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KRT17 Q04695

I型细胞骨架角蛋白17 (39.1) (细胞角蛋白-17) (CK-17) (角蛋白-17) (K17)

蛋白质信息 (UniProt)

I型细胞骨架角蛋白17 (39.1) (细胞角蛋白-17) (CK-17) (角蛋白-17) (K17)

Q04695

功能描述

参与多种皮肤附属器形成和维持的I型角蛋白,特别是在决定毛发的形状和方向上起作用 (By similarity)。毛囊的正确生长所必需的,特别是对于生长期(生长)状态的维持 (By similarity)。在毛发周期的特定背景下调节TNF的功能。通过结合接头蛋白SFN并刺激Akt/mTOR通路来调节蛋白质合成和上皮细胞生长 (By similarity)。参与组织修复。可能是复层上皮中基底细胞分化的标志物,因此指示某种类型的上皮“干细胞”。通过作为皮肤免疫反应的调节因子,充当上皮增殖的促进剂:促进Th1/Th17主导的免疫环境,有助于基底样皮肤肿瘤的发展 (By similarity)。可能在银屑病的免疫发病机制中作为自身抗原,某些肽区域是自身反应性T细胞的主要靶点,从而引起其增殖。 {ECO:0000250|UniProtKB:Q9QWL7, ECO:0000269|PubMed:10844551, ECO:0000269|PubMed:15795121, ECO:0000269|PubMed:16713453}。

组织特异性

Expressed in the outer root sheath and medulla region of hair follicle specifically from eyebrow and beard, digital pulp, nail matrix and nail bed epithelium, mucosal stratified squamous epithelia and in basal cells of oral epithelium, palmoplantar epidermis and sweat and mammary glands. Also expressed in myoepithelium of prostate, basal layer of urinary bladder, cambial cells of sebaceous gland and in exocervix (at protein level).

亚细胞定位

Cytoplasm

关键词

Coiled coil Cytoplasm Disease variant Ectodermal dysplasia Intermediate filament Isopeptide bond Keratin Palmoplantar keratoderma Phosphoprotein Proteomics identification