Group C GPCR family
| 7 transmembrane receptor (metabotropic glutamate family) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| Symbol | 7tm_3 | ||||||||
| Pfam | PF00003 | ||||||||
| InterPro | IPR000337 | ||||||||
| PROSITE | PDOC00754 | ||||||||
| TCDB | 9.A.14 | ||||||||
| OPM superfamily | 6 | ||||||||
| OPM protein | 4or2 | ||||||||
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| Available protein structures: | |
|---|---|
| Pfam | structures |
| PDB | RCSB PDB; PDBe; PDBj |
| PDBsum | structure summary |
The class C G-protein-coupled receptors (InterPro: IPR000337) are a class of G-protein coupled receptors that include the metabotropic glutamate receptors (InterPro: IPR000162) and several additional receptors.
Structurally they are composed of four elements; an N-terminal signal sequence; a large hydrophilic extracellular agonist-binding region containing several conserved cysteine residues which could be involved in disulphide bonds; a shorter region containing seven transmembrane domains; and a C-terminal cytoplasmic domain of variable length PMID 17266540. This protein family includes metabotropic glutamate receptors, the extracellular calcium-sensing receptors, the gamma-amino-butyric acid (GABA) type B receptors, and the vomeronasal type-2 receptors.
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