RAMP1
Receptor activity-modifying protein 1
Also known as: RAMP1_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O60894
- Gene
- RAMP1
- Ensembl
- ENSG00000132329
- Chromosome
- 2
- Canonical length
- 148 aa
- Protein class
- FDA approved drug targets, Predicted membrane proteins, Transporters
- Subcellular location
- Nucleoplasm,Nuclear membrane
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 (RAMP1) protein, CRLR functions as a CGRP receptor. The RAMP1 protein is involved in the terminal glycosylation, maturation, and presentation of the CGRP receptor to the cell surface. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Apr 2015]
Canonical amino-acid sequenceUniProt
148 residues, UniProt reviewed canonical sequence.
>O60894|RAMP1
1 MARALCRLPR RGLWLLLAHH LFMTTACQEA NYGALLRELC LTQFQVDMEA VGETLWCDWG
61 RTIRSYRELA DCTWHMAEKL GCFWPNAEVD RFFLAVHGRY FRSCPISGRA VRDPPGSILY
121 PFIVVPITVT LLVTALVVWQ SKRTEGIVLocalizationUniProt · AlphaFold · HPA
Whether an antibody against RAMP1 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)
- 0.43
- Highest tissue expression
- 694 nTPM
Expression across tissuesHPA
Tissue
- endometrium: 694 nTPM
- blood vessel: 534 nTPM
- cervix: 401 nTPM
- colon: 368 nTPM
- fallopian tube: 306 nTPM
- heart muscle: 295 nTPM
Single-cell type
- decidual stromal cells: 2,218 nCPM
- smooth muscle cells: 817 nCPM
- thymic myoid cells: 552 nCPM
- endometrial stromal cells: 455 nCPM
- epididymal principal cells: 423 nCPM
- epididymal efferent duct absorptive cells: 407 nCPM
Immune cell
- NK-cell: 70 nTPM
- gdT-cell: 3.8 nTPM
- total PBMC: 3.4 nTPM
- myeloid DC: 1 nTPM
- memory CD4 T-cell: 0.6 nTPM
- naive CD4 T-cell: 0.5 nTPM
Brain region
- medulla oblongata: 191 nTPM
- thalamus: 160 nTPM
- hypothalamus: 155 nTPM
- hippocampal formation: 140 nTPM
- spinal cord: 133 nTPM
- white matter: 131 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)
- 1.12
- gnomAD pLI
- 0.13
- gnomAD missense Z
- -0.55
- DepMap mean gene effect
- 0.05
- DepMap dependency class
- none
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
- amylin receptor 1 signaling pathway
- amylin receptor signaling pathway
- angiogenesis
- calcitonin gene-related peptide receptor signaling pathway
- calcium ion transport
- cellular response to hormone stimulus
- G protein-coupled receptor signaling pathway
- intracellular protein transport
- positive regulation of glycoprotein biosynthetic process
- protein localization to plasma membrane
- protein transport
- receptor internalization
- regulation of G protein-coupled receptor signaling pathway
Molecular functions
- amylin receptor activity
- calcitonin gene-related peptide receptor activity
- coreceptor activity
- calcitonin gene-related peptide binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of RAMP1 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads RAMP1 as an antibody target. Whether an autoantibody or antibody against RAMP1 could matter depends on whether native RAMP1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
RAMP1 is annotated at the cell surface, where native RAMP1 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 RAMP1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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