Metabotropic glutamate receptor 5 or mGluR5 (UniProt P31424; also known as G protein-coupled receptor GRM5, G protein coupled receptor family C, group 1, member E) is encoded by the Grm5 (also known as Gprc1e, Mglur5) gene (Gene ID 24418) in rat species. The metabotropic glutamate receptors belong to a family of G protein-coupled receptors that have been divided into 3 groups based on their sequence homology, putative signal transduction mechanisms, and pharmacologic properties. mGluR1 and mGluR5 constitute Group I metabotropic glutamate receptors. mGluR5 is found on postsynaptic terminals of neurons and microglia. mGluR5 signals via Gq/G11 coupling to activate phospholipase C, resulting in calcium mobilization and activation of protein kinase C (PKC). In addition, mGluR5 is also reported to mediate signaling involving Src-family protein tyrosine kinase in a G protein-independent manner.
Synonyms: Metabotropic glutamate receptor 5, mGluR5, G protein-coupled receptor GRM5, G protein coupled receptor family C, group 1, member E
Application: Research Sub CategoryNeurotransmitters & Receptors
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