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ARHGEF40 Q8TER5

Rho鸟嘌呤核苷酸交换因子40 (Protein SOLO) (Scambio) (Sabi)

蛋白质信息 (UniProt)

Rho鸟嘌呤核苷酸交换因子40 (Protein SOLO) (Scambio) (Sabi)

Q8TER5

功能描述

作为RHOA和RHOC的鸟嘌呤核苷酸交换因子(GEF) (PubMed:15107133, PubMed:26823019)。通过激活RHOA/ROCK信号通路,促进肌动蛋白应力纤维形成、力诱导的应力纤维增强以及KRT8/KRT18网络的组装,该过程由N端KRT18结合介导 (PubMed:26823019, PubMed:30929300)。通过介导KRT18丝状体的组织和取向,调节上皮小管适当伸长形态的形成或维持 (By similarity)。促进RHOA依赖性的、细胞间接触介导的内皮细胞及其肌动蛋白应力纤维在响应力传导时的重定向 (PubMed:25795300)。通过作为连接蛋白将角蛋白丝锚定到半桥粒,正向调节半桥粒的形成 (PubMed:29672603)。也是JUP定位于细胞间粘附连接所必需的 (PubMed:26823019)。 {ECO:0000250|UniProtKB:A0A8I3PMN2, ECO:0000269|PubMed:15107133, ECO:0000269|PubMed:25795300, ECO:0000269|PubMed:26823019, ECO:0000269|PubMed:29672603, ECO:0000269|PubMed:30929300}。

组织特异性

Expressed at higher level in the central nervous system and skeletal muscle and greater abundance in fetal than adult brain (at protein level).

亚细胞定位

Cytoplasm

关键词

Alternative splicing Cell junction Coiled coil Cytoplasm Cytoskeleton Deafness Disease variant Guanine-nucleotide releasing factor Phosphoprotein Proteomics identification