RGS6 (Regulator of G Protein Signaling 6): RGS6 is part of the RGS family and plays a vital role in managing G protein-coupled receptor (GPCR) signaling pathways. It speeds up the GTPase activity of G protein α subunits, effectively shutting off GPCR signaling and serving as a key regulator of signal transduction. This regulation is critical for various physiological functions, including sensory perception, cardiovascular regulation, and central nervous system activity. By precisely adjusting GPCR signaling, RGS6 helps control cellular responses to external signals.