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
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 subtypeRoleCellsBump-and-Hole Engineering Identifies Specific Substrates of Glycosyltransferases in Living Cells
Schumann B, Malaker SA, Wisnovsky SP, Debets MF, Agbay AJ, Fernandez D, Wagner LJS, Lin L, Li Z, Choi J, Fox DM, Peh J, Gray MA, Pedram K, Kohler JJ, Mrksich M, Bertozzi CR. Bump-and-Hole Engineering Identifies Specific Substrates of Glycosyltransferases in Living Cells. Molecular Cell 2020, 78: 824-834.e15. PMID: 32325029, PMCID: PMC7276986, DOI: 10.1016/j.molcel.2020.03.030.Peer-Reviewed Original ResearchConceptsLiving cellsPolypeptide N-acetylgalactosaminyl transferasesCell surface glycomesEssential biological processesComplex biosynthetic machineryMajor physiological processesN-acetylgalactosaminyl transferaseBiosynthetic regulationBiosynthetic machineryGlycosyltransferase familyIndividual glycosyltransferasesProtein glycosylationPosttranslational modificationsGlycan fine structureBiosynthetic pathwayPhysiological contextBiological processesPhysiological processesGlycan structuresSpecific substratesGlycosyltransferasesChemical functionalityExperimental strategiesCellsBiosynthesis