GNRHR
Gonadotropin-releasing hormone receptor
Also known as: GNRHR_HUMAN, GRHR, LHRHR
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P30968
- Gene
- GNRHR
- Ensembl
- ENSG00000109163
- Chromosome
- 4
- Canonical length
- 328 aa
- Protein class
- Disease related genes, FDA approved drug targets, G-protein coupled receptors, Human disease related genes, Predicted membrane proteins, Transporters
OverviewNCBI Gene
This gene encodes the receptor for type 1 gonadotropin-releasing hormone. This receptor is a member of the seven-transmembrane, G-protein coupled receptor (GPCR) family. It is expressed on the surface of pituitary gonadotrope cells as well as lymphocytes, breast, ovary, and prostate. Following binding of gonadotropin-releasing hormone, the receptor associates with G-proteins that activate a phosphatidylinositol-calcium second messenger system. Activation of the receptor ultimately causes the release of gonadotropic luteinizing hormone (LH) and follicle stimulating hormone (FSH). Defects in this gene are a cause of hypogonadotropic hypogonadism (HH). Alternative splicing results in multiple transcript variants encoding different isoforms. More than 18 transcription initiation sites in the 5' region and multiple polyA signals in the 3' region have been identified for this gene. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
328 residues, UniProt reviewed canonical sequence.
>P30968|GNRHR
1 MANSASPEQN QNHCSAINNS IPLMQGNLPT LTLSGKIRVT VTFFLFLLSA TFNASFLLKL
61 QKWTQKKEKG KKLSRMKLLL KHLTLANLLE TLIVMPLDGM WNITVQWYAG ELLCKVLSYL
121 KLFSMYAPAF MMVVISLDRS LAITRPLALK SNSKVGQSMV GLAWILSSVF AGPQLYIFRM
181 IHLADSSGQT KVFSQCVTHC SFSQWWHQAF YNFFTFSCLF IIPLFIMLIC NAKIIFTLTR
241 VLHQDPHELQ LNQSKNNIPR ARLKTLKMTV AFATSFTVCW TPYYVLGIWY WFDPEMLNRL
301 SDPVNHFFFL FAFLNPCFDP LIYGYFSLLocalizationUniProt · AlphaFold · HPA
Whether an antibody against GNRHR 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)
- 0.31
- Highest tissue expression
- 12 nTPM
Expression across tissuesHPA
Tissue
- pituitary gland: 12 nTPM
- adrenal gland: 0.7 nTPM
- retina: 0.4 nTPM
- vagina: 0.4 nTPM
- cerebral cortex: 0.3 nTPM
- cervix: 0.3 nTPM
Single-cell type
- gonadotrophs: 406 nCPM
- epicardial cells: 93 nCPM
- cardiomyocytes: 76 nCPM
- retinal ganglion cells: 27 nCPM
- granulosa cells: 17 nCPM
- retinal horizontal cells: 14 nCPM
Immune cell
- naive B-cell: 0.1 nTPM
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
Brain region
- pons: 5.7 nTPM
- cerebral cortex: 5.4 nTPM
- white matter: 5.2 nTPM
- hypothalamus: 4.9 nTPM
- medulla oblongata: 4.9 nTPM
- midbrain: 4.4 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about GNRHR.
Disease | AllUniProt
Conditions GNRHR is implicated in, by any mechanism.
- Hypogonadotropic hypogonadism 7 with or without anosmia (HH7) MIM:146110
Disease | GeneticClinVar
44 pathogenic / likely-pathogenic of 219 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Hypogonadotropic hypogonadism 7 with or without anosmia
- Hypogonadotropic hypogonadism
- GNRHR-related disorder
- Isolated congenital hypogonadotropic hypogonadism
- See cases
Disease | ImmuneIEDB
Conditions an epitope on GNRHR was assayed in.
- ovarian disease B cell
Disease | AutoantibodyPubMed
Conditions in which antibodies against GNRHR are reported. Each links to that disease's full target list.
Showing 0 of 1 — disease pages carrying at least 10 antigens.
ReferencesPubMed · IEDB
Publications for GNRHR from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.
Reference: AutoantibodyPubMed
8 publications
- Increased testosterone and proinflammatory cytokines in patients with polycystic ovary syndrome correlate with elevated GnRH receptor autoantibody activity assessed by a fluorescence resonance energy transfer-based bioassay.
2021 · Endocrine · RCR 0.9 · 11 citations - The Role of GnRH Receptor Autoantibodies in Polycystic Ovary Syndrome.
2020 · J Endocr Soc · RCR 0.9 · 13 citations - Autoantibodies and gastrointestinal symptoms in infertile women in relation to in vitro fertilization.
2013 · BMC Pregnancy Childbirth · RCR 0.9 · 20 citations - Gonadotrophin-releasing hormone receptor autoantibodies induce polycystic ovary syndrome-like features in a rat model.
2021 · Exp Physiol · RCR 0.7 · 8 citations - Antibodies against gonadotropin-releasing hormone (GnRH) and destruction of enteric neurons in 3 patients suffering from gastrointestinal dysfunction.
2010 · BMC Gastroenterol · RCR 0.6 · 19 citations
Show 3 more
- Natural autoantibodies to the gonadotropin-releasing hormone receptor in polycystic ovarian syndrome.
2021 · PLoS One · RCR 0.6 · 7 citations - Elevated activity levels of activating autoantibodies to the GnRH receptor in patients with polycystic ovary syndrome.
2020 · F S Rep · RCR 0.5 · 7 citations - GnRH receptor-activating autoantibodies in polycystic ovary syndrome: identification of functional epitopes and development of epitope mimetic inhibitors.
2022 · Endocrine · RCR 0.4 · 3 citations
Reference: B cellIEDB
2 publications
- Peptide microarray-based characterization of antibody responses to host proteins after bacille Calmette-Guérin vaccination.
2017 · Int J Infect Dis · RCR 0.7 · 19 citations - GnRH receptor-activating autoantibodies in polycystic ovary syndrome: identification of functional epitopes and development of epitope mimetic inhibitors.
2022 · Endocrine · RCR 0.4 · 3 citations
Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. IEDB — curated epitope assays from the Immune Epitope Database (Vita et al., Nucleic Acids Research 2019). Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.
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)
- 0.75
- gnomAD pLI
- 0.07
- gnomAD missense Z
- 0.3
- DepMap mean gene effect
- 0.06
- 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
- cellular response to hormone stimulus
- G protein-coupled receptor signaling pathway
- gonadotropin secretion
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads GNRHR as an antibody target. Whether an autoantibody or antibody against GNRHR could matter depends on whether native GNRHR is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
GNRHR is annotated at the cell surface, where native GNRHR 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 GNRHR as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
Loading the interactive Seroatlas protein explorer...