RAMP2
Encyclopedia
Receptor activity modifying protein 2, also known as RAMP2, is a protein
Protein
Proteins are biochemical compounds consisting of one or more polypeptides typically folded into a globular or fibrous form, facilitating a biological function. A polypeptide is a single linear polymer chain of amino acids bonded together by peptide bonds between the carboxyl and amino groups of...

 which in humans is encoded by the RAMP2 gene
Gene
A gene is a molecular unit of heredity of a living organism. It is a name given to some stretches of DNA and RNA that code for a type of protein or for an RNA chain that has a function in the organism. Living beings depend on genes, as they specify all proteins and functional RNA chains...

.

Function

The protein encoded by this gene is a member of the RAMP
Receptor activity-modifying protein
Receptor activity-modifying proteins are a class of protein which interact with and modulate the activities of several Class B G Protein-Coupled Receptors including the receptors for secretin, calcitonin , glucagon, and vasoactive intestinal peptide...

 family of single-transmembrane-domain proteins, called receptor (calcitonin) activity modifying proteins (RAMPs). RAMPs are type I transmembrane proteins with an extracellular N-terminus and a cytoplasmic C-terminus. RAMPs are required to transport calcitonin-receptor-like receptor
CALCRL
Calcitonin receptor-like , also known as the calcitonin receptor-like receptor , is a human protein.- Function :The protein encoded by the CALCRL gene is a G protein-coupled receptor related to the calcitonin receptor...

 (CRLR) to the plasma membrane. CRLR, a receptor with seven transmembrane domains, can function as either a calcitonin gene-related peptide
Calcitonin gene-related peptide
Calcitonin gene related peptide is a member of the calcitonin family of peptides, which in humans exists in two forms, α-CGRP and β-CGRP. α-CGRP is a 37-amino acid peptide and is formed from the alternative splicing of the calcitonin/CGRP gene located on chromosome 11...

 (CGRP) receptor or an adrenomedullin
Adrenomedullin
Adrenomedullin is a peptide associated with pheochromocytoma- a tumour arising from adrenal medulla. It was discovered in 1993.Adrenomedullin is a ubiquitously expressed peptide initially isolated from phaechromyctoma in 1993...

 receptor, depending on which members of the RAMP family are expressed. In the presence of this (RAMP2) protein, CRLR functions as an adrenomedullin
Adrenomedullin
Adrenomedullin is a peptide associated with pheochromocytoma- a tumour arising from adrenal medulla. It was discovered in 1993.Adrenomedullin is a ubiquitously expressed peptide initially isolated from phaechromyctoma in 1993...

receptor. The RAMP2 protein is involved in core glycosylation and transportation of adrenomedullin receptor to the cell surface.
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