2021
Translational shutdown and evasion of the innate immune response by SARS-CoV-2 NSP14 protein
Hsu JC, Laurent-Rolle M, Pawlak JB, Wilen CB, Cresswell P. Translational shutdown and evasion of the innate immune response by SARS-CoV-2 NSP14 protein. Proceedings Of The National Academy Of Sciences Of The United States Of America 2021, 118: e2101161118. PMID: 34045361, PMCID: PMC8214666, DOI: 10.1073/pnas.2101161118.Peer-Reviewed Original ResearchConceptsSARS-CoV-2Interferon-stimulated genesImmune responseSevere acute respiratory syndrome coronavirus 2Acute respiratory syndrome coronavirus 2Host protein synthesisRespiratory syndrome coronavirus 2Syndrome coronavirus 2Innate immune responseUnprecedented global health crisisCoronavirus 2N7-methyltransferase activityOngoing COVID-19 pandemicHuman coronavirusesTranslational shutdownVirus replicationNsp14 proteinGlobal health crisisProtein synthesisInhibition activityCausative agentCOVID-19COVID-19 pandemicSARS-CoV-2 nsp14Dependent induction
2019
Bile Salts Alter the Mouse Norovirus Capsid Conformation: Possible Implications for Cell Attachment and Immune Evasion
Sherman MB, Williams AN, Smith HQ, Nelson C, Wilen CB, Fremont DH, Virgin HW, Smith TJ. Bile Salts Alter the Mouse Norovirus Capsid Conformation: Possible Implications for Cell Attachment and Immune Evasion. Journal Of Virology 2019, 93: 10.1128/jvi.00970-19. PMID: 31341042, PMCID: PMC6744230, DOI: 10.1128/jvi.00970-19.Peer-Reviewed Original ResearchConceptsCryo-EM structureP domainCryo-electron microscopy structureHigh-resolution cryo-EM structuresConformational changesImportant biological rolesSmall conformational changesMicroscopy structureHuman Norwalk virusCell attachmentAdjacent subunitsBiological roleIcosahedral capsidCapsid shellRNA virusesCapsid proteinBinding sitesIntrinsic affinityReceptor binding sitesCapsid conformationUnusual structureImmune evasionShell domainTarget cellsReceptorsMouse Norovirus Infection Arrests Host Cell Translation Uncoupled from the Stress Granule-PKR-eIF2α Axis
Fritzlar S, Aktepe TE, Chao YW, Kenney ND, McAllaster MR, Wilen CB, White PA, Mackenzie JM. Mouse Norovirus Infection Arrests Host Cell Translation Uncoupled from the Stress Granule-PKR-eIF2α Axis. MBio 2019, 10: 10.1128/mbio.00960-19. PMID: 31213553, PMCID: PMC6581855, DOI: 10.1128/mbio.00960-19.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCaliciviridae InfectionsCytoplasmic GranulesDNA HelicasesEIF-2 KinaseEukaryotic Initiation Factor-2Host-Pathogen InteractionsImmune EvasionImmunity, InnateMicePhosphorylationPoly-ADP-Ribose Binding ProteinsProtein BiosynthesisRNA HelicasesRNA Recognition Motif ProteinsViral ProteinsVirus ReplicationConceptsIntegrated stress responseProtein kinase RStress granulesProtein translationCellular homeostasisProtein G3BP1Host translationCytoplasmic RNA granulesMNV replication complexHijack host machineryPhosphorylation of eIF2αHost protein translationCellular response systemsHost cell translationEukaryotic initiation factorMNV infectionPhosphorylated eukaryotic initiation factorRNA granulesTranslational controlSG formationInitiation factorsSG nucleationTranslational arrestHost machineryVirus replicationA Secreted Viral Nonstructural Protein Determines Intestinal Norovirus Pathogenesis
Lee S, Liu H, Wilen CB, Sychev ZE, Desai C, Hykes BL, Orchard RC, McCune BT, Kim KW, Nice TJ, Handley SA, Baldridge MT, Amarasinghe GK, Virgin HW. A Secreted Viral Nonstructural Protein Determines Intestinal Norovirus Pathogenesis. Cell Host & Microbe 2019, 25: 845-857.e5. PMID: 31130511, PMCID: PMC6622463, DOI: 10.1016/j.chom.2019.04.005.Peer-Reviewed Original ResearchConceptsNS1 secretionTuft cellsIFN-λ responseAnti-capsid antibodiesMNoV infectionAcute infectionIntestinal infectionsLack of inductionPersistent infectionNorovirus pathogenesisCaspase-3 cleavageIFN responseInfectionSecretionViral nonstructural proteinsIFNProtein 1/2Viral proteinsMurine norovirusNS1Lower percentageNonstructural proteinsCellsLow numberVaccination