RGS17 (Regulator Of G Protein Signaling 17): RGS17 is a gene that encodes a protein from the regulator of G protein signaling (RGS) family. These proteins help control G protein-coupled receptor (GPCR) signaling by speeding up the conversion of GTP to GDP. RGS17 may influence multiple GPCR-regulated pathways, impacting a variety of physiological processes.