Metabotropic glutamate receptor 4 is a protein that in humans is encoded by the GRM4gene.[5][6][7]
Together with GRM6, GRM7 and GRM8 it belongs to group III of the metabotropic glutamate receptor family. Group III receptors are linked to the inhibition of the cyclic AMP cascade.[7]
Activation of GRM4 has potential therapeutic benefits in the treatment of parkinson's disease. Splice variant "taste-GRM4" is involved in the perception of umami taste.[8]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^Makoff A, Lelchuk R, Oxer M, Harrington K, Emson P (April 1996). "Molecular characterization and localization of human metabotropic glutamate receptor type 4". Brain Research. Molecular Brain Research. 37 (1–2): 239–248. doi:10.1016/0169-328X(95)00321-I. PMID8738157.
^Wu S, Wright RA, Rockey PK, Burgett SG, Arnold JS, Rosteck PR, et al. (January 1998). "Group III human metabotropic glutamate receptors 4, 7 and 8: molecular cloning, functional expression, and comparison of pharmacological properties in RGT cells". Brain Research. Molecular Brain Research. 53 (1–2): 88–97. doi:10.1016/S0169-328X(97)00277-5. PMID9473604.