background:
This gene encodes a protein which is a member of the bromodomain-containing protein family. The product of this gene has been identified as a component of one form of the SWI/SNF chromatin remodeling complex, and as a protein which interacts with p53 and is required for p53-dependent oncogene-induced senescence which prevents tumor growth. Pseudogenes have been described on chromosomes 2, 3, 6, 13 and 14. Alternative splicing results in multiple transcript variants.
Function:
Acts both as coactivator and as corepressor. May play a role in chromatin remodeling. Activator of the Wnt signaling pathway in a DVL1-dependent manner by negatively regulating the GSK3B phosphotransferase activity. Induces dephosphorylation of GSK3B at 'Tyr-216'. Down-regulates TRIM24-mediated activation of transcriptional activation by AR (By similarity). Transcriptional corepressor that down-regulates the expression of target genes. Binds to target promoters, leading to increased histone H3 acetylation at 'Lys-9' (H3K9ac). Binds to the ESR1 promoter. Recruits BRCA1 and POU2F1 to the ESR1 promoter. Coactivator for TP53-mediated activation of transcription of a set of target genes. Required for TP53-mediated cell-cycle arrest in response to oncogene activation. Promotes acetylation of TP53 at 'Lys-382', and thereby promotes efficient recruitment of TP53 to target promoters. Inhibits cell cycle progression from G1 to S phase.
Subunit:
Interacts with TRIM24, PTPN13 and DVL1. Identified in a complex with SMARCA4/BRG1, SMARCC1/BAF155, SMARCE1/BAF57, DPF2/BAF45D and ARID2, subunits of the SWI/SNF-B (PBAF) chromatin remodeling complex (By similarity). Interacts with IRF2 and HNRPUL1. Interacts (via N-terminus) with TP53. Interacts (via SLCterminus) with EP300. Interacts with BRCA1. Interacts (via bromo domain) with histone H3 (via N-terminus) acetylated at 'Lys-14' (H3K14ac). Has low affinity for histone H3 acetylated at 'Lys-9' (H3K9ac). Has the highest affinity for histone H3 that is acetylated both at 'Lys-9' (H3K9ac) and at 'Lys-14' (H3K14ac). Has very low affinity for non-acetylated histone H3. Interacts (via bromo domain) with histone H4 (via N-terminus) acetylated at 'Lys-8' (H3K8ac) (in vitro).
Subcellular Location:
Isoform 2: Nucleus.
Similarity:
Contains 1 bromo domain.
Database links:
UniProtKB/Swiss-Prot: Q9NPI1.1
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
BRD7可能参与了基因转录调控,是一个核转录调节蛋白。经研究发现BRD7可能是通过Ras/MEK/ERK和Rb/E2F两条通路影响细胞周期的进程，使细胞停滞于G0/G1期，BRD7具有阻止细胞周期进程的作用。BRD7蛋白尤其是在鼻咽癌的发病过程中发挥了十分重要作用，BRD7基因的过表达可通过调节MAPK及Wnt信号通路抑制鼻咽癌的生长，并将鼻咽癌阻滞在G1/S期。
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