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TCHP Q9BT92

丝状结合蛋白 (Protein TCHP) (具有抑癌活性的线粒体蛋白) (Mitostatin) (肿瘤抑制蛋白)

蛋白质信息 (UniProt)

丝状结合蛋白 (Protein TCHP) (具有抑癌活性的线粒体蛋白) (Mitostatin) (肿瘤抑制蛋白)

Q9BT92

功能描述

肿瘤抑制因子,在细胞应激期间具有抑制细胞生长和促凋亡的能力。通过抑制HSPB1的磷酸化以下调HSPB1,从而抑制膀胱癌和前列腺癌细胞的细胞生长。可能作为细胞角蛋白丝在细胞边缘的“加帽”或“分支”蛋白。可能主要在单层上皮细胞的顶端或边缘区域调节K8/K18丝和桥粒的组织(PubMed:15731013, PubMed:18931701)。是纤毛发生的负调控因子(PubMed:25270598)。 {ECO:0000269|PubMed:15731013, ECO:0000269|PubMed:18931701, ECO:0000269|PubMed:25270598}。

组织特异性

Expressed at high levels in normal urothelial and breast epithelial cells. Also expressed in the smooth muscle and endothelial cells. Reduced expression seen in advanced bladder and breast carcinomas (at protein level). Ubiquitous. Expressed at highest levels in the heart, skeletal muscle, kidney, liver and testis.

亚细胞定位

Cytoplasm, cytoskeleton

关键词

Apoptosis Cell junction Cell membrane Cilium biogenesis/degradation Coiled coil Cytoplasm Cytoskeleton Isopeptide bond Membrane Mitochondrion