ROCK2(Rho-associated coiled-coil containing protein kinase 2)是一种丝氨酸/苏氨酸蛋白激酶,属于ROCK基因家族(包括ROCK1和ROCK2),该家族成员通过Rho GTP酶信号通路调控细胞骨架重组、细胞迁移、收缩和黏附等过程。ROCK2主要通过磷酸化下游靶蛋白(如肌球蛋白轻链MLC、LIM激酶等)发挥作用,影响平滑肌收缩、血管张力、神经轴突导向和炎症反应等。其表达广泛分布于脑、心脏、血管和免疫细胞中。ROCK2功能异常或突变可能导致过度激活,引发高血压、动脉粥样硬化、神经退行性疾病(如阿尔茨海默病)和癌症转移;而功能缺失则可能影响胚胎发育或导致免疫缺陷。ROCK2过表达会增强细胞迁移和侵袭能力(促进肿瘤转移),同时加剧纤维化疾病(如肺纤维化)和血管痉挛;表达降低则可能改善血管舒张但削弱伤口愈合。ROCK基因家族的共性包括:依赖RhoA激活、具有 coiled-coil(卷曲螺旋)结构域和激酶域,均参与细胞形态调控。目前针对ROCK2的药物(如法舒地尔Fasudil)被用于治疗脑血管痉挛,其抑制剂也在研究用于抗纤维化和抗肿瘤治疗。专业术语解释:Rho GTP酶是调控细胞骨架的小分子开关蛋白;磷酸化是通过添加磷酸基团改变蛋白质活性的过程; coiled-coil是蛋白质中α螺旋相互缠绕的结构模体。
The protein encoded by this gene is a serine/threonine kinase that regulates cytokinesis, smooth muscle contraction, the formation of actin stress fibers and focal adhesions, and the activation of the c-fos serum response element. This protein, which is an isozyme of ROCK1 is a target for the small GTPase Rho. [provided by RefSeq, Jul 2008]
由该基因编码的蛋白质是一种丝氨酸/苏氨酸激酶是调节细胞分裂,平滑肌收缩,肌动蛋白应力纤维和粘着斑的形成,和c-fos血清应答元件的激活。该蛋白质,这是ROCK1的同功酶的小GTP酶的Rho的靶。 [由RefSeq的,2008年7月提供]
ROCK2基因(以及对应的蛋白质)的细胞分布位置:
ROCK2基因的本体(GO)信息:
| 名称 |
|---|
| 4310 Wnt signaling pathway [PATH:hsa04310] |
| 4071 Sphingolipid signaling pathway [PATH:hsa04071] |
| 4024 cAMP signaling pathway [PATH:hsa04024] |
| 4022 cGMP - PKG signaling pathway [PATH:hsa04022] |
| 4810 Regulation of actin cytoskeleton [PATH:hsa04810] |
| 4510 Focal adhesion [PATH:hsa04510] |
| 4611 Platelet activation [PATH:hsa04611] |
| 4670 Leukocyte transendothelial migration [PATH:hsa04670] |
| 4062 Chemokine signaling pathway [PATH:hsa04062] |
| 4921 Oxytocin signaling pathway [PATH:hsa04921] |
| 4270 Vascular smooth muscle contraction [PATH:hsa04270] |
| 4360 Axon guidance [PATH:hsa04360] |
| 5200 Pathways in cancer [PATH:hsa05200] |
| 5205 Proteoglycans in cancer [PATH:hsa05205] |
| 5130 Pathogenic Escherichia coli infection [PATH:hsa05130] |
| 5132 Salmonella infection [PATH:hsa05132] |
| 5131 Shigellosis [PATH:hsa05131] |
| 名称 |
|---|
| Axon guidance |
| Developmental Biology |
| EPH-Ephrin signaling |
| EPHA-mediated growth cone collapse |
| EPHB-mediated forward signaling |
| G alpha (12/13) signalling events |
| GPCR downstream signaling |
| RHO GTPase Effectors |
| RHO GTPases Activate ROCKs |
| Sema4D in semaphorin signaling |
| Sema4D induced cell migration and growth-cone collapse |
| Semaphorin interactions |
| Signaling by GPCR |
| Signaling by Rho GTPases |
| Signaling by VEGF |
| VEGFA-VEGFR2 Pathway |
| 疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
| Left Ventricular Hypertrophy | 0.08 | 1 | 0 | RGD |
| Hypertensive disease | 0.010725648 | 4 | 0 | BeFree_GAD_LHGDN |
| Sudden Cardiac Death | 0.005091382 | 2 | 1 | GAD_LHGDN |
| Malignant neoplasm of breast | 0.003181358 | 3 | 1 | BeFree_GAD |
| Mammary Neoplasms | 0.00272435 | 1 | 0 | LHGDN |
| Liver Cirrhosis | 0.002367032 | 1 | 0 | GAD |
| Hepatopulmonary Syndrome | 0.002367032 | 1 | 0 | GAD |
| HIV Infections | 0.002367032 | 1 | 0 | GAD |
| Neoplasm Metastasis | 0.001085767 | 4 | 1 | BeFree |
| Breast Carcinoma | 0.000814326 | 3 | 1 | BeFree |
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