41. Metabotropic glutamate receptors are also thought to affect dopaminergic and adrenergic neurotransmission. 42. Glutamate receptors are implicated in a number of neurological conditions.43. Current research is targeting glutamate receptor antagonists as potential treatments for schizophrenia. 44. A conserved glutamate residue is thought to contribute to a metal center. 45. The neurotransmitter in each of these connections is either glutamate or aspartate. 46. Taste enhancing agent is monosodium glutamate , salt or spices. 47. NAAG activates a specific receptor, the metabotropic glutamate receptor type 3. 48. NMDA receptor activation ( by glutamate ) enhances postsynaptic Nitric Oxide Synthase. 49. NMDA receptors are multimeric ionotropic glutamate GluN1 is obligate for functional expression. 50. This enzyme participates in d-glutamine and d-glutamate metabolism.