Abstract:
:Family C of G-protein coupled receptors (GPCRs) from humans is constituted by eight metabotropic glutamate (mGlu(1-8)) receptors, two heterodimeric gamma-aminobutyric acid(B) (GABA(B)) receptors, a calcium-sensing receptor (CaR), three taste (T1R) receptors, a promiscuous L-alpha-amino acid receptor (GPRC6A), and five orphan receptors. Aside from the orphan receptors, the family C GPCRs are characterised by a large amino-terminal domain, which bind the endogenous orthosteric agonists. Recently, a number of allosteric modulators binding to the seven transmembrane domains of the receptors have also been reported. Family C GPCRs regulate a number of important physiological functions and are thus intensively pursued as drug targets. So far, two drugs acting at family C receptors (the GABA(B) agonist baclofen and the positive allosteric CaR modulator cinacalcet) have been marketed. Cinacalcet is the first allosteric GPCR modulator to enter the market, which demonstrates that the therapeutic principle of allosteric modulation can also be extended to this important drug target class. In this review we outline the structure and function of family C GPCRs with particular focus on the ligand binding sites, and we present the most important pharmacological agents and the therapeutic prospects of the receptors.
journal_name
Curr Drug Targetsjournal_title
Current drug targetsauthors
Bräuner-Osborne H,Wellendorph P,Jensen AAdoi
10.2174/138945007779315614subject
Has Abstractpub_date
2007-01-01 00:00:00pages
169-84issue
1eissn
1389-4501issn
1873-5592journal_volume
8pub_type
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更新日期:2007-03-01 00:00:00
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