Seroatlas · Human Serome Atlas

CRHR2

Corticotropin-releasing factor receptor 2

Also known as: CRF-RB, CRF2, CRFR2_HUMAN, HM-CRF

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q13324
Gene
CRHR2
Ensembl
ENSG00000106113
Chromosome
7
Canonical length
411 aa
Protein class
G-protein coupled receptors, Predicted membrane proteins, Predicted secreted proteins
Subcellular location
Plasma membrane
Secretome location
Secreted - unknown location

OverviewNCBI Gene

The protein encoded by this gene belongs to the G-protein coupled receptor 2 family, and the subfamily of corticotropin releasing hormone receptor. This receptor shows high affinity for corticotropin releasing hormone (CRH), and also binds CRH-related peptides such as urocortin. CRH is synthesized in the hypothalamus, and plays an important role in coordinating the endocrine, autonomic, and behavioral responses to stress and immune challenge. Studies in mice suggest that this receptor maybe involved in mediating cardiovascular homeostasis. Alternatively spliced transcript variants encoding different isoforms have been described for this gene.[provided by RefSeq, Jan 2011]

Canonical amino-acid sequenceUniProt

411 residues, UniProt reviewed canonical sequence.

>Q13324|CRHR2
     1  MDAALLHSLL EANCSLALAE ELLLDGWGPP LDPEGPYSYC NTTLDQIGTC WPRSAAGALV
    61  ERPCPEYFNG VKYNTTRNAY RECLENGTWA SKINYSQCEP ILDDKQRKYD LHYRIALVVN
   121  YLGHCVSVAA LVAAFLLFLA LRSIRCLRNV IHWNLITTFI LRNVMWFLLQ LVDHEVHESN
   181  EVWCRCITTI FNYFVVTNFF WMFVEGCYLH TAIVMTYSTE RLRKCLFLFI GWCIPFPIIV
   241  AWAIGKLYYE NEQCWFGKEP GDLVDYIYQG PIILVLLINF VFLFNIVRIL MTKLRASTTS
   301  ETIQYRKAVK ATLVLLPLLG ITYMLFFVNP GEDDLSQIMF IYFNSFLQSF QGFFVSVFYC
   361  FFNGEVRSAV RKRWHRWQDH HSLRVPMARA MSIPTSPTRI SFHSIKQTAA V

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against CRHR2 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
7
Mean surface accessibility (rSASA)
0.36
Highest tissue expression
21 nTPM

Expression across tissuesHPA

Tissue

  • choroid plexus: 21 nTPM
  • pituitary gland: 3.9 nTPM
  • cerebral cortex: 2.5 nTPM
  • retina: 2.3 nTPM
  • heart muscle: 2.1 nTPM
  • tongue: 2 nTPM

Single-cell type

  • choroid plexus epithelial cells: 72 nCPM
  • retinal amacrine cells: 36 nCPM
  • retinal horizontal cells: 26 nCPM
  • epicardial cells: 23 nCPM
  • thyrotrophs: 16 nCPM
  • pericytes: 13 nCPM

Immune cell

  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM
  • MAIT T-cell: 0 nTPM

Brain region

  • choroid plexus: 48 nTPM
  • cerebral cortex: 15 nTPM
  • hypothalamus: 8 nTPM
  • white matter: 7.3 nTPM
  • hippocampal formation: 7.2 nTPM
  • basal ganglia: 5.4 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)
1.28
gnomAD pLI
0
gnomAD missense Z
0.75
DepMap mean gene effect
0.12
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

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of CRHR2 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 CRHR2 as an antibody target. Whether an autoantibody or antibody against CRHR2 could matter depends on whether native CRHR2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

CRHR2 is annotated at the cell surface, where native CRHR2 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 CRHR2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/CRHR2. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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