2021
Cryo-EM structures of Escherichia coli cytochrome bo3 reveal bound phospholipids and ubiquinone-8 in a dynamic substrate binding site
Li J, Han L, Vallese F, Ding Z, Choi SK, Hong S, Luo Y, Liu B, Chan CK, Tajkhorshid E, Zhu J, Clarke O, Zhang K, Gennis R. Cryo-EM structures of Escherichia coli cytochrome bo3 reveal bound phospholipids and ubiquinone-8 in a dynamic substrate binding site. Proceedings Of The National Academy Of Sciences Of The United States Of America 2021, 118: e2106750118. PMID: 34417297, PMCID: PMC8403832, DOI: 10.1073/pnas.2106750118.Peer-Reviewed Original ResearchConceptsHydrogen bondsMembrane scaffold protein (MSP) nanodiscsSide chainsMetal redox centerCryo-EM structureInternal water moleculesEscherichia coli cytochrome bo3Facilitate proton transferImidazole side chainIsoprene side chainAccess of waterCryogenic electron microscopyRedox centersWater moleculesProton transferSubunit IAqueous phaseConformation 1Respiratory cytochromesRelated cytochromesHydrophobic grooveUbiquinol oxidaseQuinol oxidaseCytochrome bo3Computational study
2019
Structural basis of antagonism of human APOBEC3F by HIV-1 Vif
Hu Y, Desimmie BA, Nguyen HC, Ziegler SJ, Cheng TC, Chen J, Wang J, Wang H, Zhang K, Pathak VK, Xiong Y. Structural basis of antagonism of human APOBEC3F by HIV-1 Vif. Nature Structural & Molecular Biology 2019, 26: 1176-1183. PMID: 31792451, PMCID: PMC6899190, DOI: 10.1038/s41594-019-0343-6.Peer-Reviewed Original ResearchConceptsHIV-1 VifProtein degradation machineryCryo-EM structureHuman immunodeficiency virus type 1 (HIV-1) replicationCore-binding factor betaUbiquitin-proteasome pathwayRole of CbfβHIV-1 virion infectivity factorType 1 replicationVif-A3 interactionsViral immune evasionDegradation machineryAntiviral APOBEC3Terminal domainVirion infectivity factorStructural basisMolecular mechanismsViral restrictionA3 proteinsMolecular determinantsImmune evasionInfectivity factorFactor betaCellular studiesAntiviral therapeuticsNew interfaces on MiD51 for Drp1 recruitment and regulation
Ma J, Zhai Y, Chen M, Zhang K, Chen Q, Pang X, Sun F. New interfaces on MiD51 for Drp1 recruitment and regulation. PLOS ONE 2019, 14: e0211459. PMID: 30703167, PMCID: PMC6355003, DOI: 10.1371/journal.pone.0211459.Peer-Reviewed Original Research
2017
Crystal structure of E. coli apolipoprotein N-acyl transferase
Lu G, Xu Y, Zhang K, Xiong Y, Li H, Cui L, Wang X, Lou J, Zhai Y, Sun F, Zhang XC. Crystal structure of E. coli apolipoprotein N-acyl transferase. Nature Communications 2017, 8: 15948. PMID: 28885614, PMCID: PMC5500890, DOI: 10.1038/ncomms15948.Peer-Reviewed Original ResearchConceptsApolipoprotein N-acyl transferaseN-acyl transferaseTM domainN-terminal cysteine residueThree-step pathwayGram-negative bacteriaLid loopTransmembrane domainPeriplasmic sideTM helicesCysteine residuesLipid modificationLipid donorCatalytic cavityAcceptor substrateLipid bilayersLipid leafletCatalytic centerAcyl chainsCrystal structurePathwayTransferaseLateral openingDomainProtein
2014
C-terminal motif within Sec7 domain regulates guanine nucleotide exchange activity via tuning protein conformation
Qiu B, Zhang K, Wang S, Sun F. C-terminal motif within Sec7 domain regulates guanine nucleotide exchange activity via tuning protein conformation. Biochemical And Biophysical Research Communications 2014, 446: 380-386. PMID: 24613384, DOI: 10.1016/j.bbrc.2014.02.125.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid MotifsAmino Acid SequenceBinding SitesConserved SequenceCrystallography, X-RayGuanine Nucleotide Exchange FactorsModels, MolecularMolecular Sequence DataMutagenesis, Site-DirectedNuclear Magnetic Resonance, BiomolecularProtein ConformationProtein StabilityProtein Structure, SecondaryRecombinant ProteinsSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSequence Homology, Amino AcidStatic ElectricityStructural Homology, ProteinConceptsGuanine exchange factorSec7 domainARF-GEFCatalytic domainActivity regulationGolgi network membranesNucleotide exchange activityC-terminal motifGEF catalytic activityADP-ribosylation factorCatalytic activity regulationExchange activityActivation of ARFARF-GEFsMembrane trafficExchange factorHelix JOrganelle structureMolecular detailsMutagenesis studiesProtein conformationLoop regionMotifRegulationKey role
