COLQ

COLQ
Available structures
PDB	Ortholog search: PDBe RCSB
List of PDB id codes
	1VZJ
Identifiers
Aliases	COLQ , EAD, CMS5, collagen-like tail subunit (single strand of homotrimer) of asymmetric acetylcholinesterase, collagen like tail subunit of asymmetric acetylcholinesterase
External IDs	OMIM: 603033 MGI: 1338761 HomoloGene: 10437 GeneCards: COLQ
Gene location (Human)
Chr.	Chromosome 3 (human)
End	15,521,751 bp
Gene location (Mouse)
Chr.	Chromosome 14 (mouse)
End	31,313,300 bp
RNA expression pattern
	Top expressed in
	right uterine tube; ; sural nerve; ; cerebellar hemisphere; ; gastrocnemius muscle; ; left ventricle; ; ascending aorta; ; nucleus accumbens; ; caudate nucleus; ; lymph node; ; biceps brachii;
	Top expressed in
	thymus; ; pons; ; medulla oblongata; ; spinal cord; ; primary motor cortex; ; inferior colliculus; ; choroid plexus; ; heart; ; spleen; ; trigeminal ganglion;
	More reference expression data
	More reference expression data
Gene ontology
Molecular function	protein binding ; extracellular matrix structural constituent ; heparin binding ;
Cellular component	collagen ; neuromuscular junction ; synapse ; synaptic cleft ; extracellular space ; plasma membrane ; cell junction ; basement membrane ; extracellular matrix ; collagen-containing extracellular matrix ;
Biological process	establishment of protein localization to membrane ; regulation of synaptic assembly at neuromuscular junction ; acetylcholine catabolic process in synaptic cleft ; skeletal muscle acetylcholine-gated channel clustering ; neurotransmitter catabolic process ; extracellular matrix organization ;
	Sources:Amigo / QuickGO
Orthologs
	8292
	382864
	ENSG00000206561
	ENSMUSG00000057606
	Q9Y215
	O35348
NM_080544 ; NM_005677 ; NM_080538 ; NM_080539 ; NM_080540 ;
	NM_080541 ; NM_080542 ; NM_080543
	NM_009937
	NP_005668 ; NP_536799 ; NP_536800
	NP_034067
	Wikidata
View/Edit Human	View/Edit Mouse

Last updated March 04, 2023

Acetylcholinesterase collagenic tail peptide also known as AChE Q subunit, acetylcholinesterase-associated collagen, or ColQ is the collagen-tail subunit of acetylcholinesterase found in the neuromuscular junction. In humans it is encoded by the COLQ gene.^[5]^[6]

Function

This gene encodes the subunit of a collagen-like molecule associated with acetylcholinesterase in skeletal muscle. Each molecule is composed of three identical subunits. Each subunit contains a proline-rich attachment domain (PRAD) that binds an acetylcholinesterase tetramer to anchor the catalytic subunit of the enzyme to the basal lamina. Multiple transcript variants encoding different isoforms have been found for this gene.^[6]

Clinical significance

Mutations in this gene are associated with endplate acetylcholinesterase deficiency.^[6]

Related Research Articles

Congenital myasthenic syndrome (CMS) is an inherited neuromuscular disorder caused by defects of several types at the neuromuscular junction. The effects of the disease are similar to Lambert-Eaton Syndrome and myasthenia gravis, the difference being that CMS is not an autoimmune disorder. There are only 600 known family cases of this disorder and it is estimated that its overall frequency in the human population is 1 in 200,000.

Fukutin is a eukaryotic protein necessary for the maintenance of muscle integrity, cortical histogenesis, and normal ocular development. Mutations in the fukutin gene have been shown to result in Fukuyama congenital muscular dystrophy (FCMD) characterised by brain malformation - one of the most common autosomal-recessive disorders in Japan. In humans this protein is encoded by the FCMD gene, located on chromosome 9q31. Human fukutin exhibits a length of 461 amino acids and a predicted molecular mass of 53.7 kDa.

