Entry Name Glutamatergic synapse - Odobenus rosmarus divergens (Pacific walrus)
Description Glutamate is the major excitatory neurotransmitter in the mammalian central nervous system(CNS). Glutamate is packaged into synaptic vesicles in the presynaptic terminal. Once released into the synaptic cleft, glutamate acts on postsynaptic ionotropic glutamate receptors (iGluRs) to mediate fast excitatory synaptic transmission. Glutamate can also act on metabotropic glutamate receptors (mGluRs) and exert a variety of modulatory effects through their coupling to G proteins and the subsequent recruitment of second messenger systems. Presynaptically localized Group II and Group III mGluRs are thought to represent the classical inhibitory autoreceptor mechanism that suppresses excess glutamate release. After its action on these receptors, glutamate can be removed from the synaptic cleft by EAATs located either on the presynaptic terminal, neighboring glial cells, or the postsynaptic neuron. In glia, glutamate is converted to glutamine, which is then transported back to the presynaptic terminal and converted back to glutamate.
Class Organismal Systems; Nervous systemBRITE hierarchy
Pathway map Ortholog table Other DBs Organism Odobenus rosmarus divergens (Pacific walrus) [GN:
oro ]
Gene 101375244 SLC38A1; sodium-coupled neutral amino acid transporter 1 [KO:K14990 ]
101374755 SLC38A2; sodium-coupled neutral amino acid transporter 2 isoform X1 [KO:K14207 ]
101378355 SLC17A8; vesicular glutamate transporter 3 isoform X1 [KO:K12302 ]
101372243 GRIK1; glutamate receptor ionotropic, kainate 1 isoform X1 [KO:K05201 ]
101375592 GRIK2; glutamate receptor ionotropic, kainate 2 isoform X1 [KO:K05202 ]
101376645 GRIK5; glutamate receptor ionotropic, kainate 5 isoform X2 [KO:K05205 ]
101368224 GRIN1; glutamate receptor ionotropic, NMDA 1 isoform X1 [KO:K05208 ]
101363063 PPP3CA; serine/threonine-protein phosphatase 2B catalytic subunit alpha isoform isoform X1 [KO:K04348 ] [EC:3.1.3.16 ]
101363831 PPP3CB; serine/threonine-protein phosphatase 2B catalytic subunit beta isoform isoform X2 [KO:K04348 ] [EC:3.1.3.16 ]
101385000 PPP3CC; serine/threonine-protein phosphatase 2B catalytic subunit gamma isoform isoform X2 [KO:K04348 ] [EC:3.1.3.16 ]
101374247 SHANK1; SH3 and multiple ankyrin repeat domains protein 1 [KO:K15009 ]
101377429 SHANK3; SH3 and multiple ankyrin repeat domains protein 3 [KO:K15009 ]
101368574 SHANK2; SH3 and multiple ankyrin repeat domains protein 2 [KO:K15009 ]
101362608 leucine zipper putative tumor suppressor 3 isoform X1 [KO:K26472 ]
101371176 TRPC1; short transient receptor potential channel 1 isoform X1 [KO:K04964 ]
101384596 GNAQ; guanine nucleotide-binding protein G(q) subunit alpha [KO:K04634 ]
101375710 PLCB3; 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-3 isoform X1 [KO:K05858 ] [EC:3.1.4.11 ]
101386162 PLCB4; 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-4 isoform X2 [KO:K05858 ] [EC:3.1.4.11 ]
101386750 PLCB1; 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-1 isoform X1 [KO:K05858 ] [EC:3.1.4.11 ]
101367743 ITPR1; inositol 1,4,5-trisphosphate receptor type 1 isoform X1 [KO:K04958 ]
101380808 ITPR3; inositol 1,4,5-trisphosphate receptor type 3 isoform X2 [KO:K04960 ]
101364060 GNAS; guanine nucleotide-binding protein G(s) subunit alpha isoforms XLas isoform X1 [KO:K04632 ]
101376186 GNAI1; guanine nucleotide-binding protein G(i) subunit alpha-1 isoform X1 [KO:K04630 ]
101367568 GNAI3; guanine nucleotide-binding protein G(k) subunit alpha [KO:K04630 ]
101367936 GNAI2; guanine nucleotide-binding protein G(i) subunit alpha-2 isoform X1 [KO:K04630 ]
101376297 GNAO1; guanine nucleotide-binding protein G(o) subunit alpha isoform X1 [KO:K04534 ]
101381482 GNB1; guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 isoform X1 [KO:K04536 ]
101378633 GNB2; guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-2 isoform X1 [KO:K04537 ]
101371845 GNB3; guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-3 [KO:K07825 ]
101369300 GNB4; guanine nucleotide-binding protein subunit beta-4 [KO:K04538 ]
101362117 GNB5; guanine nucleotide-binding protein subunit beta-5 isoform X1 [KO:K04539 ]
