Protein Domain : IPR001817

Type:  Family Name:  Vasopressin receptor
Description:  G protein-coupled receptors (GPCRs) constitute a vast protein family that encompasses a wide range of functions, including various autocrine, paracrine and endocrine processes. They show considerable diversity at the sequence level, on the basis of which they can be separated into distinct groups []. The term clan can be used to describe the GPCRs, as they embrace a group of families for which there are indications of evolutionary relationship, but between which there is no statistically significant similarity in sequence []. The currently known clan members include rhodopsin-like GPCRs (Class A, GPCRA), secretin-like GPCRs (Class B, GPCRB), metabotropic glutamate receptor family (Class C, GPCRC), fungal mating pheromone receptors (Class D, GPCRD), cAMP receptors (Class E, GPCRE) and frizzled/smoothened (Class F, GPCRF) [, , , , ]. GPCRs are major drug targets, and are consequently the subject of considerable research interest. It has been reported that the repertoire of GPCRs for endogenous ligands consists of approximately 400 receptors in humans and mice []. Most GPCRs are identified on the basis of their DNA sequences, rather than the ligand they bind, those that are unmatched to known natural ligands are designated by as orphan GPCRs, or unclassified GPCRs [].The rhodopsin-like GPCRs (GPCRA) represent a widespread protein family that includes hormone, neurotransmitter and light receptors, all of which transduce extracellular signals through interaction with guanine nucleotide-binding (G) proteins. Although their activating ligands vary widely in structure and character, the amino acid sequences of the receptors are very similar and are believed to adopt a common structural framework comprising 7 transmembrane (TM) helices [, , ].Vasopressin and oxytocin are members of the neurohypophyseal hormone family found in all mammalian species. They are present in high levels in theposterior pituitary. Vasopressin has an essential role in the control of the water content of the body, acting in the kidney to increase water andsodium absorption. In higher concentrations, vasopressin stimulates contraction of vascular smooth muscle, stimulates glycogen breakdown in theliver, induces platelet activation, and evokes release of corticotrophin from the anterior pituitary. Vasopressin and its analogues are usedclinically to treat diabetes insipidus. Oxytocin stimulates contraction of uterine smooth muscle, and stimulates milk secretion in response tosuckling by inducing contraction of myoepithelial cells in the mammary gland . Clinically, it is used to induce labour and promote lactation. Short Name:  Vasoprsn_rcpt

4 Child Features

DB identifier Type Name
IPR002062 Family Oxytocin receptor
IPR000161 Family Vasopressin V2 receptor
IPR000628 Family Vasopressin V1B receptor
IPR001224 Family Vasopressin V1A receptor

0 Contains

1 Cross References

Identifier
PR00896

0 Found In

3 GO Annotations

GO Term Gene Name
GO:0005000 IPR001817
GO:0007186 IPR001817
GO:0016021 IPR001817

3 Ontology Annotations

GO Term Gene Name
GO:0005000 IPR001817
GO:0007186 IPR001817
GO:0016021 IPR001817

1 Parent Features

DB identifier Type Name
IPR000276 Family G protein-coupled receptor, rhodopsin-like

0 Proteins

10 Publications

First Author Title Year Journal Volume Pages PubMed ID
            2111655
            2830256
            8386361
            8170923
            16753280
            23020293
            12679517
            8081729
            15914470
            18948278