43 kDa receptor-associated protein of the synapse (rapsyn) is a protein that in humans is encoded by the RAPSN gene.

Collagen alpha-1(VI) chain is a protein that in humans is encoded by the COL6A1 gene.

Laminin subunit alpha-2 is a protein that in humans is encoded by the LAMA2 gene.

Acetylcholine receptor subunit epsilon is a protein that in humans is encoded by the CHRNE gene.

Neuronal acetylcholine receptor subunit alpha-1, also known as nAChRα1, is a protein that in humans is encoded by the CHRNA1 gene. The protein encoded by this gene is a subunit of certain nicotinic acetylcholine receptors (nAchR).

Phosphorylase b kinase regulatory subunit alpha, liver isoform is an enzyme that in humans is encoded by the PHKA2 gene.

Ganglioside-induced differentiation-associated protein 1 is a type of protein that in humans is encoded by the GDAP1 gene.

Seipin is a protein that in humans is encoded by the BSCL2 gene.

Prolyl 4-hydroxylase subunit alpha-1 is an enzyme that in humans is encoded by the P4HA1 gene.

Acetylcholine receptor subunit delta is a protein that in humans is encoded by the CHRND gene.

Phosphorylase b kinase regulatory subunit beta is an enzyme that in humans is encoded by the PHKB gene.

Prolyl 4-hydroxylase subunit alpha-2 is an enzyme that in humans is encoded by the P4HA2 gene.

Acetylcholine receptor subunit beta is a protein that in humans is encoded by the CHRNB1 gene.

Para-hydroxybenzoate—polyprenyltransferase, mitochondrial is an enzyme that in humans is encoded by the COQ2 gene.

Dolichyl-P-Man:Man(7)GlcNAc(2)-PP-dolichyl-alpha-1,6-mannosyltransferase is an enzyme that in humans is encoded by the ALG12 gene.

Phosphorylase b kinase regulatory subunit alpha, skeletal muscle isoform is an enzyme that in humans is encoded by the PHKA1 gene. It is the muscle isoform of Phosphorylase kinase (PhK).

60S ribosomal protein L38 is a protein that in humans is encoded by the RPL38 gene.

Ribonuclease H2 subunit A, also known as RNase H2 subunit A, is an enzyme that in humans is encoded by the RNASEH2A gene.

References

1 2 3 GRCh38: Ensembl release 89: ENSG00000206561 - Ensembl, May 2017
1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000057606 - 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.
↑ Ohno K, Brengman J, Tsujino A, Engel AG (Sep 1998). "Human endplate acetylcholinesterase deficiency caused by mutations in the collagen-like tail subunit (ColQ) of the asymmetric enzyme". Proc Natl Acad Sci U S A. 95 (16): 9654–9. Bibcode:1998PNAS...95.9654O. doi: 10.1073/pnas.95.16.9654 . PMC 21394 . PMID 9689136.
1 2 3 "Entrez Gene: COLQ collagen-like tail subunit (single strand of homotrimer) of asymmetric acetylcholinesterase".

External links

Human COLQ genome location and COLQ gene details page in the UCSC Genome Browser .

