| 產(chǎn)品介紹 |
background:
RbAp48 (Retinoblastoma-binding protein p48 or Rb-associated protein p48)is a WD repeat protein that is a core histone binding subunit common to several complexes involved in chromatin assembly, chromatin remodeling, and histone deacetylation. These complexes include Chromatin Assembly Factor 1 (CAF1), which is required for chromatin assembly following DNA replication and repair, the core histone deacetylase (HDAC) complex, which promotes histone deacetylation and subsequent transcriptional repression, the nucleosome remodeling and histone deacetylation complex NuRD, the nucleosome remodeling factor (NURF) complex, and the PRC2 complex, which promotes repression of homeotic genes during development. RpAp48 also interacts with the retinoblastoma protein, and with SPEN/MINT and BRCA1. It is also a component of the DREAM complex, which represses cell cycle-dependent genes in quiescent cells.
Function:
Core histone-binding subunit that may target chromatin assembly factors, chromatin remodeling factors and histone deacetylases to their histone substrates in a manner that is regulated by nucleosomal DNA. Component of several complexes which regulate chromatin metabolism. These include the chromatin assembly factor 1 (CAF-1) complex, which is required for chromatin assembly following DNA replication and DNA repair; the core histone deacetylase (HDAC) complex, which promotes histone deacetylation and consequent transcriptional repression; the nucleosome remodeling and histone deacetylase complex (the NuRD complex), which promotes transcriptional repression by histone deacetylation and nucleosome remodeling; the PRC2/EED-EZH2 complex, which promotes repression of homeotic genes during development; and the NURF (nucleosome remodeling factor) complex.
Subunit:
Interacts with SUV39H1 and HDAC7 (By similarity). Binds directly to helix 1 of the histone fold of histone H4, a region that is not accessible when H4 is in chromatin. Subunit of the chromatin assembly factor 1 (CAF-1) complex, which is composed of RBBP4, CHAF1B and CHAF1A. Subunit of the core histone deacetylase (HDAC) complex, which is composed of HDAC1, HDAC2, RBBP4 and RBBP7. The core HDAC complex associates with SIN3A, ARID4B/SAP180, SAP18, SAP30, SAP130, SUDS3/SAP45 and possibly ARID4A/RBP1 and ING1 to form the SIN3 HDAC complex. The core HDAC complex may also associate with MTA2, MBD3, CHD3 and CHD4 to form the nucleosome remodeling and histone deacetylase complex (the NuRD complex). The NuRD complex may also interact with MBD3L1 and MBD3L2. Interacts with MTA1. Subunit of the PRC2/EED-EZH2 complex, which is composed of at least EED, EZH2, RBBP4, RBBP7 and SUZ12. The PRC2/EED-EZH2 complex may also associate with HDAC1. Component of the PRC2/EED-EZH1 complex, which includes EED, EZH1, SUZ12, RBBP4 and AEBP2. Part of the nucleosome remodeling factor (NURF) complex which consists of SMARCA1; BPTF; RBBP4 and RBBP7. Interacts with the viral protein-binding domain of the retinoblastoma protein (RB1). Interacts with SPEN/MINT. Interacts with BRCA1. Interacts with CREBBP, and this interaction may be enhanced by the binding of phosphorylated CREB1 to CREBBP. Component of the DREAM complex (also named LINC complex) at least composed of E2F4, E2F5, LIN9, LIN37, LIN52, LIN54, MYBL1, MYBL2, RBL1, RBL2, RBBP4, TFDP1 and TFDP2. The complex exists in quiescent cells where it represses cell cycle-dependent genes. It dissociates in S phase when LIN9, LIN37, LIN52 and LIN54 form a subcomplex that binds to MYBL2.
Subcellular Location:
Nucleus.
Similarity:
Belongs to the WD repeat RBAP46/RBAP48/MSI1 family.
Contains 6 WD repeats.
Database links:
Entrez Gene: 395658 Chicken
Entrez Gene: 767940 Cow
Entrez Gene: 5928 Human
Entrez Gene: 19646 Mouse
Entrez Gene: 313048 Rat
Entrez Gene: 496866 Xenopus tropicalis
Entrez Gene: 321726 Zebrafish
Omim: 602923 Human
SwissProt: Q9W7I5 Chicken
SwissProt: Q3MHL3 Cow
SwissProt: Q09028 Human
SwissProt: Q60972 Mouse
SwissProt: Q5RF92 Orangutan
SwissProt: Q5M7K4 Xenopus tropicalis
SwissProt: Q6P3H7 Zebrafish
Unigene: 16003 Human
Unigene: 12145 Mouse
Unigene: 76462 Zebrafish
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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