2013
Identification of SERPINB1 As a Physiological Inhibitor of Human Granzyme H
Wang L, Li Q, Wu L, Liu S, Zhang Y, Yang X, Zhu P, Zhang H, Zhang K, Lou J, Liu P, Tong L, Sun F, Fan Z. Identification of SERPINB1 As a Physiological Inhibitor of Human Granzyme H. The Journal Of Immunology 2013, 190: 1319-1330. PMID: 23269243, DOI: 10.4049/jimmunol.1202542.Peer-Reviewed Original ResearchCatalysisCell Line, TumorChromatography, GelCrystallography, X-RayCytoplasmic GranulesCytotoxicity, ImmunologicGenetic VectorsGranzymesHumansJurkat CellsKiller Cells, Lymphokine-ActivatedModels, MolecularNeoplasm ProteinsProtein BindingProtein ConformationProtein Interaction MappingRecombinant Fusion ProteinsSerpinsStructure-Activity Relationship
2012
Cryo-EM structure of a transcribing cypovirus
Yang C, Ji G, Liu H, Zhang K, Liu G, Sun F, Zhu P, Cheng L. Cryo-EM structure of a transcribing cypovirus. Proceedings Of The National Academy Of Sciences Of The United States Of America 2012, 109: 6118-6123. PMID: 22492979, PMCID: PMC3341035, DOI: 10.1073/pnas.1200206109.Peer-Reviewed Original ResearchConceptsNascent mRNATurret proteinFamily ReoviridaeCapsid shellConformational changesCapsid proteinMRNA transcriptionCryo-EM structureMajor capsid proteinGood model systemGuanylyltransferase domainTranscription cycleViral capsid proteinsIcosahedral viral capsidsCypovirusGenomic RNACryoelectron microscopyGMP moietyRNA virusesProteinViral capsidTranscriptionMRNAReoviridaeModel system
2011
Autotransporter passenger domain secretion requires a hydrophobic cavity at the extracellular entrance of the β-domain pore
Zhai Y, Zhang K, Huo Y, Zhu Y, Zhou Q, Lu J, Black I, Pang X, Roszak AW, Zhang X, Isaacs NW, Sun F. Autotransporter passenger domain secretion requires a hydrophobic cavity at the extracellular entrance of the β-domain pore. Biochemical Journal 2011, 435: 577-587. PMID: 21306302, DOI: 10.1042/bj20101548.Peer-Reviewed Original ResearchAtomic model of a cypovirus built from cryo-EM structure provides insight into the mechanism of mRNA capping
Cheng L, Sun J, Zhang K, Mou Z, Huang X, Ji G, Sun F, Zhang J, Zhu P. Atomic model of a cypovirus built from cryo-EM structure provides insight into the mechanism of mRNA capping. Proceedings Of The National Academy Of Sciences Of The United States Of America 2011, 108: 1373-1378. PMID: 21220303, PMCID: PMC3029759, DOI: 10.1073/pnas.1014995108.Peer-Reviewed Original ResearchConceptsCytoplasmic polyhedrosis virusDeduced amino acid sequenceCryo-EM structureRNA segment 7Amino acid sequenceMechanisms of mRNANascent mRNAEnzymatic domainsAcid sequenceCryoelectron microscopyFamily ReoviridaeProtein VP5Capsid shellPolyhedrosis virusFull atomic modelsAtomic modelStructural organizationGuanylyltransferaseMRNASegment 7ProteinCypovirus
2010
Crystal Structure of Group II Chaperonin in the Open State
Huo Y, Hu Z, Zhang K, Wang L, Zhai Y, Zhou Q, Lander G, Zhu J, He Y, Pang X, Xu W, Bartlam M, Dong Z, Sun F. Crystal Structure of Group II Chaperonin in the Open State. Structure 2010, 18: 1270-1279. PMID: 20947016, PMCID: PMC3048791, DOI: 10.1016/j.str.2010.07.009.Peer-Reviewed Original ResearchConceptsGroup II chaperoninLid domainConformational changesOpen stateATP-dependent mannerHigh-resolution structuresDetailed conformational changesFunctional cycleThermosomeHydrophobic patchStructural comparisonProtease K digestionChaperoninClosed stateK digestionCrystal structureStructural fittingOpen formComplete crystal structureClosed structureSpeciesDomainProteinATPElectron microscopyFive mutations in N-terminus confer thermostability on mesophilic xylanase
Zhang S, Zhang K, Chen X, Chu X, Sun F, Dong Z. Five mutations in N-terminus confer thermostability on mesophilic xylanase. Biochemical And Biophysical Research Communications 2010, 395: 200-206. PMID: 20361933, DOI: 10.1016/j.bbrc.2010.03.159.Peer-Reviewed Original Research