SNX13

This gene encodes a PHOX domain- and RGS domain-containing protein that belongs to the sorting nexin (SNX) family and the regulator of G protein signaling (RGS) family. The PHOX domain is a phosphoinositide binding domain, and the SNX family members are involved in intracellular trafficking. The RGS family members are regulatory molecules that act as GTPase activating proteins for G alpha subunits of heterotrimeric G proteins. The RGS domain of this protein interacts with G alpha(s), accelerates its GTP hydrolysis, and attenuates G alpha(s)-mediated signaling. Overexpression of this protein delayes lysosomal degradation of the epidermal growth factor receptor. Because of its bifunctional role, this protein may link heterotrimeric G protein signaling and vesicular trafficking.

Full Name

Sorting Nexin 13

Function

May be involved in several stages of intracellular trafficking. May play a role in endosome homeostasis (By similarity).
Acts as a GAP for Galphas.

Biological Process

Biological Process intracellular protein transportManual Assertion Based On ExperimentIMP:UniProtKB
Biological Process negative regulation of signal transductionIEA:UniProtKB-KW
Biological Process positive regulation of GTPase activityManual Assertion Based On ExperimentIDA:UniProtKB

Cellular Location

Early endosome membrane