BRCAA1 Antibody


Western Blot: BRCAA1 Antibody [NBP1-51226] Extracts from HuvEc cells

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BRCAA1 Antibody Summary

Synthetic peptide, corresponding to amino acids 776-832 of Human BRCAA1.
BRCAA1 (D810) pAb detects endogenous levels of BRCAA1 protein.
Immunogen affinity purified
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  • Western Blot 1:500-1:1000
Application Notes
Western blot (WB) analysis of BRCAA1 (D810) pAb in extracts from HuvEc cells
Theoretical MW
150 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Reactivity Notes

Cross reacts with Human, Mouse and Rat.

Packaging, Storage & Formulations

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
PBS (pH 7.2)
0.05% Sodium Azide
1.0 mg/ml
Immunogen affinity purified

Alternate Names for BRCAA1 Antibody

  • 180 kDa Sin3-associated polypeptide
  • ARID domain-containing protein 4B
  • AT rich interactive domain 4B (RBP1- like)
  • AT rich interactive domain 4B (RBP1-like)
  • AT-rich interactive domain-containing protein 4B
  • BRCAA1DKFZp313M2420
  • breast cancer-associated antigen 1
  • Breast cancer-associated antigen BRCAA1
  • breast carcinoma-associated antigen
  • Histone deacetylase complex subunit SAP180
  • Rb-binding protein homolog
  • RBP1-like protein
  • retinoblastoma binding protein 1-like 1
  • Retinoblastoma-binding protein 1-like 1
  • SAP180MGC163290
  • SIN3A-associated protein 180
  • Sin3-associated polypeptide p180


The breast cancer-associated antigen BRCAA1, also designated ARID domaincontaining protein 4B (ARID4B), Sin3-associated polypeptide p180 (SAP180),or Retinoblastoma-binding protein 1-like 1 (RBBP1L1 or RBP1L1), shares 37% amino acid identity and an identical antigen epitope, SSKKQKRSHK, with Rb binding protein 1. High expression of BRCAA1 mRNA has been found in human breast, lung, colon, pancreatic and ovarian cancers, as well as in normal testis. This expression pattern indicates that BRCAA1 can be uses as a molecular marker for a broad range of human malignancies. BRCAA1 also interacts with RBBP1/ARID4A and regulates genomic imprinting at the Prader-WIlli syndrome (PWS)/Angelman syndrome (AS) domain.


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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Gene Symbol ARID4B