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  • catalytic
  • These structures are the first structures for any eukaryotic GGT that include a molecule in the active site covalently bound to the catalytic Thr-381. (osti.gov)
  • First and foremost, the Spies lab is interested in structure-based computer-aided drug discovery, and the discovery of glutamate racemase inhibitors is a project located at the intersection of ligand binding and catalysis, where small molecules inhibit the catalytic process. (illinois.edu)
  • conformation
  • Unfortunately due to the conformation-dependent nature of ligand binding, the act of discovering a new small molecule that will bind these particular proteins is analogous to aiming at a moving target. (illinois.edu)
  • glutamic acid-rich
  • The identification of a novel human homologue of the SH3 binding glutamic acid-rich (SH3BGR) gene establishes a new family of highly conserved small proteins related to Thioredoxin Superfamily. (nih.gov)
  • hippocampus
  • We have investigated the influence of 16 weeks' treatment with haloperidol on eight glutamate receptor mRNAs in dorsolateral striatum, frontoparietal cortex and hippocampus using in situ hybridization histochemistry. (ox.ac.uk)
  • rats
  • the present study sought to determine if rats with high (HTR) and low (LTR) thresholds to clonic convulsions induced by the benzodiazepine inverse agonist DMCM differed in the [H-l-glutamate binding to membranes from discrete brain regions. (unifesp.br)
  • GluA2
  • EMDB-8823: Activated GluA2 complex bound to glutamate, cyclothiazide, and ST. (pdbj.org)
  • In this work, a DFT study on the GluA2-glutamate interaction was carried out using the structure of GluA2 co-crystallized with the glutamate ligand. (rsc.org)
  • We developed a novel model to describe the non-uniform dielectric function of the GluA2 receptor, evaluating the binding energy of the GluA2-glutamate system accordingly and comparing the results with those obtained using a fixed dielectric function. (rsc.org)
  • mGluRs
  • These data suggest that the BDNF/tyrosine receptor kinase B and Cdk5 pathways converge at the level of mGluR to similarly induce Homer ligand phosphorylation, recruit Homer binding, and uncouple mGluRs from channel regulation. (aspetjournals.org)
  • novel
  • Inhibitors of glutamate racemase could act as novel antibiotics against a target to which there are no current antibiotics, and thus no known resistance. (illinois.edu)
  • characterization
  • Autoradiographic characterization of [3H]L-glutamate binding sites in developing mouse cerebellar cortex. (muscimol.xyz)
  • Spies, M. A. Nature of allosteric inhibition in glutamate racemase: discovery and characterization of a cryptic inhibitory pocket using atomistic MD simulations and pKa calculations. (illinois.edu)
  • Synapses
  • The increase of the Cl-/Ca(2+)-dependent binding in the molecular layer is simultaneous with the growth of Purkinje cell dendrites and of parallel fibres and with the formation of the synapses between them. (muscimol.xyz)
  • This suggests that these binding sites are localized in these synapses. (muscimol.xyz)
  • interaction
  • Interestingly, the BDNF pathway appeared to require native Preso1 binding to mGluR, because overexpression of the Preso1 FERM domain, which mediates the Preso1-mGluR interaction, prevented BDNF-induced uncoupling. (aspetjournals.org)
  • FK506 achieves these properties through interaction with FK506 Binding Proteins (FKBP), including FKBP51. (arvojournals.org)
  • crystal structures
  • In this study, we report four new crystal structures of human GGT1 (hGGT1) that show conformational changes within the active site as the enzyme progresses from the free enzyme to inhibitor-bound tetrahedral transition states and finally to the glutamate-bound structure prior to the release of this final product of the reaction. (osti.gov)
  • biochemistry
  • Finally, my third project involves more fundamental biochemistry in that we closely examine facets of molecular recognition such as conformational changes induced by ligand binding, and the role of interstitial water. (illinois.edu)
  • site
  • The serine-borate-bound hGGT1 crystal structure demonstrates that serine-borate occupies the active site of the enzyme, resulting in an enzyme-inhibitor complex that replicates the enzyme's tetrahedral intermediate/transition state. (osti.gov)
  • To test the predictive value of these models, all four stereoisomers of the antagonist 1-(phenanthren-2-carbonyl) piperazine-2,3-dicarboxylic acid (PPDA) were docked into the NR2B glutamate-binding site model. (aspetjournals.org)
  • Starting from postnatal day 15, binding site density in the molecular layer of lobules VIb and VII of the vermis was lower than in other lobules. (muscimol.xyz)
  • interactions
  • The structure of GGsTop-bound hGGT1 reveals its interactions with the enzyme and why neutral phosphonate diesters are more potent inhibitors than monoanionic phosphonates. (osti.gov)
  • enzyme
  • The following work focuses on one particular enzyme, glutamate racemase. (illinois.edu)
  • Glutamate racemase is an essential and non-redundant enzyme in all species of bacteria, and inhibition of this enzyme results in cell wall degradation, followed by imminent cell death. (illinois.edu)