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GPR3 P46089

G蛋白偶联受体3 (ACCA孤儿受体)

蛋白质信息 (UniProt)

G蛋白偶联受体3 (ACCA孤儿受体)

P46089

功能描述

组成型活性G蛋白偶联受体,通过激活细胞内信号通路维持高cAMP水平并参与多种过程,包括卵母细胞减数分裂阻滞和神经元发育。产热脂肪细胞的必需激活因子,在无配体情况下通过组成型G(s)偶联活性驱动产热 (PubMed:34048700)。可能被脂质衍生的激动剂如油酰乙醇胺 (OEA)、油酸或1-磷酸鞘氨醇激活,从而激活G(s)/cAMP/PKA信号通路 (PubMed:12220620, PubMed:38376112, PubMed:38287117)。在调节脑功能中发挥潜在作用,包括应激行为反应和神经元中β-淀粉样肽的生成 (By similarity)。通过PKA、ERK和PI3K介导的信号通路刺激小脑颗粒神经元的神经突生长 (By similarity)。 {ECO:0000250|UniProtKB:P35413, ECO:0000269|PubMed:12220620, ECO:0000269|PubMed:19213921, ECO:0000269|PubMed:34048700, ECO:0000269|PubMed:38287117, ECO:0000269|PubMed:38376112}.

组织特异性

Expressed predominantly in the central nervous system, and at low levels in the lung, kidney, testis, ovary and eye. Highly expressed in regions of the brain implicated in the Alzheimer disease.

亚细胞定位

Cell membrane; Multi-pass membrane protein.

关键词

3D-structure Cell membrane Disulfide bond G-protein coupled receptor Glycoprotein Lipoprotein Membrane Palmitate Phosphoprotein Proteomics identification