GRM4

L-glutamate is the major excitatory neurotransmitter in the central nervous system and activates both ionotropic and metabotropic glutamate receptors. Glutamatergic neurotransmission is involved in most aspects of normal brain function and can be perturbed in many neuropathologic conditions. The metabotropic glutamate receptors are a family of G protein-coupled receptors, that have been divided into 3 groups on the basis of sequence homology, putative signal transduction mechanisms, and pharmacologic properties. Group I includes GRM1 and GRM5 and these receptors have been shown to activate phospholipase C. Group II includes GRM2 and GRM3 while Group III includes GRM4, GRM6, GRM7 and GRM8. Group II and III receptors are linked to the inhibition of the cyclic AMP cascade but differ in their agonist selectivities. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2012]

Description

Glutamate metabotropic receptor 4

Tissue specificity

Tissue enriched (brain)

Predicted location

Intracellular, Membrane

Protein family

G-protein coupled receptors
Mapped to neXtProt
Mapped to UniProt SWISS-PROT
Predicted intracellular proteins
Predicted membrane proteins
Protein evidence (Kim et al 2014)

Chromosome

6 (34018643 - 34155622)

Ensembl ID

ENSG00000124493  (ver. 103.38)

Orthologs

Mouse Grm4: ENSMUSG00000063239

UniProt

Q14833

neXtProt

NX_Q14833

Human splice variants
Mouse splice variants

Protein structure