CALCRL (Calcitonin gene-related peptide type 1 receptor) gene is mapped to human chromosome 2q32.1 and contains 15 exons interspaced by 14 introns. Exons 1 to 3 form the non-coding region. Exons 4 through 15 comprise the coding region. The exons 8 to 14 in this region encodes seven transmembrane domains.
Synonyms: Anti-CGRP type 1 receptor; Anti-Calcitonin gene-related peptide type 1 receptor precursor; Anti-Calcitonin receptor-like receptor
Storage: -20C
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Biochem Physiol Actions: CALCRL (Calcitonin gene-related peptide type 1 receptor) gene encodes a class B G protein-coupled receptor (GPCR) that forms a heterodimer complex with receptor activity-modifying protein 2 (RAMP2). This complex functions as a receptor for adrenomedullin (AM). CALCRL is activated by core glycosylation after transport from endoplasmic reticulum to the cell membrane by RAMP2. CALCRL also binds to RAMP1 and functions as a CGRP receptor. Overexpression of this protein increases the sensitivity of the sphincter muscle to endogenous AM. This causes chronic relaxation of the sphincter muscle and obstructs aqueous outflow system. Polymorphism in this gene has been linked to primary angle closure glaucoma.
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