2022
SARS-CoV-2 accessory proteins ORF7a and ORF3a use distinct mechanisms to down-regulate MHC-I surface expression
Arshad N, Laurent-Rolle M, Ahmed W, Hsu J, Mitchell S, Pawlak J, Sengupta D, Biswas K, Cresswell P. SARS-CoV-2 accessory proteins ORF7a and ORF3a use distinct mechanisms to down-regulate MHC-I surface expression. Proceedings Of The National Academy Of Sciences Of The United States Of America 2022, 120: e2208525120. PMID: 36574644, PMCID: PMC9910621, DOI: 10.1073/pnas.2208525120.Peer-Reviewed Original ResearchConceptsMHC-I expressionSARS-CoV-2Major histocompatibility complex (MHC) class I moleculesT cell recognitionVirus-infected cellsClass I moleculesAntigen presentationOngoing COVID-19 pandemicHeavy chainImmune evasionViral peptidesSecretory pathwayDistinct mechanismsMHCI moleculesPeptide-MHCInfected cellsCausative agentCell recognitionCD8COVID-19 pandemicViral proteinsEndoplasmic reticulumHuman MHCORF7a
1998
Elucidation of the genetic basis of the antigen presentation defects in the mutant cell line .220 reveals polymorphism and alternative splicing of the tapasin gene
Copeman J, Bangia N, Cross J, Cresswell P. Elucidation of the genetic basis of the antigen presentation defects in the mutant cell line .220 reveals polymorphism and alternative splicing of the tapasin gene. European Journal Of Immunology 1998, 28: 3783-3791. PMID: 9842921, DOI: 10.1002/(sici)1521-4141(199811)28:11<3783::aid-immu3783>3.0.co;2-9.Peer-Reviewed Original ResearchMeSH KeywordsAlternative SplicingAntigen PresentationAntiportersATP Binding Cassette Transporter, Subfamily B, Member 2ATP-Binding Cassette TransportersB-LymphocytesCell LineDNA, ComplementaryEndoplasmic ReticulumExonsHumansImmunoglobulinsMembrane Transport ProteinsMutationPolymorphism, GeneticReverse Transcriptase Polymerase Chain ReactionConceptsMutant cell linesEndoplasmic reticulumAlternative splicingN-terminal 49 amino acidsGenetic basisTapasin geneExon twoWild-type cellsFull-length transcriptsCell linesSingle nucleotide substitutionSignal peptideSecond intronNucleotide substitutionsPhysical associationSplice siteGlycoprotein tapasinPosition 240Amino acidsClass I moleculesSplicingOptimal bindingGenesI moleculesHeterodimers
1990
Invariant chain association with HLA-DR molecules inhibits immunogenic peptide binding
Roche P, Cresswell P. Invariant chain association with HLA-DR molecules inhibits immunogenic peptide binding. Nature 1990, 345: 615-618. PMID: 2190094, DOI: 10.1038/345615a0.Peer-Reviewed Original ResearchConceptsClass II moleculesImmunogenic peptidesMHC moleculesClass II major histocompatibility complex moleculesClass II MHC moleculesMajor histocompatibility complex moleculesClass I MHC moleculesHLA-DR moleculesII MHC moleculesHistocompatibility complex moleculesI MHC moleculesClass I moleculesIntracellular class II moleculesCell surface expressionT lymphocytesPresent immunogenic peptidesClass IIProtein antigensClass IInvariant chain associationI moleculesCell surface glycoproteinSurface expressionInvariant chainFunctional dichotomy
1987
Regulation of HLA Class I and Class II antigen expression
Cresswell P. Regulation of HLA Class I and Class II antigen expression. British Medical Bulletin 1987, 43: 66-80. PMID: 3315102, DOI: 10.1093/oxfordjournals.bmb.a072177.Peer-Reviewed Original ResearchConceptsCell surfaceRegulatory genesTranscriptional levelHybridisation experimentsIntracellular transportThird glycoproteinHeterodimeric glycoproteinCell typesChondroitin sulfate proteoglycanEfficient assemblyCell linesSulfate proteoglycanEnhanced expressionT cell linesGenesClass IExpressionTissue distributionRegulationLymphoblastoid linesGlycoproteinUnusual complexityClass I moleculesInvariant chainBiosynthesis