視網膜母細胞瘤蛋白

視網膜母細胞瘤蛋白
已知的結構
PDB	直系同源搜索: PDBe RCSB
PDBID列表
	1AD6、1GH6、1GUX、1H25、1N4M、1O9K、1PJM、2AZE、2QDJ、2R7G、3N5U、3POM、4ELJ、4ELL、4CRI
識別號
別名	RB1；, pRb, RB, retinoblastoma 1, OSRC, PPP1R130, p105-Rb, pp110, Retinoblastoma protein, RB transcriptional corepressor 1, p110-RB1
外部ID	OMIM：614041 MGI：97874 HomoloGene：272 GeneCards：RB1
相關疾病
	膀胱癌、lung small cell carcinoma、familial retinoblastoma
基因位置（人類）
染色體	13號染色體
終止	48,599,436 bp
基因位置（小鼠）
染色體	小鼠14號染色體
終止	73,563,262 bp
RNA表達模式
	; ;
	查閱更多表達數據
基因本體
分子功能	• DNA結合; • DNA結合轉錄因子活性; • 轉錄共激活因子活性; • 轉錄因子結合; • 磷蛋白結合; • 激酶結合; • 血漿蛋白結合; • 雄激素受體結合; • 相同蛋白質結合; • 酶結合; • 泛素蛋白連接酶結合; • importin-α家族蛋白結合; • 無序域特異性結合; • 核心啟動子近端區域序列特異性DNA結合; • DNA結合轉錄阻遏物活性，RNA聚合酶II特異性;
細胞組分	• PML body; • SWI/SNF complex; • 轉錄調節複合物; • 紡錘體; • cyclin/CDK positive transcription elongation factor complex; • 染色質; • 細胞核; • 核質; • Rb-E2F complex;
生物學過程	• negative regulation of cell population proliferation; • negative regulation of mitotic cell cycle; • neuron apoptotic process; • androgen receptor signaling pathway; • 染色體重建; • negative regulation of smoothened signaling pathway; • negative regulation of protein kinase activity; • cell morphogenesis involved in neuron differentiation; • mitotic cell cycle checkpoint signaling; • regulation of transcription by RNA polymerase II; • positive regulation of macrophage differentiation; • cellular response to xenobiotic stimulus; • negative regulation of cell cycle; • negative regulation of DNA-binding transcription factor activity; • transcription, DNA-templated; • glial cell apoptotic process; • regulation of cohesin loading; • regulation of cell cycle; • neuron maturation; • 細胞分裂; • positive regulation of transcription, DNA-templated; • negative regulation of G1/S transition of mitotic cell cycle; • positive regulation of mitotic metaphase/anaphase transition; • regulation of centromere complex assembly; • enucleate erythrocyte differentiation; • neuron differentiation; • regulation of mitotic cell cycle; • negative regulation of epithelial cell proliferation; • skeletal muscle cell differentiation; • sister chromatid biorientation; • protein localization to chromosome, centromeric region; • 細胞週期; • striated muscle cell differentiation; • Ras protein signal transduction; • myoblast differentiation; • viral process; • negative regulation of transcription, DNA-templated; • neuron projection development; • digestive tract development; • maintenance of mitotic sister chromatid cohesion; • regulation of lipid kinase activity; • positive regulation of transcription by RNA polymerase II; • hepatocyte apoptotic process; • 細胞凋亡; • positive regulation of transcription regulatory region DNA binding; • negative regulation of gene expression; • regulation of cell growth; • tissue homeostasis; • regulation of transcription, DNA-templated; • G1/S transition of mitotic cell cycle; • negative regulation of transcription by RNA polymerase II; • negative regulation of transcription involved in G1/S transition of mitotic cell cycle; • chromatin organization; • aortic valve morphogenesis; • negative regulation of inflammatory response; • positive regulation of extracellular matrix organization; • positive regulation of collagen fibril organization; • negative regulation of myofibroblast differentiation; • 細胞分化; • negative regulation of cold-induced thermogenesis; • negative regulation of protein serine/threonine kinase activity; • negative regulation of tau-protein kinase activity; • negative regulation of apoptotic signaling pathway;
	Sources:Amigo / QuickGO
直系同源
	5925
	19645
	ENSG00000139687
	ENSMUSG00000022105
	P06400
	P13405
	NM_000321
	NM_009029
	NP_000312; NP_000312.2
	NP_033055
	維基數據
檢視/編輯人類	檢視/編輯小鼠

視網膜母細胞瘤蛋白（英語：retinoblastoma protein，常縮寫為Rb、RB或RB1）又譯為成視網膜細胞瘤蛋白是一種抑癌蛋白，並在幾種主要的癌症發生時失活^[6]。Rb的功能之一是通過抑制細胞周期進程直到細胞準備妥當來防止細胞過度生長。當細胞準備好要分裂時，Rb蛋白會被磷酸化為pRb而失去抑制活性，從而使細胞周期進行下去。