2023
Substrate-independent activation pathways of the CRISPR-Cas9 HNH nuclease
Wang J, Maschietto F, Qiu T, Arantes P, Skeens E, Palermo G, Lisi G, Batista V. Substrate-independent activation pathways of the CRISPR-Cas9 HNH nuclease. Biophysical Journal 2023, 122: 4635-4644. PMID: 37936350, PMCID: PMC10754686, DOI: 10.1016/j.bpj.2023.11.005.Peer-Reviewed Original ResearchConceptsHNH domainHNH nucleaseHigh fidelity enzymesInduced-fit mechanismActivation pathwayActive stateMolecular dynamics trajectoriesCognate substratesConformation 2Conformational selectionObligate stepAla mutantBackbone amidesΑ-helixSide chainsSingle LysEssential roleNucleasePathwayDynamics trajectoriesResiduesConformationMutantsInterconversion pathwaysCRISPR
2003
Crystal structure of a transcription factor IIIB core interface ternary complex
Juo ZS, Kassavetis GA, Wang J, Geiduschek EP, Sigler PB. Crystal structure of a transcription factor IIIB core interface ternary complex. Nature 2003, 422: 534-539. PMID: 12660736, DOI: 10.1038/nature01534.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceBase SequenceBinding SitesCrystallography, X-RayDNA, FungalFungal ProteinsGenes, FungalHydrogen BondingMacromolecular SubstancesModels, MolecularMolecular Sequence DataNucleic Acid ConformationPromoter Regions, GeneticProtein Structure, TertiaryProtein SubunitsRNA, Small NuclearSaccharomyces cerevisiae ProteinsStatic ElectricitySubstrate SpecificityTATA-Box Binding ProteinTranscription Factor TFIIIBConceptsTranscription factor IIIBGeneral transcription factor TFIIBDomain IIÅ resolution crystal structureTranscription factor TFIIBOpen initiation complexRegion of TBPTFIIB-related factorAmino-terminal halfCarboxy-terminal halfTernary complexResolution crystal structureRegulated transcriptionPromoter DNASequence similarityInitiation complexRNA polymeraseBase pairsBdp1Brf1Essential rolePolymerasePrimary interfaceCrystal structureResidue 435