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 delays lysosomal degradation of the epidermal growth factor receptor. Because of its bifunctional role, this protein may link heterotrimeric G protein signaling and vesicular trafficking.[6]
Worby CA, Dixon JE (December 2002). "Sorting out the cellular functions of sorting nexins". Nature Reviews. Molecular Cell Biology. 3 (12): 919–31. doi:10.1038/nrm974. PMID12461558. S2CID36361630.
Kosan C, Kunz J (2003). "Identification and characterisation of the gene TWIST NEIGHBOR (TWISTNB) located in the microdeletion syndrome 7p21 region". Cytogenetic and Genome Research. 97 (3–4): 167–70. doi:10.1159/000066618. PMID12438708. S2CID27223779.
