cholinergic receptor nicotinic gamma subunit
Last updated 18 Aug 2020
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The CHRNG gene provides instructions for making the gamma (γ) protein component (subunit) of the acetylcholine receptor (AChR) protein. The AChR protein is found in the membrane of skeletal muscle cells and is critical for signaling between nerve and muscle cells. Signaling between these cells is necessary for movement. The AChR protein consists of five subunits, each of which is produced from a different gene. The subunits are assembled into the AChR protein in the endoplasmic reticulum, a cell structure involved in protein processing and transport, before being transported to the cell membrane. The γ subunit is found only in the fetal AChR protein. At about the thirty-third week of pregnancy, the γ subunit is replaced by the epsilon (ε) subunit, which is produced by the CHRNE gene, to form the adult AChR protein.
Normal function
The CHRNG gene provides instructions for making the gamma (γ) protein component (subunit) of the acetylcholine receptor (AChR) protein. The AChR protein is found in the membrane of skeletal muscle cells and is critical for signaling between nerve and muscle cells. Signaling between these cells is necessary for movement. The AChR protein consists of five subunits, each of which is produced from a different gene. The subunits are assembled into the AChR protein in the endoplasmic reticulum, a cell structure involved in protein processing and transport, before being transported to the cell membrane. The γ subunit is found only in the fetal AChR protein. At about the thirty-third week of pregnancy, the γ subunit is replaced by the epsilon (ε) subunit, which is produced by the CHRNE gene, to form the adult AChR protein.
Conditions referring to this gene or chromosome
Other names
acetylcholine gamma muscle receptor subunit
acetylcholine receptor subunit gamma
acetylcholine receptor, muscle, gamma subunit
ACHG_HUMAN
ACHRG
cholinergic gamma nicotinic receptor
cholinergic receptor, nicotinic gamma
cholinergic receptor, nicotinic, gamma
cholinergic receptor, nicotinic, gamma (muscle)
cholinergic receptor, nicotinic, gamma polypeptide
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Further reading and references
- cholinergic receptor nicotinic gamma subunit; MedlinePlus, National Library of Medicine.
- Hoffmann K, Muller JS, Stricker S, Megarbane A, Rajab A, Lindner TH, Cohen M, Chouery E, Adaimy L, Ghanem I, Delague V, Boltshauser E, Talim B, Horvath R, Robinson PN, Lochmuller H, Hubner C, Mundlos S. Escobar syndrome is a prenatal myasthenia caused by disruption of the acetylcholine receptor fetal gamma subunit. Am J Hum Genet. 2006 Aug;79(2):303-12. doi: 10.1086/506257. Epub 2006 Jun 20.
- Michalk A, Stricker S, Becker J, Rupps R, Pantzar T, Miertus J, Botta G, Naretto VG, Janetzki C, Yaqoob N, Ott CE, Seelow D, Wieczorek D, Fiebig B, Wirth B, Hoopmann M, Walther M, Korber F, Blankenburg M, Mundlos S, Heller R, Hoffmann K. Acetylcholine receptor pathway mutations explain various fetal akinesia deformation sequence disorders. Am J Hum Genet. 2008 Feb;82(2):464-76. doi: 10.1016/j.ajhg.2007.11.006.
- Morgan NV, Brueton LA, Cox P, Greally MT, Tolmie J, Pasha S, Aligianis IA, van Bokhoven H, Marton T, Al-Gazali L, Morton JE, Oley C, Johnson CA, Trembath RC, Brunner HG, Maher ER. Mutations in the embryonal subunit of the acetylcholine receptor (CHRNG) cause lethal and Escobar variants of multiple pterygium syndrome. Am J Hum Genet. 2006 Aug;79(2):390-5. doi: 10.1086/506256. Epub 2006 Jun 20.
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