Date published: 2026-4-1

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BRD4 Antibody (A-7): sc-518021

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Datasheets
  • BRD4 Antibody (A-7) is a mouse monoclonal IgG2b κ BRD4 antibody, cited in 14 publications, provided at 200 µg/ml
  • specific for an epitope mapping between amino acids 1148-1169 near the C-terminus of BRD4 of human origin
  • BRD4 Antibody (A-7) is recommended for detection of BRD4 of human origin by WB, IP, IF and ELISA
  • Anti-BRD4 Antibody (A-7) is available conjugated to agarose for IP; HRP for WB, IHC(P) and ELISA; and to either phycoerythrin or FITC for IF, IHC(P) and FCM
  • also available conjugated to Alexa Fluor® 488, Alexa Fluor® 546, Alexa Fluor® 594 or Alexa Fluor® 647 for WB (RGB), IF, IHC(P) and FCM, and for use with RGB fluorescent imaging systems, such as iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • also available conjugated to Alexa Fluor® 680 or Alexa Fluor® 790 for WB (NIR), IF and FCM; for use with Near-Infrared (NIR) detection systems, such as LI-COR®Odyssey®, iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • m-IgGκ BP-HRP is the preferred secondary detection reagent for BRD4 Antibody (A-7) for WB applications. This reagent is now offered in a bundle with BRD4 Antibody (A-7) (see ordering information below). For additional m-IgGκ BP conjugates see our complete list of Mouse IgG Binding Proteins.
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BRD4 Antibody (A-7) is a mouse monoclonal IgG2b kappa light chain antibody that detects BRD4 protein of human origin by western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), and enzyme-linked immunosorbent assay (ELISA). BRD4 Antibody (A-7) is available in both non-conjugated and various conjugated forms, including agarose, horseradish peroxidase (HRP), phycoerythrin (PE), fluorescein isothiocyanate (FITC), and multiple Alexa Fluor® conjugates. BRD4 is a member of the bromodomain and extraterminal (BET) family, characterized by two bromodomains that facilitate interaction with acetylated lysines on histones and non-histone proteins. This interaction regulates gene expression, particularly in cell cycle progression and transcriptional activation. BRD4 plays a significant role in assembling transcriptional machinery at target gene promoters, essential for proper cell growth and proliferation. Dysregulation of BRD4 has been implicated in various cancers, where aberrant function can lead to uncontrolled cell division and tumor progression. Understanding BRD4′s role in cellular processes highlights both normal physiological importance and potential as a therapeutic target in cancer treatment.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

BRD4 Antibody (A-7) References:

  1. BRD4 bromodomain gene rearrangement in aggressive carcinoma with translocation t(15;19).  |  French, CA., et al. 2001. Am J Pathol. 159: 1987-92. PMID: 11733348
  2. Growth and early postimplantation defects in mice deficient for the bromodomain-containing protein Brd4.  |  Houzelstein, D., et al. 2002. Mol Cell Biol. 22: 3794-802. PMID: 11997514
  3. A Mammalian bromodomain protein, brd4, interacts with replication factor C and inhibits progression to S phase.  |  Maruyama, T., et al. 2002. Mol Cell Biol. 22: 6509-20. PMID: 12192049
  4. BRD4-NUT fusion oncogene: a novel mechanism in aggressive carcinoma.  |  French, CA., et al. 2003. Cancer Res. 63: 304-7. PMID: 12543779
  5. Interaction of the bovine papillomavirus E2 protein with Brd4 tethers the viral DNA to host mitotic chromosomes.  |  You, J., et al. 2004. Cell. 117: 349-60. PMID: 15109495
  6. Opposing Functions of BRD4 Isoforms in Breast Cancer.  |  Wu, SY., et al. 2020. Mol Cell. 78: 1114-1132.e10. PMID: 32446320
  7. Targeting BRD4 prevents acute gouty arthritis by regulating pyroptosis.  |  Hao, K., et al. 2020. Int J Biol Sci. 16: 3163-3173. PMID: 33162822
  8. Arginine methylation of BRD4 by PRMT2/4 governs transcription and DNA repair.  |  Liu, L., et al. 2022. Sci Adv. 8: eadd8928. PMID: 36475791
  9. BRD4-targeting PROTAC as a unique tool to study biomolecular condensates.  |  Shi, Y., et al. 2023. Cell Discov. 9: 47. PMID: 37156794
  10. Distinct layers of BRD4-PTEFb reveal bromodomain-independent function in transcriptional regulation.  |  Zheng, B., et al. 2023. Mol Cell. 83: 2896-2910.e4. PMID: 37442129
  11. Methylation of BRD4 by PRMT1 regulates BRD4 phosphorylation and promotes ovarian cancer invasion.  |  Liu, Y., et al. 2023. Cell Death Dis. 14: 624. PMID: 37737256
  12. Cotargeting CDK4/6 and BRD4 Promotes Senescence and Ferroptosis Sensitivity in Cancer.  |  Zhu, X., et al. 2024. Cancer Res. 84: 1333-1351. PMID: 38277141

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

BRD4 Antibody (A-7)

sc-518021
200 µg/ml
$322.00

BRD4 Antibody (A-7): m-IgGκ BP-HRP Bundle

sc-525329
200 µg Ab, 40 µg BP
$361.00

BRD4 Antibody (A-7) AC

sc-518021 AC
500 µg/ml, 25% agarose
$424.00

BRD4 Antibody (A-7) HRP

sc-518021 HRP
200 µg/ml
$322.00

BRD4 Antibody (A-7) FITC

sc-518021 FITC
200 µg/ml
$336.00

BRD4 Antibody (A-7) PE

sc-518021 PE
200 µg/ml
$349.00

BRD4 Antibody (A-7) Alexa Fluor® 488

sc-518021 AF488
200 µg/ml
$364.00

BRD4 Antibody (A-7) Alexa Fluor® 546

sc-518021 AF546
200 µg/ml
$364.00

BRD4 Antibody (A-7) Alexa Fluor® 594

sc-518021 AF594
200 µg/ml
$364.00

BRD4 Antibody (A-7) Alexa Fluor® 647

sc-518021 AF647
200 µg/ml
$364.00

BRD4 Antibody (A-7) Alexa Fluor® 680

sc-518021 AF680
200 µg/ml
$364.00

BRD4 Antibody (A-7) Alexa Fluor® 790

sc-518021 AF790
200 µg/ml
$364.00

BRD4 Antibody (A-7): sc-518021: does it detect both the short and long isoform of BRD4 (short isoform lacks CTD that binds P-TEFb)

Asked by: eline
Thank you for your question. BRD4 Antibody (A-7): sc-518021 is specific for an epitope mapping between amino acids 1148-1169 near the C-terminus of BRD4 of human origin. Since this sequence is missing from the short isoform, it is not recognized.
Answered by: Tech Support Europe
Date published: 2026-03-13
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Rated 5 out of 5 by from Antibody works well by Western BlotAntibody shows a strong and clean >200 KDa Western Blot band, corresponding to human BRD4 Isoform A. The expected MW for Isoform A is 152.22 KDa, but the protein is heavily modified post-translation. -SCBT QC
Date published: 2023-09-14
Rated 5 out of 5 by from work wellI tried this antibody at 1:250 to detect the BRD4 abundance in mouse blastocysts, then got clear and beautiful IF images.
Date published: 2022-09-27
Rated 4 out of 5 by from Works for WBI test this antibody for WB of MCF-7 cells. When I cut the membrane over 80 kDa, this antibody gives clean signal.
Date published: 2018-02-28
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BRD4 Antibody (A-7) is rated 4.7 out of 5 by 3.
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