0000000001007919

AUTHOR

T. Alwyn Jones

showing 2 related works from this author

Structure of Rhodococcus erythropolis limonene-1,2-epoxide hydrolase reveals a novel active site

2003

Epoxide hydrolases are essential for the processing of epoxide-containing compounds in detoxification or metabolism. The classic epoxide hydrolases have an alpha/beta hydrolase fold and act via a two-step reaction mechanism including an enzyme-substrate intermediate. We report here the structure of the limonene-1,2-epoxide hydrolase from Rhodococcus erythropolis, solved using single-wavelength anomalous dispersion from a selenomethionine-substituted protein and refined at 1.2 A resolution. This enzyme represents a completely different structure and a novel one-step mechanism. The fold features a highly curved six-stranded mixed beta-sheet, with four alpha-helices packed onto it to create a …

Models MolecularAFSG Stafafdelingen (WUATV)10050 Institute of Pharmacology and Toxicologydrug protein bindingEnantioselectivityEpoxide hydrolaseCrystallography X-Rayuncultured actinomyceteCatalytic Domain2400 General Immunology and Microbiologyalpha helixRhodococcuscholesterol epoxide hydrolasenaphthalene 12-dioxygenasedcl14limonene 12 epoxide hydrolaseEpoxide hydrolaseBacteria (microorganisms)delta(5)-3-ketosteroid isomeraseEpoxide HydrolasesLimonene-12-epoxide hydrolaseGeneral Neurosciencearticle2800 General NeuroscienceActinobacteria (class)Articlesagrobacterium-radiobacterEnzyme structureRecombinant Proteinsunclassified drugenzyme structurereaction analysisBiochemistrypriority journalenzyme active siteMechanism2-dioxygenaseDimerizationBiotechnologychemical reactioncrystal structureaspergillus-nigermacromolecular structuresStereochemistrybeta sheetvalpromideMolecular Sequence Data610 Medicine & healthGenetics and Molecular BiologyBiologyGeneral Biochemistry Genetics and Molecular BiologyBacterial Proteinssite directed mutagenesis1300 General Biochemistry Genetics and Molecular BiologyHydrolase1312 Molecular BiologyAmino Acid SequencedetoxificationRhodococcus erythropolisBiologyMonoterpene degradationMolecular Biologyprotein data-bankenzyme substrate complexEnzyme substrate complexnonhumancatalysisSequence Homology Amino AcidGeneral Immunology and Microbiologybacterial enzymeActive sitecrystal-structureAFSG Staff Departments (WUATV)enzyme metabolismProtein SubunitsenzymeEpoxide HydrolasesGeneral Biochemistrybiology.proteinMutagenesis Site-Directed570 Life sciences; biologyselenomethioninenaphthalene 1Alpha helix
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The telltale structures of epoxide hydrolases.

2003

Traditionally, epoxide hydrolases (EH) have been regarded as xenobiotic-metabolizing enzymes implicated in the detoxification of foreign compounds. They are known to play a key role in the control of potentially genotoxic epoxides that arise during metabolism of many lipophilic compounds. Although this is apparently the main function for the mammalian microsomal epoxide hydrolase (mEH), evidence is now accumulating that the mammalian soluble epoxide hydrolase (sEH), despite its proven role in xenobiotic metabolism, also has a central role in the formation and breakdown of physiological signaling molecules. In addition, a certain class of microbial epoxide hydrolases has recently been identi…

Epoxide hydrolase 2Models MolecularStereochemistryPhosphatase10050 Institute of Pharmacology and Toxicology610 Medicine & health3000 General Pharmacology Toxicology and PharmaceuticsHydrolase2736 Pharmacology (medical)AnimalsHumansPharmacology (medical)Computer SimulationGeneral Pharmacology Toxicology and PharmaceuticsEpoxide hydrolaseBiotransformationchemistry.chemical_classificationEpoxide HydrolasesbiologyActive siteEnzymechemistryBiochemistryMicrosomal epoxide hydrolaseEpoxide Hydrolasesbiology.protein570 Life sciences; biologyEpoxy CompoundsRhizobiumDrug metabolism reviews
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