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REG3A Q06141

再生胰岛衍生蛋白3-α (REG-3-alpha) (肝肠胰腺蛋白) (HIP/PAP) (人前胰岛肽) (HIP) (胰腺炎相关蛋白1) (再生胰岛衍生蛋白III-α) (Reg III-alpha) [切割为:再生胰岛衍生蛋白3-α 16.5 kDa形式;再生胰岛衍生蛋白3-α 15 kDa形式]

蛋白质信息 (UniProt)

再生胰岛衍生蛋白3-α (REG-3-alpha) (肝肠胰腺蛋白) (HIP/PAP) (人前胰岛肽) (HIP) (胰腺炎相关蛋白1) (再生胰岛衍生蛋白III-α) (Reg III-alpha) [切割为:再生胰岛衍生蛋白3-α 16.5 kDa形式;再生胰岛衍生蛋白3-α 15 kDa形式]

Q06141

功能描述

[Regenerating islet-derived protein 3-alpha 15 kDa form]: 杀菌性C-type lectin,仅作用于革兰氏阳性细菌,并通过结合肽聚糖表面暴露的碳水化合物部分介导细菌杀伤 (PubMed:16931762)。结合膜磷脂并通过形成六聚体膜透化寡聚孔杀死细菌 (PubMed:24256734)。 {ECO:0000269|PubMed:16931762, ECO:0000269|PubMed:24256734}.; FUNCTION: 作为一种激素响应不同的刺激,如抗炎信号(例如IL17A)或肠道微生物组。由不同细胞类型分泌,激活其受体EXTL3并诱导细胞特异性信号通路 (PubMed:19158046, PubMed:22727489, PubMed:27830702, PubMed:34099862)。在角质形成细胞中由IL17A诱导,在皮肤损伤后通过激活EXTL3-PI3K-AKT信号通路调节角质形成细胞的增殖和分化 (PubMed:22727489)。同时,通过抑制炎性细胞因子(如IL6和TNF)抑制皮肤炎症 (PubMed:27830702)。在胰腺中,能够通透β细胞膜并刺激其增殖 (PubMed:19158046)。 {ECO:0000269|PubMed:19158046, ECO:0000269|PubMed:22727489, ECO:0000269|PubMed:27830702, ECO:0000269|PubMed:34099862}.; FUNCTION: [Regenerating islet-derived protein 3-alpha 16.5 kDa form]: 具有抑菌活性。 {ECO:0000305|PubMed:24256734}.

组织特异性

Expressed by keratinocytes (PubMed:27830702). Highly expressed in epidermal keratinocytes of psoriasis patients (at protein level) (PubMed:22727489). Constitutively expressed in intestine. Low expression is found in healthy pancreas. Overexpressed during the acute phase of pancreatitis and in some patients with chronic pancreatitis (PubMed:1469087).

亚细胞定位

Secreted

关键词

3D-structure Acute phase Antimicrobial Direct protein sequencing Disulfide bond Inflammatory response Lectin Proteomics identification Reference proteome Secreted