RGS9
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RGS9-2
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| Location (UCSC) | Chr 17: 65.1 – 65.23 Mb | Chr 11: 109.12 – 109.19 Mb | |||||||
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Regulator of G-protein signalling 9, also known as RGS9, is a human
RGS family, such as RGS9, are signaling proteins that suppress the activity of G proteins by promoting their deactivation.[supplied by OMIM][5]
There are two splice isoforms of RGS9 with quite different properties and patterns of expression. RGS9-1 is mainly found in the eye and is involved in regulation of phototransduction in rod and cone cells of the retina, while RGS9-2 is found in the brain, and regulates dopamine and opioid signaling in the basal ganglia.[6]
RGS9-2 is of particular interest as the most important RGS protein involved in terminating signalling by the
mu opioid receptor (although RGS4 and RGS17 are also involved), and is thought to be important in the development of tolerance to opioid drugs.[7][8][9][10][11][12][13] RGS9-deficient mice exhibit some motor and cognitive difficulties however, so inhibition of this protein is likely to cause similar side effects.[14]
RGS9 is differentially regulated by Guanine nucleotide-binding protein subunit beta-5 (GNB5) via the DEP domain and DEP helical-extension domain in protein stability and membrane anchor association.[15]
References
- ^ a b c GRCh38: Ensembl release 89: ENSG00000108370 - Ensembl, May 2017
- ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000020599 - Ensembl, May 2017
- ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
- ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
- ^ a b "Entrez Gene: RGS9 regulator of G-protein signalling 9".
- PMID 19098104.
- S2CID 23943994.
- PMID 14595021.
- S2CID 40755580.
- PMID 15632124.
- S2CID 23246884.
- PMID 17880927.
- PMID 19211160.
- PMID 18073128.
- PMID 21511947.
Further reading
- Bonaldo MF, Lennon G, Soares MB (1997). "Normalization and subtraction: two approaches to facilitate gene discovery". Genome Res. 6 (9): 791–806. PMID 8889548.
- Cowan CW, Fariss RN, Sokal I, et al. (1998). "High expression levels in cones of RGS9, the predominant GTPase accelerating protein of rods". Proc. Natl. Acad. Sci. U.S.A. 95 (9): 5351–6. PMID 9560279.
- Granneman JG, Zhai Y, Zhu Z, et al. (1998). "Molecular characterization of human and rat RGS 9L, a novel splice variant enriched in dopamine target regions, and chromosomal localization of the RGS 9 gene". Mol. Pharmacol. 54 (4): 687–94. PMID 9765512.
- Zhang K, Howes KA, He W, et al. (2000). "Structure, alternative splicing, and expression of the human RGS9 gene". Gene. 240 (1): 23–34. PMID 10564809.
- Yu H, Bondarenko VA, Yamazaki A (2001). "Inhibition of retinal guanylyl cyclase by the RGS9-1 N-terminus". Biochem. Biophys. Res. Commun. 286 (1): 12–9. PMID 11485301.
- Hu G, Wensel TG (2002). "R9AP, a membrane anchor for the photoreceptor GTPase accelerating protein, RGS9-1". Proc. Natl. Acad. Sci. U.S.A. 99 (15): 9755–60. PMID 12119397.
- Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. PMID 12477932.
- Martemyanov KA, Lishko PV, Calero N, et al. (2003). "The DEP domain determines subcellular targeting of the GTPase activating protein RGS9 in vivo". J. Neurosci. 23 (32): 10175–81. PMID 14614075.
- Nishiguchi KM, Sandberg MA, Kooijman AC, et al. (2004). "Defects in RGS9 or its anchor protein R9AP in patients with slow photoreceptor deactivation". Nature. 427 (6969): 75–8. S2CID 953980.
- Ajit SK, Young KH (2004). "Enhancement of pheromone response by RGS9 and Gbeta5 in yeast". Biochem. Biophys. Res. Commun. 324 (2): 686–91. PMID 15474482.
- Cheng JY, Luu CD, Yong VH, et al. (2007). "Bradyopsia in an Asian man". Arch. Ophthalmol. 125 (8): 1138–40. PMID 17698770.
External links
- Overview of all the structural information available in the PDB for UniProt: O54828 (Mouse Regulator of G-protein signaling 9) at the PDBe-KB.
PDB gallery | |
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![1fqj: CRYSTAL STRUCTURE OF THE HETEROTRIMERIC COMPLEX OF THE RGS DOMAIN OF RGS9, THE GAMMA SUBUNIT OF PHOSPHODIESTERASE AND THE GT/I1 CHIMERA ALPHA SUBUNIT [(RGS9)-(PDEGAMMA)-(GT/I1ALPHA)-(GDP)-(ALF4-)-(MG2+)]](/File:PDB_1fqj_EBI.jpg)
![1fqk: CRYSTAL STRUCTURE OF THE HETERODIMERIC COMPLEX OF THE RGS DOMAIN OF RGS9, AND THE GT/I1 CHIMERA ALPHA SUBUNIT [(RGS9)-(GT/I1ALPHA)-(GDP)-(ALF4-)-(MG2+)]](/File:PDB_1fqk_EBI.jpg)
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