P06400
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UniProt Secondary Accession #
UniProt Related Accession #
NCBI Official Full Name
retinoblastoma
NCBI Official Synonym Full Names
retinoblastoma 1
NCBI Protein Information
retinoblastoma-associated protein; OTTHUMP00000018397; retinoblastoma suspectibility protein
UniProt Protein Name
Retinoblastoma-associated protein
UniProt Synonym Protein Names
p105-Rb; pRb; Rb; pp110
UniProt Entry Name
RB_HUMAN
NCBI Summary for RB1
The protein encoded by this gene is a negative regulator of the cell cycle and was the first tumor suppressor gene found. The encoded protein also stabilizes constitutive heterochromatin to maintain the overall chromatin structure. The active, hypophosphorylated form of the protein binds transcription factor E2F1. Defects in this gene are a cause of childhood cancer retinoblastoma (RB), bladder cancer, and osteogenic sarcoma. [provided by RefSeq]
UniProt Comments for RB1
Rb: retinoblastoma tumor suppressor protein regulates cell proliferation by controlling progression through the G1-phase restriction point. Has three distinct binding domains and interacts with regulatory proteins including the E2F family of transcription factors, c-Abl tyrosine kinase and proteins with a conserved LXCXE motif. Cell cycle-dependent phosphorylation by Cdks inhibits Rb target binding, thus allowing cell cycle progression. Recruits and targets histone methyltransferase suv39h1 leading to epigenetic transcriptional repression.
Protein type: Transcription, coactivator/corepressor; Oncoprotein; Nuclear receptor co-regulator; Tumor suppressor
Chromosomal Location of Human Ortholog: 13q14.2
Cellular Component: nucleoplasm; SWI/SNF complex; PML body; Rb-E2F complex; spindle; nucleus; chromatin
Molecular Function: identical protein binding; protein binding; androgen receptor binding; DNA binding; ubiquitin protein ligase binding; transcription coactivator activity; phosphoprotein binding; transcription factor activity; transcription factor binding; kinase binding
Biological Process: viral reproduction; sister chromatid biorientation; positive regulation of transcription, DNA-dependent; negative regulation of transcription from RNA polymerase II promoter, mitotic; regulation of mitotic cell cycle; neuron maturation; cell cycle arrest; positive regulation of macrophage differentiation; neurite development; negative regulation of epithelial cell proliferation; transcription, DNA-dependent; negative regulation of transcription factor activity; mitotic cell cycle checkpoint; enucleate erythrocyte differentiation; regulation of lipid kinase activity; G1/S-specific transcription in mitotic cell cycle; myoblast differentiation; chromatin remodeling; neuron apoptosis; maintenance of mitotic sister chromatid cohesion; gut development; cell division; neuron morphogenesis during differentiation; negative regulation of smoothened signaling pathway; androgen receptor signaling pathway; Ras protein signal transduction; positive regulation of mitotic metaphase/anaphase transition; striated muscle cell differentiation; negative regulation of protein kinase activity; positive regulation of transcription from RNA polymerase II promoter; mitotic cell cycle; negative regulation of transcription, DNA-dependent; cell cycle checkpoint; G1/S transition of mitotic cell cycle
Disease: Bladder Cancer; Osteogenic Sarcoma; Small Cell Cancer Of The Lung; Retinoblastoma
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Products associated with anti-RB1 antibody
Pathways associated with anti-RB1 antibody
Diseases associated with anti-RB1 antibody
Organs/Tissues associated with anti-RB1 antibody
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