11. This enzyme participates in glutamate metabolism and alanine and aspartate metabolism. 12. This enzyme participates in glutamate metabolism and aminoacyl-trna biosynthesis. 13. This enzyme participates in glutamate metabolism and nicotinate and nicotinamide metabolism. 14. Thus, the two products are prephenate and L-glutamate . 15. Glutamate receptors mediate the majority of excitatory neurotransmission in the brain.16. Members of this family regulate group 1 metabotrophic glutamate receptor function. 17. Glutamate is also a known metabolite substance which can enter glyceroneogenesis.18. It is an inhibitor of the GLT-1 glutamate transporter. 19. Stuart Cull-Candy works on glutamate -activated ion channels. 20. In addition to salt, some misos contain monosodium glutamate and preservatives.