2023
Glycoproteomic landscape and structural dynamics of TIM family immune checkpoints enabled by mucinase SmE
Chongsaritsinsuk J, Steigmeyer A, Mahoney K, Rosenfeld M, Lucas T, Smith C, Li A, Ince D, Kearns F, Battison A, Hollenhorst M, Judy Shon D, Tiemeyer K, Attah V, Kwon C, Bertozzi C, Ferracane M, Lemmon M, Amaro R, Malaker S. Glycoproteomic landscape and structural dynamics of TIM family immune checkpoints enabled by mucinase SmE. Nature Communications 2023, 14: 6169. PMID: 37794035, PMCID: PMC10550946, DOI: 10.1038/s41467-023-41756-y.Peer-Reviewed Original ResearchConceptsFamily of proteinsMucin domainO-glycosylationBiological functionsKey regulatorComplex glycansMass spectrometric analysisFunctional relevanceTIM familyDetailed molecular structureCritical roleGlycosylationProteinSpectrometric analysisStructural featuresUnique abilityStructural dynamicsMolecular dynamics simulationsTim-3 functionFamilyPowerful workflowRegulatorImmune cellsCheckpointGlycans
2022
Current strategies for characterization of mucin-domain glycoproteins
Ince D, Lucas TM, Malaker SA. Current strategies for characterization of mucin-domain glycoproteins. Current Opinion In Chemical Biology 2022, 69: 102174. PMID: 35752002, DOI: 10.1016/j.cbpa.2022.102174.Peer-Reviewed Original ResearchConceptsGlycopeptide mimeticsPost-translational modificationsCurrent characterization techniquesCellular glycosylation pathwaysSynthetic methodCharacterization techniquesGlycosylation pathwayMucin domainO-glycosylationBiological functionsGlycoproteomic workflowGlycosylationGlycoproteinExciting avenuesRecent breakthroughsMucin glycoproteinsRecent developmentsRevealing the human mucinome
Malaker SA, Riley NM, Shon DJ, Pedram K, Krishnan V, Dorigo O, Bertozzi CR. Revealing the human mucinome. Nature Communications 2022, 13: 3542. PMID: 35725833, PMCID: PMC9209528, DOI: 10.1038/s41467-022-31062-4.Peer-Reviewed Original ResearchConceptsModular protein domainsKey molecular signaturesProtein domainsTransmembrane proteinDetection of hundredsMucin domainGlycoprotein identificationHuman diseasesMolecular signaturesCell lysatesEnrichment strategyGlycoproteinVivo sourceOverlapping populationsImportant roleDomainStcEProteinLysatesOvarian cancer patientsComplex samples
2019
The mucin-selective protease StcE enables molecular and functional analysis of human cancer-associated mucins
Malaker SA, Pedram K, Ferracane MJ, Bensing BA, Krishnan V, Pett C, Yu J, Woods EC, Kramer JR, Westerlind U, Dorigo O, Bertozzi CR. The mucin-selective protease StcE enables molecular and functional analysis of human cancer-associated mucins. Proceedings Of The National Academy Of Sciences Of The United States Of America 2019, 116: 7278-7287. PMID: 30910957, PMCID: PMC6462054, DOI: 10.1073/pnas.1813020116.Peer-Reviewed Original ResearchConceptsModular protein domainsProtein domainsSecreted proteinsMucin domainFunctional analysisHuman diseasesMucin biologyGlycosylation patternsCultured cellsMolecular levelCell surfaceSequence coverageKey playersBacterial proteasesCancer-associated mucinsDiscrete peptidesBiological ligandsProteaseHuman mucinsGlycoform analysisStcESiglec-9Domain structureMass spectrometryDomain