2023
A dual role for the chromatin reader ORCA/LRWD1 in targeting the origin recognition complex to chromatin
Sahu S, Ekundayo B, Kumar A, Bleichert F. A dual role for the chromatin reader ORCA/LRWD1 in targeting the origin recognition complex to chromatin. The EMBO Journal 2023, 42: embj2023114654. PMID: 37551430, PMCID: PMC10505921, DOI: 10.15252/embj.2023114654.Peer-Reviewed Original ResearchConceptsOrigin recognition complexH4K20 trimethylationHeterochromatin replicationRecognition complexCryo-electron microscopy structureLocal chromatin environmentSpecific histone marksSpecific chromatin contextsMcm2-7 loadingTernary complex assemblyChromatin environmentChromatin marksChromatin contextHistone marksHistone modificationsReplication initiationEukaryotic cellsMicroscopy structureChromatin condensatesORC recruitmentDNA replicationMammalian cellsNucleosomal DNAAromatic cageComplex assembly
2022
A mechanism of origin licensing control through autoinhibition of S. cerevisiae ORC·DNA·Cdc6
Schmidt JM, Yang R, Kumar A, Hunker O, Seebacher J, Bleichert F. A mechanism of origin licensing control through autoinhibition of S. cerevisiae ORC·DNA·Cdc6. Nature Communications 2022, 13: 1059. PMID: 35217664, PMCID: PMC8881611, DOI: 10.1038/s41467-022-28695-w.Peer-Reviewed Original ResearchConceptsOrigin recognition complexS. cerevisiaeCyclin-dependent kinase phosphorylationMcm2-7 loadingN-terminal domainCryo-electron microscopyCDK phosphorylationRecognition complexDNA replicationReplication originsÅ resolutionKinase phosphorylationMechanism of originCdc6Coordinated actionCerevisiaePhosphorylationDNAInhibitory signalsStructural detailsSite regulationRecruitmentOrc6AssemblyCdt1
2019
Mechanisms of replication origin licensing: a structural perspective
Bleichert F. Mechanisms of replication origin licensing: a structural perspective. Current Opinion In Structural Biology 2019, 59: 195-204. PMID: 31630057, DOI: 10.1016/j.sbi.2019.08.007.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsReplicative helicasesKey cell cycle eventsReplication origin licensingReplication start sitesCell cycle eventsOrigin licensingReplicative helicaseReplication initiationInitiation factorsStart siteChromosomal DNAReplicative machineryCycle eventsMolecular approachesSynthesis apparatusHelicasesMachineryStructural perspectiveBidirectional mannerDNAEukaryotesHelicaseRecent advancesDuplicationMechanismOrigins of DNA replication
Ekundayo B, Bleichert F. Origins of DNA replication. PLOS Genetics 2019, 15: e1008320. PMID: 31513569, PMCID: PMC6742236, DOI: 10.1371/journal.pgen.1008320.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsMeSH KeywordsBiological EvolutionCell DivisionChromosomesDNA ReplicationEvolution, MolecularReplication OriginRepliconConceptsKingdoms of lifeDomains of lifeDaughter cellsDNA replicationReplication originsCell divisionAccurate duplicationDaughter strandsGenomic DNAHereditary informationSemiconservative replicationGenetic materialFull complementDNA synthesisDiscrete sitesDNABidirectional mannerReplicationDivergent strategiesChromosomesOrganismsDuplicationOriginCellsStrands
2017
Mechanisms for initiating cellular DNA replication
Bleichert F, Botchan MR, Berger JM. Mechanisms for initiating cellular DNA replication. Science 2017, 355 PMID: 28209641, DOI: 10.1126/science.aah6317.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsMeSH KeywordsArchaeaBacteriaCellsDNA HelicasesDNA ReplicationEukaryotaHelix-Turn-Helix MotifsPhylogenyProtein DomainsConceptsReplicative helicasesDNA replicationRing-shaped hexameric helicasesDNA replication factoriesDNA replication initiationDomains of lifeCellular DNA replicationDNA helixReplisome assemblyReplication initiationMolecular choreographyHexameric helicasesReplication factoriesAccessory proteinsHelicasesDNA synthesisMultistep processDNAHelixReplicationProteinMechanismInitiationAssemblyLoader
2015
Crystal structure of the eukaryotic origin recognition complex
Bleichert F, Botchan MR, Berger JM. Crystal structure of the eukaryotic origin recognition complex. Nature 2015, 519: 321-326. PMID: 25762138, PMCID: PMC4368505, DOI: 10.1038/nature14239.Peer-Reviewed Original ResearchConceptsOrigin recognition complexDrosophila origin recognition complexRecognition complexEukaryotic origin recognition complexHeterohexameric origin recognition complexMini-chromosome maintenance 2Winged-helix domainCatalytic amino acidsCellular DNA replicationWinged-helix foldORC subunitsEncircles DNAHelicase loadingGenomic integrityORC functionDevelopmental controlDNA replicationÅ resolutionDomain interactionsDisrupts interactionsCell cycleMaintenance 2Amino acidsCentral channelUnanticipated features