2023
Bump-and-hole engineering of human polypeptide N-acetylgalactosamine transferases to dissect their protein substrates and glycosylation sites in cells
Calle B, Gonzalez-Rodriguez E, Mahoney K, Cioce A, Bineva-Todd G, Tastan O, Roustan C, Flynn H, Malaker S, Schumann B. Bump-and-hole engineering of human polypeptide N-acetylgalactosamine transferases to dissect their protein substrates and glycosylation sites in cells. STAR Protocols 2023, 4: 101974. PMID: 36633947, PMCID: PMC9843269, DOI: 10.1016/j.xpro.2022.101974.Peer-Reviewed Original ResearchConceptsProtein substratesGlycosylation sitesGalNAc-T familyTransfection of cellsIndividual glycosyltransferasesBioorthogonal reportersN-acetylgalactosamine transferaseSubstrate specificityBiological functionsGalNAc-TsDisease relevanceMolecular biologyComplete detailsGlycosyltransferasesTransferaseCellsBiosynthesisBiologyReporterTransfectionGlycansSubstrateEnzymeHole engineeringSites
2021
Small RNAs are modified with N-glycans and displayed on the surface of living cells
Flynn RA, Pedram K, Malaker SA, Batista PJ, Smith BAH, Johnson AG, George BM, Majzoub K, Villalta PW, Carette JE, Bertozzi CR. Small RNAs are modified with N-glycans and displayed on the surface of living cells. Cell 2021, 184: 3109-3124.e22. PMID: 34004145, PMCID: PMC9097497, DOI: 10.1016/j.cell.2021.04.023.Peer-Reviewed Original ResearchConceptsLiving cellsGlycan biosynthetic machineryDomains of lifeMultiple cell typesRNA biologySmall RNAsExtracellular biologyBiosynthetic machineryBiochemical approachesMammalian speciesBattery of chemicalAnti-dsRNA antibodiesN-glycansCell typesReceptor familyCultured cellsCell surfaceRNAThird scaffoldGlycoRNABiologyMajor targetGlycosylationGlycansSialic acidVectorMOD: Method for Bottom-Up Proteomic Characterization of rAAV Capsid Post-Translational Modifications and Vector Impurities
Rumachik NG, Malaker SA, Paulk NK. VectorMOD: Method for Bottom-Up Proteomic Characterization of rAAV Capsid Post-Translational Modifications and Vector Impurities. Frontiers In Immunology 2021, 12: 657795. PMID: 33868302, PMCID: PMC8047074, DOI: 10.3389/fimmu.2021.657795.Peer-Reviewed Original Research
2020
Generating orthogonal glycosyltransferase and nucleotide sugar pairs as next-generation glycobiology tools
Cioce A, Malaker SA, Schumann B. Generating orthogonal glycosyltransferase and nucleotide sugar pairs as next-generation glycobiology tools. Current Opinion In Chemical Biology 2020, 60: 66-78. PMID: 33125942, PMCID: PMC7955280, DOI: 10.1016/j.cbpa.2020.09.001.Peer-Reviewed Original ResearchConceptsMass spectrometry glycoproteomicsCell surface glycoproteomeProtein glycosylationBiological processesQuantitative biologyMutant glycosyltransferasesGlycoproteomicsDifferent glycansGlycansPrecision toolsGlycosyltransferasesBiosynthesisGlycoproteomeGlycomeGlycosyltransferaseBiologyGlycosylationGlycobiologyLabeling reagentLimited specificityPhysiologySpecificityParticular subtypeRoleCells