COLQ Antibody – Rabbit Polyclonal

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. Mutations in this gene are associated with endplate acetylcholinesterase deficiency. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

COLQ: Anchors the catalytic subunits of asymmetric AChE to the synaptic basal lamina. Defects in COLQ are the cause of congenital myasthenic syndrome Engel type (CMSE); also known as end-plate acetylcholinesterase deficiency or congenital myasthenic syndrome type IC (CMS-IC). CMSE is a rare autosomal recessive congenital myasthenic syndrome characterized by onset during childhood, generalized weakness, abnormal fatigability on exertion, refrectoriness to acetylcholinesterase drugs, decremental electromyographic response and morphological abnormalities of the neuromuscular junctions. Belongs to the COLQ family. 8 isoforms of the human protein are produced by alternative splicing.

Protein type: Extracellular matrix

Chromosomal Location of Human Ortholog: 3p25

Cellular Component: extracellular space; collagen; synapse; basal lamina; cell junction

Molecular Function: protein binding

Biological Process: asymmetric protein localization; acetylcholine catabolic process in synaptic cleft

Disease: Endplate Acetylcholinesterase Deficiency