2024
Rapid Quantification of Protein Secondary Structure Composition from a Single Unassigned 1D 13C Nuclear Magnetic Resonance Spectrum
Li H, Tuttle M, Zilm K, Batista V. Rapid Quantification of Protein Secondary Structure Composition from a Single Unassigned 1D 13C Nuclear Magnetic Resonance Spectrum. Journal Of The American Chemical Society 2024, 146: 27542-27554. PMID: 39322561, DOI: 10.1021/jacs.4c08300.Peer-Reviewed Original ResearchMeSH KeywordsCarbon-13 Magnetic Resonance SpectroscopyNuclear Magnetic Resonance, BiomolecularProtein Structure, SecondaryProteinsConceptsSecondary structure compositionSecondary structureProtein secondary structure compositionEnsemble of secondary structuresSecondary structure elementsThree-dimensional foldC-NMR spectraSecondary structure contentProtein secondary structurePrimary sequenceProtein structureA-helixLiquid-liquid phase separationCharacterization of protein secondary structureMembrane-boundChemical shift assignmentsProteinBenchtop NMR spectrometersNuclear magnetic resonance spectraSolid-state NMRStructure contentRandom coilMagnetic resonance spectraB sheetsStructural compositionA salt bridge of the C‐terminal carboxyl group regulates PHPT1 substrate affinity and catalytic activity
Zavala E, Dansereau S, Burke M, Lipchock J, Maschietto F, Batista V, Loria J. A salt bridge of the C‐terminal carboxyl group regulates PHPT1 substrate affinity and catalytic activity. Protein Science 2024, 33: e5009. PMID: 38747379, PMCID: PMC11094782, DOI: 10.1002/pro.5009.Peer-Reviewed Original ResearchMeSH KeywordsCatalytic DomainHumansMolecular Dynamics SimulationNuclear Magnetic Resonance, BiomolecularPhosphoric Monoester HydrolasesSubstrate SpecificityConceptsCatalytic activityPhenylphosphonic acidAnalysis of molecular dynamics trajectoriesNMR chemical shiftsSalt bridgesMolecular dynamics trajectoriesC-terminal carboxyl groupChemical shiftsCombination of solution NMRMolecular dynamicsGuanidinium moietyCarboxyl groupsPara-nitrophenylphosphateSolution NMRActive site inhibitorsHistidine phosphataseActive siteElectrostatic interactionsDynamics trajectoriesEnzymatic functionC-terminusGlycine residuesSubstrate affinityBiochemical experimentsBinding affinity
2006
Computational Studies of the Primary Phototransduction Event in Visual Rhodopsin
Gascón J, Sproviero E, Batista V. Computational Studies of the Primary Phototransduction Event in Visual Rhodopsin. Accounts Of Chemical Research 2006, 39: 184-193. PMID: 16548507, DOI: 10.1021/ar050027t.Peer-Reviewed Original ResearchMeSH KeywordsIsomerismModels, MolecularNuclear Magnetic Resonance, BiomolecularProtein ConformationRetinal PigmentsRhodopsinSignal TransductionConceptsG protein-coupled receptorsRecent computational studiesPrimary photochemical eventQuantum mechanics/molecular mechanics (QM/MM) hybrid methodsComputational studyPhotochemical eventsEnergy storage mechanismPrototypical G protein-coupled receptorX-ray structureVisual rhodopsinHigh-resolution X-ray structuresBovine visual rhodopsinWater moleculesSpectroscopic changesRetinyl chromophoreStorage mechanismActive siteMolecular rearrangementTrans isomerizationPhototransduction eventsMolecular originIndividual residuesStructural refinementPhototransduction mechanismChromophore