AIB3 antibody (pAb)

RRID: AB_2615018
Aliases: Amplified in Breast Cancer 3, Nuclear Receptor Coactivator 6, NCoA6, NRC, NCOA6, ASC2, PRIP, TRBP, RAP250
Catalog No: 39835 Format: 100 µl $295 Buy
Catalog No: 39836 Format: 10 µl $95 Buy

Request a quote for a bulk order Request Quote

Antibody Type:
Affinity Purified
Molecular Weight:
250 kDa
Human, Mouse


Western Blot Validated Immunohistochemistry Validated

Published Applications

The following applications have been published using this antibody. Unless noted above, Active Motif may not have validated the antibody for use in these applications:



This AIB3 antibody was raised against a recombinant protein corresponding to amino acids 22-146 of mouse AIB3.


Purified IgG in 70 mM Tris-HCl (pH 8), 105 mM NaCl, 70 mM glycine, 30% glycerol, 0.035% sodium azide and 0.05% BSA. Sodium azide is highly toxic.


AIB3 (Amplified in Breast Cancer 3, Nuclear Receptor Coactivator 6, NCoA6) is a chromatin-associated protein that interacts with nuclear hormone receptors to modify their activity as transcriptional activators. AIB3 / NCoA6 was originally isolated as a ligand-dependent nuclear receptor interacting protein. It is a co-activator that directly binds nuclear receptors and stimulates their transcriptional activity in a hormone-dependent fashion. AIB3 is a multifunctional co-activator necessary for transcriptional activation of a wide spectrum of target genes. AIB3 is involved in growth, development, wound healing and maintenance of energy homeostasis. It can enhance the transcriptional activation of a variety of transcription factors and also associates with a number of important regulators of transcription including CBP and p300. AIB3 / NCoA6 is a component of at least three distinct MLL complexes, suggesting that AIB3 plays a fundamental role in transcriptional activation by modulating chromatin structure through histone methylation. AIB3 may also be involved in the co-activation of the NF-kappa-B pathway. It is amplified and overexpressed in breast, colon and lung cancers. AIB3 function is essential in mammalian development as AIB3 null embryos do not survive. Additionally, AIB null spontaneously undergo apoptosis, indicating that AIB3 has anti-apoptotic and pro-survival functions.


Some products may be shipped at room temperature. This will not affect their stability or performance. Avoid repeated freeze/thaw cycles by aliquoting items into single-use fractions for storage at -20°C for up to 2 years. Keep all reagents on ice when not in storage.


This product is guaranteed for 12 months from date of receipt.

This product is for research use only and is not for use in diagnostic procedures.

Application Key

  • ChIP = Chromatin Immunoprecipitation;
  • ChIP = ChIP Sequencing;
  • CUT&RUN = Cleavage Under Targets and Release Using Nuclease;
  • CUT&Tag = Cleavage Under Targets and Tagmentation;
  • DB = Dot Blot;
  • ELISA = Enzyme-linked Immunosorbent Assay;
  • EMSA = Electrophoretic Mobility Shift Assay
  • FC = Flow Cytometry;
  • ICC = Immunocytochemistry;
  • IF = Immunofluorescence;
  • IHC = Immunohistochemistry;
  • IP = Immunoprecipitation;
  • MeDIP = Methyl-DNA Immunoprecipitation;
  • NEU = Neutralizing;
  • WB = Western Blotting