
Health Dictionary
Reliable, easy-to-read patient information on common medical conditions β written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
MAS1
Introduction
MAS proto-oncogene, or MAS1 proto-oncogene, G protein-coupled receptor (MRGA,MAS,MGRA””), is a protein that in humans is encoded by the MAS1 gene.[1]
The structure of the MAS1 product indicates that it belongs to the class of receptors that are coupled to GTP-binding proteins and share a conserved structural motif, which is described as a ‘7-transmembrane segment’ following the prediction that these hydrophobic segments form membrane-spanning alpha-helices. The MAS1 protein may be a receptor that, when activated, modulates a critical component in a growth-regulating pathway to bring about oncogenic effects.[1]
Agonists of the receptor include angiotensin-(1-7). Antagonist include A-779 (angiotensin-1-7 with c-terminal proline substituted for D-Ala), or D-Pro (angiotensin-1-7 with c-terminal proline submitted for D-proline).
Mas1 proto-oncogene (MAS1, MGRA) is not to be confused with the MAS-related G-protein coupled receptor, a recently believed to be activated by the ligand alamandine (generated by catalysis of Ang A via ACE2 or directly from Ang-(1-7)).
Further reading
Further reading
- Hanley MR (1992). “Molecular and cell biology of angiotensin receptors”. Journal of Cardiovascular Pharmacology. 18 Suppl 2: S7β13. doi:10.1097/00005344-199106182-00003. PMIDΒ 1725048.
- Hanley MR, Cheung WT, Hawkins P, Poyner D, Benton HP, Blair L, Jackson TR, Goedert M (1990). “The mas oncogene as a neural peptide receptor: expression, regulation and mechanism of action”. Ciba Foundation Symposium. 150: 23β38, discussion 38β46. PMIDΒ 2197067.
- Rabin M, Birnbaum D, Young D, Birchmeier C, Wigler M, Ruddle FH (Jul 1987). “Human ros1 and mas1 oncogenes located in regions of chromosome 6 associated with tumor-specific rearrangements”. Oncogene Research. 1 (2): 169β78. PMIDΒ 3329713.
- Jackson TR, Blair LA, Marshall J, Goedert M, Hanley MR (Sep 1988). “The mas oncogene encodes an angiotensin receptor”. Nature. 335 (6189): 437β40. doi:10.1038/335437a0. PMIDΒ 3419518.
- Young D, Waitches G, Birchmeier C, Fasano O, Wigler M (Jun 1986). “Isolation and characterization of a new cellular oncogene encoding a protein with multiple potential transmembrane domains”. Cell. 45 (5): 711β9. doi:10.1016/0092-8674(86)90785-3. PMIDΒ 3708691.
- Riesewijk AM, Schepens MT, Mariman EM, Ropers HH, Kalscheuer VM (Jul 1996). “The MAS proto-oncogene is not imprinted in humans”. Genomics. 35 (2): 380β2. doi:10.1006/geno.1996.0372. PMIDΒ 8661154.
- Xu X, Quiambao AB, Roveri L, Pardue MT, Marx JL, RΓΆhlich P, Peachey NS, Al-Ubaidi MR (May 2000). “Degeneration of cone photoreceptors induced by expression of the Mas1 protooncogene”. Experimental Neurology. 163 (1): 207β19. doi:10.1006/exnr.2000.7370. PMIDΒ 10785460.
- Alenina N, Baranova T, Smirnow E, Bader M, Lippoldt A, Patkin E, Walther T (May 2002). “Cell type-specific expression of the Mas proto-oncogene in testis”. The Journal of Histochemistry and Cytochemistry. 50 (5): 691β6. doi:10.1177/002215540205000510. PMIDΒ 11967280.
- Santos RA, Simoes e Silva AC, Maric C, Silva DM, Machado RP, de Buhr I, Heringer-Walther S, Pinheiro SV, Lopes MT, Bader M, Mendes EP, Lemos VS, Campagnole-Santos MJ, Schultheiss HP, Speth R, Walther T (Jul 2003). “Angiotensin-(1-7) is an endogenous ligand for the G protein-coupled receptor Mas”. Proceedings of the National Academy of Sciences of the United States of America. 100 (14): 8258β63. doi:10.1073/pnas.1432869100. PMCΒ 166216. PMIDΒ 12829792.
- Canals M, Jenkins L, Kellett E, Milligan G (Jun 2006). “Up-regulation of the angiotensin II type 1 receptor by the MAS proto-oncogene is due to constitutive activation of Gq/G11 by MAS”. The Journal of Biological Chemistry. 281 (24): 16757β67. doi:10.1074/jbc.M601121200. PMIDΒ 16611642.
This article incorporates text from the United States National Library of Medicine, which is in the public domain.