Donger C, Krejci E, Serradell AP, et al. (1998). "Mutation in the human acetylcholinesterase-associated collagen gene, COLQ, is responsible for congenital myasthenic syndrome with end-plate acetylcholinesterase deficiency (Type Ic)". Am. J. Hum. Genet. 63 (4): 967–75. doi:10.1086/302059. PMC 1377491 . PMID 9758617.
Ohno K, Brengman JM, Felice KJ, et al. (1999). "Congenital end-plate acetylcholinesterase deficiency caused by a nonsense mutation and an A-->G splice-donor-site mutation at position +3 of the collagenlike-tail-subunit gene (COLQ): how does G at position +3 result in aberrant splicing?". Am. J. Hum. Genet. 65 (3): 635–44. doi:10.1086/302551. PMC 1377969 . PMID 10441569.
Altamirano CV, Lockridge O (1999). "Conserved aromatic residues of the C-terminus of human butyrylcholinesterase mediate the association of tetramers". Biochemistry. 38 (40): 13414–22. doi:10.1021/bi991475+. PMID 10529218.
Ohno K, Engel AG, Brengman JM, et al. (2000). "The spectrum of mutations causing end-plate acetylcholinesterase deficiency". Ann. Neurol. 47 (2): 162–70. doi:10.1002/1531-8249(200002)47:2<162::AID-ANA5>3.0.CO;2-Q. PMID 10665486. S2CID 9178923.
Deprez P, Inestrosa NC (2000). "Molecular modeling of the collagen-like tail of asymmetric acetylcholinesterase". Protein Eng. 13 (1): 27–34. doi:10.1093/protein/13.1.27. hdl: 10533/172149 . PMID 10679527.
Shapira YA, Sadeh ME, Bergtraum MP, et al. (2002). "Three novel COLQ mutations and variation of phenotypic expressivity due to G240X". Neurology. 58 (4): 603–9. doi:10.1212/wnl.58.4.603. PMID 11865139. S2CID 43142424.
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.
Ishigaki K, Nicolle D, Krejci E, et al. (2003). "Two novel mutations in the COLQ gene cause endplate acetylcholinesterase deficiency". Neuromuscul. Disord. 13 (3): 236–44. doi:10.1016/s0960-8966(02)00243-2. PMID 12609505. S2CID 19202945.
Hillman RT, Green RE, Brenner SE (2005). "An unappreciated role for RNA surveillance". Genome Biol. 5 (2): R8. doi:10.1186/gb-2004-5-2-r8. PMC 395752 . PMID 14759258.
Cartaud A, Strochlic L, Guerra M, et al. (2004). "MuSK is required for anchoring acetylcholinesterase at the neuromuscular junction". J. Cell Biol. 165 (4): 505–15. doi:10.1083/jcb.200307164. PMC 2172359 . PMID 15159418.
Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The Status, Quality, and Expansion of the NIH Full-Length cDNA Project: The Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928 . PMID 15489334.
Dvir H, Harel M, Bon S, et al. (2005). "The synaptic acetylcholinesterase tetramer assembles around a polyproline II helix". EMBO J. 23 (22): 4394–405. doi:10.1038/sj.emboj.7600425. PMC 526459 . PMID 15526038.
Ting AK, Siow NL, Kong LW, Tsim KW (2006). "Transcriptional regulation of acetylcholinesterase-associated collagen ColQ in fast- and slow-twitch muscle fibers". Chem. Biol. Interact. 157–158: 63–70. doi:10.1016/j.cbi.2005.10.009. PMID 16256971.
Schreiner F, Hoppenz M, Klaeren R, et al. (2007). "Novel COLQ mutation 950delC in synaptic congenital myasthenic syndrome and symptomatic heterozygous relatives". Neuromuscul. Disord. 17 (3): 262–5. doi:10.1016/j.nmd.2006.11.010. PMID 17300939. S2CID 30720410.

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[refGRCh38Ensembl-1] 1 2 3 GRCh38: Ensembl release 89: ENSG00000206561 - Ensembl, May 2017

[refGRCm38Ensembl-2] 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000057606 - Ensembl, May 2017

[3] "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.

[4] "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.

[pmid9689136-5] Ohno K, Brengman J, Tsujino A, Engel AG (Sep 1998). "Human endplate acetylcholinesterase deficiency caused by mutations in the collagen-like tail subunit (ColQ) of the asymmetric enzyme". Proc Natl Acad Sci U S A. 95 (16): 9654–9. Bibcode:1998PNAS...95.9654O. doi: 10.1073/pnas.95.16.9654 . PMC 21394 . PMID 9689136.

[entrez-6] 1 2 3 "Entrez Gene: COLQ collagen-like tail subunit (single strand of homotrimer) of asymmetric acetylcholinesterase".

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