Thyrotropin receptor (original) (raw)

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Mammalian protein found in Homo sapiens

TSHR
Available structuresPDBOrtholog search: PDBe RCSB List of PDB id codes2XWT, 3G04
Identifiers
Aliases TSHR, CHNG1, LGR3, hTSHR-I, thyroid stimulating hormone receptor, Thyrotropin receptor, thyrotropin (TSH) receptor
External IDs OMIM: 603372; MGI: 98849; HomoloGene: 315; GeneCards: TSHR; OMA:TSHR - orthologs
Gene location (Human)Chromosome 14 (human)Chr.Chromosome 14 (human)[1]Chromosome 14 (human)Genomic location for TSHRGenomic location for TSHRBand14q31.1Start80,954,989 bp[1]End81,146,306 bp[1]
Gene location (Mouse)Chromosome 12 (mouse)Chr.Chromosome 12 (mouse)[2]Chromosome 12 (mouse)Genomic location for TSHRGenomic location for TSHRBand12 D3|12 44.51 cMStart91,351,337 bp[2]End91,516,582 bp[2]
RNA expression patternBgeeHuman Mouse (ortholog)Top expressed inleft lobe of thyroid glandright lobe of thyroid glandtesticlethymusbone marrow cellsbuccal mucosa cellventricular zonegonadlymph noderight lobe of liverTop expressed inretinal pigment epitheliumwhite adipose tissuelactiferous glandsubcutaneous adipose tissuespermatocytebrown adipose tissuespermatidventricular zonetunica adventitia of aortamedian eminenceMore reference expression dataBioGPSMore reference expression data
Gene ontologyMolecular function G protein-coupled peptide receptor activity protein binding G protein-coupled receptor activity protein-hormone receptor activity signal transducer activity thyroid-stimulating hormone receptor activity protein-containing complex binding signaling receptor activity Cellular component integral component of membrane receptor complex integral component of plasma membrane membrane cell surface plasma membrane basolateral plasma membrane intracellular anatomical structure Biological process cell-cell signaling G protein-coupled receptor signaling pathway G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger adenylate cyclase-activating G protein-coupled receptor signaling pathway positive regulation of cell population proliferation activation of adenylate cyclase activity hormone-mediated signaling pathway signal transduction nervous system development cell surface receptor signaling pathway positive regulation of adenylate cyclase activity cellular response to glycoprotein cellular response to thyrotropin-releasing hormone thyroid-stimulating hormone signaling pathway positive regulation of cold-induced thermogenesis Sources:Amigo / QuickGO
OrthologsSpeciesHuman MouseEntrez725322095EnsemblENSG00000165409ENSMUSG00000020963UniProtP16473P47750RefSeq (mRNA)NM_000369NM_001018036NM_001142626NM_001113404NM_011648RefSeq (protein)NP_000360NP_001018046NP_001136098NP_001106875NP_035778Location (UCSC)Chr 14: 80.95 – 81.15 MbChr 12: 91.35 – 91.52 MbPubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

The thyrotropin receptor (or TSH receptor) is a receptor (and associated protein) that responds to thyroid-stimulating hormone (also known as "thyrotropin") and stimulates the production of thyroxine (T4) and triiodothyronine (T3). The TSH receptor is a member of the G protein-coupled receptor superfamily of integral membrane proteins[5] and is coupled to the Gs protein.[6]

It is primarily found on the surface of the thyroid epithelial cells, but also found on adipose tissue and fibroblasts. The latter explains the reason of the myxedema finding during Graves disease. In addition, it has also been found to be expressed in the anterior pituitary gland, hypothalamus and kidneys. Its presence in the anterior pituitary gland may be involved in mediating the paracrine signaling feedback inhibition of thyrotropin along the hypothalamus-pituitary-thyroid axis.[7]

Upon binding circulating TSH, a G-protein signal cascade activates adenylyl cyclase and intracellular levels of cAMP rise. cAMP activates all functional aspects of the thyroid cell, including iodine pumping; thyroglobulin synthesis, iodination, endocytosis, and proteolysis; thyroid peroxidase activity; and hormone release. TSHR is involved in regulating seasonal reproduction in vertebrates.[8]

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000165409Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000020963Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ Farid NR, Szkudlinski MW (Sep 2004). "Minireview: structural and functional evolution of the thyrotropin receptor". Endocrinology. 145 (9): 4048–57. doi:10.1210/en.2004-0437. PMID 15231707.
  6. ^ Calebiro D, Nikolaev VO, Lohse MJ (Jul 2010). "Imaging of persistent cAMP signaling by internalized G protein-coupled receptors". Journal of Molecular Endocrinology. 45 (1): 1–8. doi:10.1677/JME-10-0014. PMID 20378719.
  7. ^ Williams GR (April 2011). "Extrathyroidal expression of TSH receptor". Annales d'Endocrinologie. 54es Journees internationales d'Endocrinologie clinique. 72 (2): 68–73. doi:10.1016/j.ando.2011.03.006. PMID 21511243.
  8. ^ Nakane Y, Yoshimura T (February 2019). "Photoperiodic Regulation of Reproduction in Vertebrates". Annual Review of Animal Biosciences. 7 (1): 173–194. doi:10.1146/annurev-animal-020518-115216. PMID 30332291. S2CID 52984435.