Protein-coding gene in the species Homo sapiens
Acetylcholine receptor subunit gamma is a protein that in humans is encoded by the CHRNG gene .[ 5]
For background information on the acetylcholine receptor (AChR), see CHRNA1 (MIM 100690). Two forms of AChR are found in mammalian skeletal muscle cells . The mature form is predominant in innervated adult muscle and the embryonic form is present in fetal and denervated muscle. Embryonic and mature AChR differ by the replacement of the gamma subunit in the pentameric glycoprotein complex by its isoform , the epsilon subunit (MIM 100725), which is specific to the mature AChR subtype. This switch is mediated by ARIA (acetylcholine receptor-inducing activity; MIM 142445).[supplied by OMIM][ 5]
Clinical significance Mutations in CHRNG are known to cause the following conditions:[ 6]
Multiple pterygium syndrome, lethal type (LMPS);
Multiple pterygium syndrome, Escobar variant (EVMPS).
References
External links
Further reading
Morgan NV, Brueton LA, Cox P, et al. (2006). "Mutations in the embryonal subunit of the acetylcholine receptor (CHRNG) cause lethal and Escobar variants of multiple pterygium syndrome" . Am. J. Hum. Genet . 79 (2): 390–5. doi :10.1086/506256 . PMC 1559492 . PMID 16826531 .
Hoffmann K, Muller JS, Stricker S, et al. (2006). "Escobar syndrome is a prenatal myasthenia caused by disruption of the acetylcholine receptor fetal gamma subunit" . Am. J. Hum. Genet . 79 (2): 303–12. doi :10.1086/506257 . PMC 1559482 . PMID 16826520 .
Gallego S, Llort A, Roma J, et al. (2007). "Detection of bone marrow micrometastasis and microcirculating disease in rhabdomyosarcoma by a real-time RT-PCR assay". J. Cancer Res. Clin. Oncol . 132 (6): 356–62. doi :10.1007/s00432-006-0083-y . PMID 16435141 . S2CID 21561563 .
Hillier LW, Graves TA, Fulton RS, et al. (2005). "Generation and annotation of the DNA sequences of human chromosomes 2 and 4" . Nature . 434 (7034): 724–31. Bibcode :2005Natur.434..724H . doi :10.1038/nature03466 . PMID 15815621 .
Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs" . Nat. Genet . 36 (1): 40–5. doi :10.1038/ng1285 . PMID 14702039 .
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. Bibcode :2002PNAS...9916899M . doi :10.1073/pnas.242603899 . PMC 139241 . PMID 12477932 .
Vernet-der Garabedian B, Lacokova M, Eymard B, et al. (1994). "Association of neonatal myasthenia gravis with antibodies against the fetal acetylcholine receptor" . J. Clin. Invest . 94 (2): 555–9. doi :10.1172/JCI117369 . PMC 296130 . PMID 8040310 .
Kreienkamp HJ, Maeda RK, Sine SM, Taylor P (1995). "Intersubunit contacts governing assembly of the mammalian nicotinic acetylcholine receptor" . Neuron . 14 (3): 635–44. doi :10.1016/0896-6273(95)90320-8 . PMID 7695910 .
Beeson D, Brydson M, Betty M, et al. (1993). "Primary structure of the human muscle acetylcholine receptor. cDNA cloning of the gamma and epsilon subunits". Eur. J. Biochem . 215 (2): 229–38. doi :10.1111/j.1432-1033.1993.tb18027.x . PMID 7688301 .
Shibahara S, Kubo T, Perski HJ, et al. (1985). "Cloning and sequence analysis of human genomic DNA encoding gamma subunit precursor of muscle acetylcholine receptor" . Eur. J. Biochem . 146 (1): 15–22. doi :10.1111/j.1432-1033.1985.tb08614.x . PMID 3967651 .
Cohen-Haguenauer O, Barton PJ, Buonanno A, et al. (1990). "Localization of the acetylcholine receptor gamma subunit gene to human chromosome 2q32----qter". Cytogenet. Cell Genet . 52 (3–4): 124–7. doi :10.1159/000132860 . PMID 2630182 .
Schurr E, Skamene E, Morgan K, et al. (1991). "Mapping of Col3a1 and Col6a3 to proximal murine chromosome 1 identifies conserved linkage of structural protein genes between murine chromosome 1 and human chromosome 2q". Genomics . 8 (3): 477–86. doi :10.1016/0888-7543(90)90034-R . PMID 1981051 .
This article incorporates text from the United States National Library of Medicine , which is in the public domain .
