RPS6KB1(核糖体蛋白S6激酶B1,ribosomal protein S6 kinase B1)是AGC激酶家族成员,属于S6K基因家族(包括RPS6KB1和RPS6KB2),主要参与调控细胞生长、增殖和代谢。该基因编码的蛋白是mTORC1(哺乳动物雷帕霉素靶蛋白复合物1)信号通路的关键效应分子,通过磷酸化核糖体蛋白S6(ribosomal protein S6)和下游靶点(如eIF4B、PDCD4等)促进蛋白质合成。其生物学功能包括响应生长因子和营养信号,协调细胞周期进程、自噬(autophagy,细胞自我降解过程)和糖代谢。主要作用位点为细胞质和细胞核,尤其在活跃翻译的核糖体附近富集。突变或异常表达会导致功能紊乱,例如功能获得性突变(如错义突变)可能引发过度增殖性疾病(如癌症),而功能缺失性突变则与发育迟缓或免疫缺陷相关。该基因与多种疾病相关,包括乳腺癌、前列腺癌等恶性肿瘤,以及糖尿病和肥胖等代谢性疾病。过表达时,RPS6KB1会持续激活mTOR通路,导致细胞异常增殖和肿瘤发生,同时抑制自噬,影响细胞稳态;而表达降低则可能引起蛋白质合成障碍、细胞生长停滞或代谢异常。S6K基因家族的共性是通过mTOR信号调控翻译起始和延伸,影响细胞大小与增殖。专业术语解释:mTORC1(调控细胞生长的蛋白质复合物)、磷酸化(添加磷酸基团修饰蛋白质功能)、eIF4B(翻译起始因子)。若中文术语不准确,可参考英文原词标注。
This gene encodes a member of the ribosomal S6 kinase family of serine/threonine kinases. The encoded protein responds to mTOR (mammalian target of rapamycin) signaling to promote protein synthesis, cell growth, and cell proliferation. Activity of this gene has been associated with human cancer. Alternatively spliced transcript variants have been observed. The use of alternative translation start sites results in isoforms with longer or shorter N-termini which may differ in their subcellular localizations. There are two pseudogenes for this gene on chromosome 17. [provided by RefSeq, Jan 2013]
该基因编码的核糖体S6激酶家族丝氨酸/苏氨酸激酶的成员。所编码的蛋白质来响应的mTOR(雷帕霉素的哺乳动物靶标)信号,以促进蛋白质合成,细胞生长和细胞增殖。这种基因的活性已经与人类癌症有关。可变剪接转录物变体已观察到。使用替代的翻译开始用长或短的N末端亚型可以在他们的亚细胞定位不同地点的结果。有两个为假17号染色??体上该基因[由RefSeq的,2013年1月提供]
RPS6KB1基因(以及对应的蛋白质)的细胞分布位置:
RPS6KB1基因的本体(GO)信息:
名称 |
---|
4012 ErbB signaling pathway [PATH:hsa04012] |
4350 TGF-beta signaling pathway [PATH:hsa04350] |
4066 HIF-1 signaling pathway [PATH:hsa04066] |
4151 PI3K-Akt signaling pathway [PATH:hsa04151] |
4152 AMPK signaling pathway [PATH:hsa04152] |
4150 mTOR signaling pathway [PATH:hsa04150] |
4666 Fc gamma R-mediated phagocytosis [PATH:hsa04666] |
4910 Insulin signaling pathway [PATH:hsa04910] |
5231 Choline metabolism in cancer [PATH:hsa05231] |
5205 Proteoglycans in cancer [PATH:hsa05205] |
5221 Acute myeloid leukemia [PATH:hsa05221] |
名称 |
---|
IGF1R signaling cascade |
Insulin receptor signalling cascade |
IRS-mediated signalling |
IRS-related events |
IRS-related events triggered by IGF1R |
mTOR signalling |
mTORC1-mediated signalling |
PI3K Cascade |
PKB-mediated events |
S6K1 signalling |
S6K1-mediated signalling |
Signaling by Insulin receptor |
Signaling by Type 1 Insulin-like Growth Factor 1 Receptor (IGF1R) |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Multiple Sclerosis | 0.122638474 | 2 | 1 | BeFree_GAD_GWASCAT |
Diffuse Large B-Cell Lymphoma | 0.120271442 | 2 | 0 | BeFree_CTD_human |
Atrophic | 0.12 | 1 | 0 | CTD_human |
Ceroid lipofuscinosis, neuronal 1, infantile | 0.12 | 1 | 0 | CTD_human |
Left Ventricular Hypertrophy | 0.12 | 1 | 0 | CTD_human |
Hypertensive disease | 0.12 | 1 | 0 | CTD_human |
Obesity | 0.081357209 | 5 | 0 | BeFree_RGD |
Polycystic Kidney, Autosomal Dominant | 0.08 | 1 | 0 | RGD |
Hypoproteinemia | 0.08 | 1 | 0 | RGD |
Myocardial Infarction | 0.08 | 1 | 0 | RGD |
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