Calcitonin Gene-related Peptide Receptor
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Calcitonin Gene-related Peptide Receptor
Calcitonin receptor-like (CALCRL), also known as the calcitonin receptor-like receptor (CRLR), is a human protein; it is a receptor for calcitonin gene-related peptide. Function The protein encoded by the CALCRL gene is a G protein-coupled receptor related to the calcitonin receptor. CALCRL is linked to one of three single transmembrane domain receptor activity-modifying proteins (RAMPs) that are essential for functional activity. The association of CALCRL with different RAMP proteins produces different receptors: * with RAMP1: produces a CGRP receptor * with RAMP2: produces an adrenomedullin (AM) receptor, designated AM1 * with RAMP3: produces a dual CGRP/AM receptor designated AM2 These receptors are linked to the G protein Gs, which activates adenylate cyclase and activation results in the generation of intracellular cyclic adenosine monophosphate (cAMP). CGRP receptors are found throughout the body, suggesting that the protein may modulate a variety of physiological funct ...
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Protein
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, responding to stimuli, providing structure to cells and organisms, and transporting molecules from one location to another. Proteins differ from one another primarily in their sequence of amino acids, which is dictated by the nucleotide sequence of their genes, and which usually results in protein folding into a specific 3D structure that determines its activity. A linear chain of amino acid residues is called a polypeptide. A protein contains at least one long polypeptide. Short polypeptides, containing less than 20–30 residues, are rarely considered to be proteins and are commonly called peptides. The individual amino acid residues are bonded together by peptide bonds and adjacent amino acid residues. The sequence of amino acid resid ...
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