Biology:RGS1

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A representation of the 3D structure of the protein myoglobin showing turquoise α-helices.
Generic protein structure example

Regulator of G-protein signaling 1 is a protein that in humans is encoded by the RGS1 gene.[1][2][3]

This gene encodes a member of the regulator of G-protein signaling family. This protein is located on the cytosolic side of the plasma membrane and contains a conserved, 120 amino acid motif called the RGS domain. The protein attenuates the signalling activity of G-proteins by binding to activated, GTP-bound G alpha subunits and acting as a GTPase activating protein (GAP), increasing the rate of conversion of the GTP to GDP. This hydrolysis allows the G alpha subunits to bind G beta/gamma subunit heterodimers, forming inactive G-protein heterotrimers, thereby terminating the signal.[3]

References

  1. "A B cell specific immediate early human gene is located on chromosome band 1q31 and encodes an alpha helical basic phosphoprotein". Biochim Biophys Acta 1216 (2): 314–6. Jan 1994. doi:10.1016/0167-4781(93)90163-8. PMID 8241276. 
  2. "Inhibition of G-protein-mediated MAP kinase activation by a new mammalian gene family". Nature 379 (6567): 742–6. May 1996. doi:10.1038/379742a0. PMID 8602223. Bibcode1996Natur.379..742D. https://zenodo.org/record/1233178. 
  3. 3.0 3.1 "Entrez Gene: RGS1 regulator of G-protein signalling 1". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=5996. 

Further reading