• Buffer: Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
• Preservative: No Preservative
• Concentration: LYOPH
• Reconstitution Instructions: Reconstitute at 0.2 mg/mL in sterile PBS.

Notes

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

Alternate Names for E2F-1 Antibody

• E2F transcription factor 1
• E2F1
• E2F-1
• PBR3
• PRB-binding protein E2F-1
• RBAP1
• RBAP-1
• RBBP3
• RBBP-3
• RBP3
• Retinoblastoma-associated protein 1
• Retinoblastoma-binding protein 3
• transcription factor E2F1

Background

E2F-1 (adenovirus E2 gene promoter region binding factor 1; also retinoblastoma [RB]-binding protein 3/RBP3) is a 57 - 60 kDa nuclear member of the E2F/DP family of transcription factors. It has a dual function, mediating both cell proliferation and apoptosis in a context-dependent manner. Human E2F-1 is 437 amino acids (aa) in length. It contains a cyclin A: CDK2 binding site (aa 67 - 108), a DNA-binding region (aa 110 - 194), and an RB protein binding motif (aa 409 - 426) that, when engaged, inactivates E2F-1. There is one potential in-frame 23 aa substitution for aa 89 - 111. Over aa 264 - 437, human E2F-1 shows 89% and 80% aa identity to canine and mouse E2F-1, respectively.

Limitations

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.

Publications for E2F-1 Antibody (AF4825)(3)

Publications using AF4825

• Trevor Dale, Paul A. Clarke, Christina Esdar, Dennis Waalboer, Olajumoke Adeniji-Popoola, Maria-Jesus Ortiz-Ruiz et al. A selective chemical probe for exploring the role of CDK8 and CDK19 in human disease Nature Chemical Biology 2015-12-01 [PMID: 26502155]
• Althoff K, Beckers A, Bell E, Nortmeyer M, Thor T, Sprussel A, Lindner S, De Preter K, Florin A, Heukamp L, Klein-Hitpass L, Astrahantseff K, Kumps C, Speleman F, Eggert A, Westermann F, Schramm A, Schulte J A Cre-conditional MYCN-driven neuroblastoma mouse model as an improved tool for preclinical studies. Oncogene, 2014-09-01;34(26):3357-68. 2014-09-01 [PMID: 25174395] (Western Blot, Mouse)
• Anton Henssen, Theresa Thor, Andrea Odersky, Lukas Heukamp, Nicolai El-Hindy, Anneleen Beckers et al. BET bromodomain protein inhibition is a therapeutic option for medulloblastoma Oncotarget 2013-11-30 [PMID: 24231268] (Western Blot, Human)

Bioinformatics

• Gene Symbol: E2F1
• Uniprot:
  • Q01094()