Featured Publications
New Insights into Human 17β-Hydroxysteroid Dehydrogenase Type 14: First Crystal Structures in Complex with a Steroidal Ligand and with a Potent Nonsteroidal Inhibitor
Bertoletti N, Braun F, Lepage M, Möller G, Adamski J, Heine A, Klebe G, Marchais-Oberwinkler S. New Insights into Human 17β-Hydroxysteroid Dehydrogenase Type 14: First Crystal Structures in Complex with a Steroidal Ligand and with a Potent Nonsteroidal Inhibitor. Journal Of Medicinal Chemistry 2016, 59: 6961-6967. PMID: 27362750, DOI: 10.1021/acs.jmedchem.6b00293.Peer-Reviewed Original ResearchConceptsCrystal structureStructure-based inhibitor designFirst crystal structureNonsteroidal inhibitorsPotent nonsteroidal inhibitorSDR enzymesInhibitor designHolo formHuman enzymeNatural variantsSteroidal ligandsTernary complexNew insightsComplexesSimilar structureEnzymeStructureType 14InhibitorsLigandsVariants
2019
Mutational and structural studies uncover crucial amino acids determining activity and stability of 17β-HSD14
Badran M, Bertoletti N, Keils A, Heine A, Klebe G, Marchais-Oberwinkler S. Mutational and structural studies uncover crucial amino acids determining activity and stability of 17β-HSD14. The Journal Of Steroid Biochemistry And Molecular Biology 2019, 189: 135-144. PMID: 30836176, DOI: 10.1016/j.jsbmb.2019.02.009.Peer-Reviewed Original ResearchConceptsAmino acidsAdjacent monomersSite-directed mutagenesisCrucial amino acidsIndividual amino acidsEnzymatic functionCatalytic triadEnzyme variantsActive siteTerminal loopPresence of NADDisulfide bridgesNeighboring monomerCatalytic centerX-ray crystallographyDimer formationEnzyme kineticsStructural studiesTyr253His93Gln148EnzymeLatter interactionCys255Type 14
2018
DRONE: Direct Tracking of DNA Cytidine Deamination and Other DNA Modifying Activities
Sasaki T, Kudalkar SN, Bertoletti N, Anderson KS. DRONE: Direct Tracking of DNA Cytidine Deamination and Other DNA Modifying Activities. Analytical Chemistry 2018, 90: 11735-11740. PMID: 30256094, PMCID: PMC6410358, DOI: 10.1021/acs.analchem.8b01405.Peer-Reviewed Original ResearchConceptsDNA modificationsCytidine deaminationDNA cytidine deaminationNovel DNA modificationUltra-high performance liquid chromatographyDNA-modifying enzymesImportant DNA modificationImportant biological rolesCytosine methylationHigh-performance liquid chromatographyPerformance liquid chromatographyBiological roleAntiviral defenseCatalytic polypeptideVersatile detectionOligonucleotide substratesDeamination eventsLiquid chromatographyDirect resolutionUracil conversionAnalytical methodEnzymeDeaminationEnzyme inhibitionDNA modifying activityStructure-based design and profiling of novel 17β-HSD14 inhibitors
Braun F, Bertoletti N, Möller G, Adamski J, Frotscher M, Guragossian N, Gírio P, Le Borgne M, Ettouati L, Falson P, Müller S, Vollmer G, Heine A, Klebe G, Marchais-Oberwinkler S. Structure-based design and profiling of novel 17β-HSD14 inhibitors. European Journal Of Medicinal Chemistry 2018, 155: 61-76. PMID: 29859505, DOI: 10.1016/j.ejmech.2018.05.029.Peer-Reviewed Original ResearchConceptsCrystal structureChemical probesStructure-based optimizationStructure-based designInhibitor-enzyme complexGood selectivity profilePromising chemical probeGood solubilityCompound 1Hydroxyl groupsSubstitution patternPhysiological roleSelectivity profileTarget enzymeNonsteroidal inhibitorsPosition 17EnzymeEstrogen receptor alphaReceptor alphaCompoundsPotent inhibitorInhibitory activityProfilingInhibitorsHighest inhibition