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SH3BP5 O60239

SH3结构域结合蛋白5 (SH3BP-5) (优先与BTK结合的SH3结构域结合蛋白)

蛋白质信息 (UniProt)

SH3结构域结合蛋白5 (SH3BP-5) (优先与BTK结合的SH3结构域结合蛋白)

O60239

功能描述

作为鸟嘌呤核苷酸交换因子 (GEF) 发挥作用,对 RAB11A 和 RAB25 具有特异性 (PubMed:26506309, PubMed:30217979)。抑制 BTK 的自身磷酸化和反式磷酸化活性。在 B 细胞的 BTK 相关胞质信号传导中发挥负调控作用。可能参与 BCR 诱导的细胞凋亡。 {ECO:0000269|PubMed:10339589, ECO:0000269|PubMed:26506309, ECO:0000269|PubMed:30217979, ECO:0000269|PubMed:9571151}。

组织特异性

Highly expressed in testis and ovaries. It is also expressed in a variety of tissues including spleen, lymph node, thymus, bone marrow, fetal liver, colon, small intestine and prostate.

亚细胞定位

Cytoplasmic vesicle membrane

关键词

3D-structure Alternative splicing Coiled coil Cytoplasmic vesicle Guanine-nucleotide releasing factor Membrane Mitochondrion Phosphoprotein Proteomics identification Reference proteome