Calcitonin gene-related peptide

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Calcitonin gene-related peptides (CGRP) are a group of two similar neuropeptides that belong to the calcitonin family. The two types of CGRP in humans are alpha-CGRP (α-CGRP, also known as CGRP I) and beta-CGRP (β-CGRP, also known as CGRP II). α-CGRP is a 37-amino acid neuropeptide formed by alternative splicing of the calcitonin/CGRP gene located on chromosome 11. β-CGRP is less studied. In humans, β-CGRP differs from α-CGRP by three amino acids and is encoded in a separate, nearby gene. The CGRP family includes calcitonin (CT), adrenomedullin (AM), and amylin (AMY).

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