101366315 GNG2; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 [KO:K07826 ]
101376879 GNG3; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-3 [KO:K04540 ]
101369684 GNG4; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-4 [KO:K04541 ]
101365462 GNG5; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-5 [KO:K04542 ]
101363588 GNG7; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-7 [KO:K04543 ]
101371482 GNG8; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-8 [KO:K04544 ]
101370001 GNG10; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-10 [KO:K04545 ]
101375712 GNG11; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-11 [KO:K04546 ]
101379027 guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-12 [KO:K04347 ]
101374080 GNG12; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-12 [KO:K04347 ]
101368814 guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-7-like [KO:K04347 ]
101382152 GNG13; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-13 [KO:K04547 ]
101375999 GNGT1; guanine nucleotide-binding protein G(T) subunit gamma-T1 isoform X1 [KO:K04548 ]
101386155 GNGT2; guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-T2 [KO:K04549 ]
101383826 KCNJ3; G protein-activated inward rectifier potassium channel 1 isoform X1 [KO:K04997 ]
101378448 CACNA1A; voltage-dependent P/Q-type calcium channel subunit alpha-1A isoform X1 [KO:K04344 ]
101370525 SLC1A2; excitatory amino acid transporter 2 isoform X1 [KO:K05613 ]
101367444 SLC1A7; excitatory amino acid transporter 5 isoform X1 [KO:K05618 ]
101371717 SLC1A6; excitatory amino acid transporter 4 isoform X1 [KO:K05617 ]
101365624 CACNA1C; voltage-dependent L-type calcium channel subunit alpha-1C isoform X1 [KO:K04850 ]
101383514 CACNA1D; voltage-dependent L-type calcium channel subunit alpha-1D isoform X1 [KO:K04851 ]
101381668 SLC1A3; excitatory amino acid transporter 1 isoform X1 [KO:K05614 ]
101367647 SLC38A3; sodium-coupled neutral amino acid transporter 3 [KO:K13576 ]
Compound C01245 D-myo-Inositol 1,4,5-trisphosphate
Reference Authors Niswender CM, Conn PJ
Title Metabotropic glutamate receptors: physiology, pharmacology, and disease.
Journal Reference Authors Ferraguti F, Crepaldi L, Nicoletti F
Title Metabotropic glutamate 1 receptor: current concepts and perspectives.
Journal Reference Authors Hermans E, Challiss RA
Title Structural, signalling and regulatory properties of the group I metabotropic glutamate receptors: prototypic family C G-protein-coupled receptors.
Journal Reference Authors Kim CH, Lee J, Lee JY, Roche KW
Title Metabotropic glutamate receptors: phosphorylation and receptor signaling.
Journal Reference Authors Meador-Woodruff JH, Clinton SM, Beneyto M, McCullumsmith RE
Title Molecular abnormalities of the glutamate synapse in the thalamus in schizophrenia.
Journal Reference Authors Sanacora G, Zarate CA, Krystal JH, Manji HK
Title Targeting the glutamatergic system to develop novel, improved therapeutics for mood disorders.
Journal Reference Authors Gass JT, Olive MF
Title Glutamatergic substrates of drug addiction and alcoholism.
Journal Reference Authors Palmada M, Centelles JJ
Title Excitatory amino acid neurotransmission. Pathways for metabolism, storage and reuptake of glutamate in brain.
Journal Reference Authors Schoepp DD
Title Unveiling the functions of presynaptic metabotropic glutamate receptors in the central nervous system.
Journal J Pharmacol Exp Ther 299:12-20 (2001)
Reference Authors de Jong AP, Verhage M
Title Presynaptic signal transduction pathways that modulate synaptic transmission.
Journal Reference Authors Pinheiro PS, Mulle C
Title Presynaptic glutamate receptors: physiological functions and mechanisms of action.
Journal Reference Authors Byrnes KR, Loane DJ, Faden AI
Title Metabotropic glutamate receptors as targets for multipotential treatment of neurological disorders.
Journal Reference Authors Conti F, Weinberg RJ
Title Shaping excitation at glutamatergic synapses.
Journal Reference Authors Sheng M, Kim MJ
Title Postsynaptic signaling and plasticity mechanisms.
Journal Related KO pathway LinkDB All DBs
