Protein Domain : IPR002002

Type:  Family Name:  Octopamine 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 [, , ].The insect octopamine receptor mediates the attenuation of adenylate cyclaseactivity. Sequence and pharmacological comparisons indicate that the octopamine receptor is unique, but closely related to mammalian adrenergicreceptors, perhaps as an evolutionary precursor [, ]. Short Name:  Octopmn_rcpt

0 Child Features

0 Contains

1 Cross References

Identifier
PR00664

0 Found In

3 GO Annotations

GO Term Gene Name
GO:0004989 IPR002002
GO:0007186 IPR002002
GO:0016021 IPR002002

3 Ontology Annotations

GO Term Gene Name
GO:0004989 IPR002002
GO:0007186 IPR002002
GO:0016021 IPR002002

1 Parent Features

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

0 Proteins

12 Publications

First Author Title Year Journal Volume Pages PubMed ID
            2111655
            2830256
            8386361
            8170923
            16753280
            23020293
            12679517
            8081729
            15914470
            18948278
            2170118
            2156539