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AQP4 P55087

水通道蛋白-4 (AQP-4) (汞不敏感水通道) (MIWC) (WCH4)

蛋白质信息 (UniProt)

水通道蛋白-4 (AQP-4) (汞不敏感水通道) (MIWC) (WCH4)

P55087

功能描述

形成水特异性通道 (PubMed:19383790, PubMed:7559426, PubMed:8601457)。在脑水平衡中起重要作用 (PubMed:37143309)。参与淋巴系统的溶质运输,是跨血脑界面正常水交换速率所必需的。是脑脊液沿围绕穿通动脉的血管周围间隙正常流入大脑皮层和实质,以及间质液沿静脉旁引流途径正常引流所必需的。因此,是大脑间质液中溶质(包括源自APP的可溶性β-淀粉样肽)正常清除所必需的。在尿液水平衡和尿液浓缩能力中起冗余作用 (By similarity)。 {ECO:0000250|UniProtKB:P55088, ECO:0000269|PubMed:19383790, ECO:0000269|PubMed:37143309, ECO:0000269|PubMed:7559426, ECO:0000269|PubMed:8601457}。

组织特异性

Detected in skeletal muscle (PubMed:29055082). Detected in stomach, along the glandular base region of the fundic gland (at protein level) (PubMed:8601457). Detected in brain, lung and skeletal muscle, and at much lower levels in heart and ovary (PubMed:7559426, PubMed:8601457).

亚细胞定位

Cell membrane

关键词

3D-structure Alternative splicing Cell membrane Cell projection Disease variant Endosome Glycoprotein Lipoprotein Membrane Palmitate