🧬 基因注释：PREX2
官方名称：phosphatidylinositol-3,4,5-trisphosphate dependent Rac exchange factor 2
功能摘要：The protein encoded by this gene belongs to the phosphatidylinositol 3,4,5-trisphosphate (PIP3)-dependent Rac exchanger (PREX) family, which are Dbl-type guanine-nucleotide exchange factors for Rac family small G proteins. Structural domains of this protein include the catalytic diffuse B-cell lymphoma homology and pleckstrin homology (DHPH) domain, two disheveled, EGL-10, and pleckstrin homology (DEP) domains, two PDZ domains, and a C-terminal inositol polyphosphate-4 phosphatase (IP4P) domain that is found in one of the isoforms. This protein facilitates the exchange of GDP for GTP on Rac1, allowing the GTP-bound Rac1 to activate downstream effectors. Studies also show that the pleckstrin homology domain of this protein interacts with the phosphatase and tensin homolog (PTEN) gene product to inhibit PTEN phosphatase activity, thus activating the phosphoinositide-3 kinase (PI3K) signaling pathway. Conversely, the PTEN gene product has also been shown to inhibit the GEF activity of this protein. This gene plays a role in insulin-signaling pathways, and either mutations or overexpression of this gene have been observed in some cancers. [provided by RefSeq, Apr 2016].
- CELF2 置信度: 2.0
- CSTF2T 置信度: 2.0
- GRSF1 置信度: 2.0
- HNRNPA1 置信度: 2.0
- HNRNPL 置信度: 2.0
- HNRNPM 置信度: 2.0
- NOVA1 置信度: 2.0
- PTBP1 置信度: 2.0
- RBFOX2 置信度: 2.0
- RBM10 置信度: 2.0
- RBM20 置信度: 2.0
- ELAVL3 置信度: 1.0
- FUS 置信度: 1.0
- MBNL2 置信度: 1.0
- Mbnl2 置信度: 1.0
- NXF1 置信度: 1.0
- Rbmx 置信度: 1.0
- Rbpms 置信度: 1.0
- SRSF3 置信度: 1.0
- Srsf2 置信度: 1.0
该基因暂无关联疾病记录