background:
RbBP5, retinoblastoma binding protein 5, belongs to a highly conserved subfamily of WD proteins and contains 6 WD repeats. It binds preferentially to underphosphorylated retinoblastoma protein, which is involved in the control of cell proliferation. RbBP5 is a component of the SET1 complex and of MLL containing complexes. RbBP5 is phosphorylated in response to DNA damage, probably by ATM/ATR.
Function:
As part of the MLL1/MLL complex it is involved in methylation and dimethylation at 'Lys-4' of histone H3. H3 'Lys-4' methylation represents a specific tag for epigenetic transcriptional activation.
Subunit:
Component of the SET1 complex, at least composed of the catalytic subunit (SETD1A or SETD1B), WDR5, WDR82, RBBP5, ASH2L/ASH2, CXXC1/CFP1, HCFC1 and DPY30. Core component of several methyltransferase-containing complexes including MLL1/MLL, MLL2/3 (also named ASCOM complex) and MLL4/WBP7. Each complex is at least composed of ASH2L, RBBP5, WDR5, DPY30, one or more specific histone methyltransferases (MLL, MLL2/ALR, MLL3 and MLL4/WBP7), and the facultative components C16orf53/PA1, C17orf49, CHD8, E2F6, HCFC1, HCFC2, HSP70, INO80C, KDM6A, KANSL1, LAS1L, MAX, MCRS1, MEN1, MGA, MYST1/MOF, NCOA6, PAXIP1/PTIP, PELP1, PHF20, PRP31, RING2, RUVB1/TIP49A, RUVB2/TIP49B, SENP3, TAF1, TAF4, TAF6, TAF7, TAF9, TEX10 and alpha- and beta-tubulin. Interacts with WDR5 and ASH2L; the interaction is direct. Interacts with WDR82 and SETD1A.
Subcellular Location:
Nucleus.
Tissue Specificity:
Ubiquitously expressed.
Post-translational modifications:
Phosphorylated upon DNA damage, probably by ATM or ATR.
Similarity:
Contains 6 WD repeats.
Database links:
Entrez Gene: 5929 Human
Entrez Gene: 213464 Mouse
Omim: 600697 Human
SwissProt: Q15291 Human
SwissProt: Q8BX09 Mouse
Unigene: 519230 Human
Unigene: 132868 Mouse
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
视网膜母细胞瘤结合蛋白5抗体
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