RGS family members share similarity with S. cerevisiae SST2 and C. elegans egl-10 proteins, which contain a characteristic conserved RGS domain. RGS proteins accelerate GTPase activity of G protein alpha-subunits, thereby driving G protein into their inactive GDP-bound form, thus negatively regulating G protein signaling. RGS proteins have been implicated in the fine tuning of a variety of cellular events in response to G protein-coupled receptor activation. The biological function of this gene, however, is unknown. Two transcript variants encoding the same isoform exist.[6]
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Sierra DA, Gilbert DJ, Householder D, et al. (2002). "Evolution of the regulators of G-protein signaling multigene family in mouse and human". Genomics. 79 (2): 177–185. doi:10.1006/geno.2002.6693. PMID11829488.