RPS6KB2(核糖体蛋白S6激酶B2,ribosomal protein S6 kinase B2)是一种丝氨酸/苏氨酸蛋白激酶,属于AGC激酶家族的成员,同时也是PI3K/AKT/mTOR信号通路下游的关键效应分子。该基因编码的蛋白(p70S6K)通过磷酸化核糖体蛋白S6(RPS6)调控蛋白质翻译,从而影响细胞生长、增殖和代谢。其主要作用位点包括核糖体、mTOR复合物1(mTORC1)及下游靶蛋白,尤其在响应生长因子、营养和能量信号时被激活。RPS6KB2的功能依赖于mTORC1介导的磷酸化激活,突变可能导致其激酶活性丧失或持续激活,例如致癌突变会促进肿瘤发生,而功能缺失突变则可能影响发育或导致代谢异常。该基因与多种疾病相关,如癌症(乳腺癌、前列腺癌等)、糖尿病和神经退行性疾病,其过度激活常见于肿瘤中,驱动细胞异常增殖和存活。若RPS6KB2过表达,会增强蛋白质合成通路,加速细胞周期进程,并可能抑制自噬(细胞自我降解过程);而表达降低则可能导致生长迟缓或代谢紊乱。RPS6KB2属于p70S6K激酶家族,该家族成员(如RPS6KB1)均通过mTORC1调控蛋白质合成,共性包括响应生长信号、参与细胞大小调控及能量平衡。目前中文术语“核糖体蛋白S6激酶B2”为直译,部分文献也简称为“S6K2”。
This gene encodes a member of the RSK (ribosomal S6 kinase) family of serine/threonine kinases. This kinase contains a kinase catalytic domain and phosphorylates the S6 ribosomal protein and eukaryotic translation initiation factor 4B (eIF4B). Phosphorylation of S6 leads to an increase in protein synthesis and cell proliferation. [provided by RefSeq, Jan 2015]
该基??因编码对RSK(核糖体S6激酶)家族丝氨酸/苏氨酸激酶的成员。这种激酶包含激酶催化结构域和磷酸化S6核糖体蛋白和真核翻译起始因子4B(eIF4B)。 S6的磷酸化导致增加蛋白质合成和细胞增殖。 [由RefSeq的,2015年1月提供]
RPS6KB2基因(以及对应的蛋白质)的细胞分布位置:
RPS6KB2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 |
---|
Adaptive Immune System |
AKT phosphorylates targets in the nucleus |
Constitutive Signaling by AKT1 E17K in Cancer |
DAP12 interactions |
DAP12 signaling |
Disease |
Diseases of signal transduction |
Downstream signal transduction |
Downstream signaling events of B Cell Receptor (BCR) |
Downstream signaling of activated FGFR1 |
Downstream signaling of activated FGFR2 |
Downstream signaling of activated FGFR3 |
Downstream signaling of activated FGFR4 |
Fc epsilon receptor (FCERI) signaling |
GAB1 signalosome |
Immune System |
Innate Immune System |
NGF signalling via TRKA from the plasma membrane |
PI-3K cascade:FGFR1 |
PI-3K cascade:FGFR2 |
PI-3K cascade:FGFR3 |
PI-3K cascade:FGFR4 |
PI3K events in ERBB2 signaling |
PI3K events in ERBB4 signaling |
PI3K/AKT activation |
PI3K/AKT Signaling in Cancer |
PIP3 activates AKT signaling |
Role of LAT2/NTAL/LAB on calcium mobilization |
Signaling by EGFR |
Signaling by ERBB2 |
Signaling by ERBB4 |
Signaling by FGFR |
Signaling by FGFR1 |
Signaling by FGFR2 |
Signaling by FGFR3 |
Signaling by FGFR4 |
Signaling by PDGF |
Signaling by SCF-KIT |
Signaling by the B Cell Receptor (BCR) |
Signalling by NGF |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Mammary Neoplasms | 0.120542884 | 2 | 0 | BeFree_CTD_human |
Rectal Neoplasms | 0.002367032 | 1 | 0 | GAD |
Head and Neck Neoplasms | 0.002367032 | 1 | 0 | GAD |
Neoplasm Recurrence, Local | 0.002367032 | 1 | 0 | GAD |
Neoplasms, Second Primary | 0.002367032 | 1 | 0 | GAD |
Colonic Neoplasms | 0.002367032 | 1 | 0 | GAD |
Malignant neoplasm of breast | 0.000814326 | 3 | 0 | BeFree |
Breast Carcinoma | 0.000814326 | 3 | 0 | BeFree |
Non-Small Cell Lung Carcinoma | 0.000542884 | 2 | 0 | BeFree |
Multiple malignancy | 0.000271442 | 1 | 0 | BeFree |
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