mAChRs Tooltip Muscarinic acetylcholine receptors
Agonists Antagonists
3-Quinuclidinyl benzilate
4-DAMP
Aclidinium bromide (+formoterol )
Abediterol
AF-DX 250
AF-DX 384
Ambutonium bromide
Anisodamine
Anisodine
Antihistamines (first-generation) (e.g., brompheniramine , buclizine , captodiame , chlorphenamine (chlorpheniramine) , cinnarizine , clemastine , cyproheptadine , dimenhydrinate , dimetindene , diphenhydramine , doxylamine , meclizine , mequitazine , perlapine , phenindamine , pheniramine , phenyltoloxamine , promethazine , propiomazine , triprolidine )
AQ-RA 741
Atropine
Atropine methonitrate
Atypical antipsychotics (e.g., clozapine , fluperlapine , olanzapine (+fluoxetine ), rilapine , quetiapine , tenilapine , zotepine )
Benactyzine
Benzatropine (benztropine)
Benzilone
Benzilylcholine mustard
Benzydamine
Bevonium
BIBN 99
Biperiden
Bornaprine
Camylofin
CAR-226,086
CAR-301,060
CAR-302,196
CAR-302,282
CAR-302,368
CAR-302,537
CAR-302,668
Caramiphen
Cimetropium bromide
Clidinium bromide
Cloperastine
CS-27349
Cyclobenzaprine
Cyclopentolate
Darifenacin
DAU-5884
Desfesoterodine
Dexetimide
DIBD
Dicycloverine (dicyclomine)
Dihexyverine
Difemerine
Diphemanil metilsulfate
Ditran
Drofenine
EA-3167
EA-3443
EA-3580
EA-3834
Emepronium bromide
Etanautine
Etybenzatropine (ethybenztropine)
Fenpiverinium
Fentonium bromide
Fesoterodine
Flavoxate
Glycopyrronium bromide (+beclometasone/formoterol , +indacaterol , +neostigmine )
Hexahydrodifenidol
Hexahydrosiladifenidol
Hexbutinol
Hexocyclium
Himbacine
HL-031,120
Homatropine
Imidafenacin
Ipratropium bromide (+salbutamol )
Isopropamide
J-104,129
Hyoscyamine
Mamba toxin 3
Mamba toxin 7
Mazaticol
Mebeverine
Meladrazine
Mepenzolate
Methantheline
Methoctramine
Methylatropine
Methylhomatropine
Methylscopolamine
Metixene
Muscarinic toxin 7
N-Ethyl-3-piperidyl benzilate
N-Methyl-3-piperidyl benzilate
Nefopam
Octatropine methylbromide (anisotropine methylbromide)
Orphenadrine
Otenzepad (AF-DX 116)
Otilonium bromide
Oxapium iodide
Oxitropium bromide
Oxybutynin
Oxyphencyclimine
Oxyphenonium bromide
PBID
PD-102,807
PD-0298029
Penthienate
Pethidine
pFHHSiD
Phenglutarimide
Phenyltoloxamine
Pipenzolate bromide
Piperidolate
Pirenzepine
Piroheptine
Pizotifen
Poldine
Pridinol
Prifinium bromide
Procyclidine
Profenamine (ethopropazine)
Propantheline bromide
Propiverine
Quinidine
3-Quinuclidinyl thiochromane-4-carboxylate
Revefenacin
Rociverine
RU-47,213
SCH-57,790
SCH-72,788
SCH-217,443
Scopolamine (hyoscine)
Scopolamine butylbromide (hyoscine butylbromide)
Silahexacyclium
Sofpironium bromide
Solifenacin
SSRIs Tooltip Selective serotonin reuptake inhibitors (e.g., femoxetine , paroxetine )
Telenzepine
Terodiline
Tetracyclic antidepressants (e.g., amoxapine , maprotiline , mianserin , mirtazapine )
Tiemonium iodide
Timepidium bromide
Tiotropium bromide
Tiquizium bromide
Tofenacin
Tolterodine
Tricyclic antidepressants (e.g., amitriptyline (+perphenazine ), amitriptylinoxide , butriptyline , cidoxepin , clomipramine , desipramine , desmethyldesipramine , dibenzepin , dosulepin (dothiepin) , doxepin , imipramine , lofepramine , nitroxazepine , northiaden (desmethyldosulepin) , nortriptyline , protriptyline , quinupramine , trimipramine )
Tridihexethyl
Trihexyphenidyl
Trimebutine
Tripitamine (tripitramine)
Tropacine
Tropatepine
Tropicamide
Trospium chloride
Typical antipsychotics (e.g., chlorpromazine , chlorprothixene , cyamemazine (cyamepromazine) , loxapine , mesoridazine , thioridazine )
Umeclidinium bromide (+vilanterol )
WIN-2299
Xanomeline
Zamifenacin
Precursors (and prodrugs )
nAChRs Tooltip Nicotinic acetylcholine receptors
Agonists (and PAMs Tooltip positive allosteric modulators )
5-HIAA
6-Chloronicotine
A-84,543
A-366,833
A-582,941
A-867,744
ABT-202
ABT-418
ABT-560
ABT-894
Acetylcholine
Altinicline
Anabasine
Anatabine
Anatoxin-a
AR-R17779
Bephenium hydroxynaphthoate
Butinoline
Butyrylcholine
Carbachol
Choline
Choline m-bromophenyl ether
Cotinine
Cytisine
Decamethonium
Desformylflustrabromine
Dianicline
Dimethylphenylpiperazinium
Epibatidine
Epiboxidine
Ethanol (alcohol)
Ethoxysebacylcholine
EVP-4473
EVP-6124
Galantamine
GTS-21
Ispronicline
Ivermectin
JNJ-39393406
Levamisole
Lobeline
MEM-63,908 (RG-3487)
Morantel
Nicotine (tobacco )
NS-1738
PHA-543,613
PHA-709,829
PNU-120,596
PNU-282,987
Pozanicline
Pyrantel
Rivanicline
RJR-2429
Sazetidine A
SB-206553
Sebacylcholine
SIB-1508Y
SIB-1553A
SSR-180,711
Suberyldicholine
Suxamethonium (succinylcholine)
Suxethonium (succinyldicholine)
TC-1698
TC-1734
TC-1827
TC-2216
TC-5214
TC-5619
TC-6683
Tebanicline
Tribendimidine
Tropisetron
UB-165
Varenicline
WAY-317,538
XY-4083
Antagonists (and NAMs Tooltip negative allosteric modulators )
Precursors (and prodrugs )