RAMP2
Receptor activity-modifying protein 2
Also known as: RAMP2_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O60895
- Gene
- RAMP2
- Ensembl
- ENSG00000131477
- Chromosome
- 17
- Canonical length
- 175 aa
- Protein class
- FDA approved drug targets, Plasma proteins, Predicted intracellular proteins, Predicted membrane proteins, Transporters
- Subcellular location
- Vesicles
OverviewNCBI Gene
The protein encoded by this gene is a member of the RAMP 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 (CRLR) to the plasma membrane. CRLR, a receptor with seven transmembrane domains, can function as either a calcitonin-gene-related peptide (CGRP) receptor or an adrenomedullin receptor, depending on which members of the RAMP family are expressed. In the presence of this (RAMP2) protein, CRLR functions as an adrenomedullin receptor. The RAMP2 protein is involved in core glycosylation and transportation of adrenomedullin receptor to the cell surface. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
175 residues, UniProt reviewed canonical sequence.
>O60895|RAMP2
1 MASLRVERAG GPRLPRTRVG RPAALRLLLL LGAVLNPHEA LAQPLPTTGT PGSEGGTVKN
61 YETAVQFCWN HYKDQMDPIE KDWCDWAMIS RPYSTLRDCL EHFAELFDLG FPNPLAERII
121 FETHQIHFAN CSLVQPTFSD PPEDVLLAMI IAPICLIPFL ITLVVWRSKD SEAQALocalizationUniProt · AlphaFold · HPA
Whether an antibody against RAMP2 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Cell surface
- Secreted
- No
- Transmembrane segments
- 1
- Mean surface accessibility (rSASA)
- 0.5
- Highest tissue expression
- 185 nTPM
Expression across tissuesHPA
Tissue
- adipose tissue: 185 nTPM
- breast: 167 nTPM
- lung: 161 nTPM
- heart muscle: 129 nTPM
- tongue: 92 nTPM
- placenta: 91 nTPM
Single-cell type
- vascular endothelial cells: 547 nCPM
- lymphatic endothelial cells: 444 nCPM
- decidual stromal cells: 208 nCPM
- fibroblasts: 178 nCPM
- differentiating spermatogonia: 67 nCPM
- respiratory ionocytes: 58 nCPM
Immune cell
- plasmacytoid DC: 2.9 nTPM
- T-reg: 0.1 nTPM
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
Brain region
- pons: 65 nTPM
- midbrain: 54 nTPM
- choroid plexus: 51 nTPM
- thalamus: 49 nTPM
- hypothalamus: 48 nTPM
- medulla oblongata: 47 nTPM
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 1.08
- gnomAD pLI
- 0.05
- gnomAD missense Z
- 0.92
- DepMap mean gene effect
- -0.01
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- adenylate cyclase-activating G protein-coupled receptor signaling pathway
- adherens junction assembly
- adrenomedullin receptor signaling pathway
- amylin receptor 2 signaling pathway
- angiogenesis
- basement membrane assembly
- bicellular tight junction assembly
- calcium ion transport
- cellular response to hormone stimulus
- cellular response to vascular endothelial growth factor stimulus
- G protein-coupled receptor signaling pathway
- heart development
- intracellular protein transport
- negative regulation of endothelial cell apoptotic process
- negative regulation of vascular permeability
- positive regulation of angiogenesis
- positive regulation of gene expression
- positive regulation of vasculogenesis
- protein localization to plasma membrane
- protein transport
- receptor internalization
- regulation of blood pressure
- regulation of G protein-coupled receptor signaling pathway
- sprouting angiogenesis
- vascular associated smooth muscle cell development
- vasculogenesis
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads RAMP2 as an antibody target. Whether an autoantibody or antibody against RAMP2 could matter depends on whether native RAMP2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
RAMP2 is annotated at the cell surface, where native RAMP2 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label RAMP2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
Loading the interactive Seroatlas protein explorer...