Sarah Slavoff
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About
Titles
Associate Professor Tenure of Chemistry and of Molecular Biophysics and Biochemistry
Appointments
Molecular Biophysics and Biochemistry
Associate Professor on TermSecondary
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Research
Publications
Featured Publications
Mapping subcellular localizations of unannotated microproteins and alternative proteins with MicroID
Na Z, Dai X, Zheng SJ, Bryant CJ, Loh KH, Su H, Luo Y, Buhagiar AF, Cao X, Baserga SJ, Chen S, Slavoff SA. Mapping subcellular localizations of unannotated microproteins and alternative proteins with MicroID. Molecular Cell 2022, 82: 2900-2911.e7. PMID: 35905735, PMCID: PMC9662605, DOI: 10.1016/j.molcel.2022.06.035.Peer-Reviewed Original ResearchConceptsSubcellular localizationProximity biotinylationSmall open reading framesAlternative proteinsOpen reading frameHigh-throughput technologiesSubnuclear organellesCanonical proteinsRRNA transcriptionSubcellular compartmentsReading frameProteogenomic identificationProtein compositionAmino acidsMicroproteinsProteinBiotinylationLocalizationTurboIDTranscriptionOrganellesMouse modelPolypeptideNucleoliExpressionNascent alt-protein chemoproteomics reveals a pre-60S assembly checkpoint inhibitor
Cao X, Khitun A, Harold CM, Bryant CJ, Zheng SJ, Baserga SJ, Slavoff SA. Nascent alt-protein chemoproteomics reveals a pre-60S assembly checkpoint inhibitor. Nature Chemical Biology 2022, 18: 643-651. PMID: 35393574, PMCID: PMC9423127, DOI: 10.1038/s41589-022-01003-9.Peer-Reviewed Original ResearchConceptsRibosomal subunitDNA damage stressImportant cellular rolesGlobal protein synthesisN-terminal extensionCellular rolesCanonical proteinsHuman cellsProtein synthesisAlternative proteinsCell proliferationChemoproteomicsDamage stressSubunitsProteinAssemblyInhibitorsHypothesis generationMicroproteinsCytoplasmProliferationCellsExportDepletionAlt-RPL36 downregulates the PI3K-AKT-mTOR signaling pathway by interacting with TMEM24
Cao X, Khitun A, Luo Y, Na Z, Phoodokmai T, Sappakhaw K, Olatunji E, Uttamapinant C, Slavoff SA. Alt-RPL36 downregulates the PI3K-AKT-mTOR signaling pathway by interacting with TMEM24. Nature Communications 2021, 12: 508. PMID: 33479206, PMCID: PMC7820019, DOI: 10.1038/s41467-020-20841-6.Peer-Reviewed Original ResearchMeSH KeywordsAlternative SplicingAmino Acid SequenceBase SequenceBiological TransportCell MembraneDown-RegulationEndoplasmic ReticulumHEK293 CellsHumansMembrane ProteinsMutationPhosphatidylinositol 3-KinasesPhosphatidylinositol 4,5-DiphosphateProtein BindingProto-Oncogene Proteins c-aktRibosomal ProteinsSignal TransductionTOR Serine-Threonine KinasesConceptsPI3K-AktEndoplasmic reticulumMTOR signalingHuman gene functionAlternative open reading framesOpen reading framePI3K signalingDifferent molecular mechanismsCanonical proteinsGene functionCell sizeReading framePrecursor phosphatidylinositolPlasma membraneTMEM24Upstream regulatorMolecular mechanismsPhosphoserine residuesK signalingPoint mutationsSignalingPhosphatidylinositolProteinReticulumRPL36
2021
Phosphorylation of a Human Microprotein Promotes Dissociation of Biomolecular Condensates
Na Z, Luo Y, Cui DS, Khitun A, Smelyansky S, Loria JP, Slavoff SA. Phosphorylation of a Human Microprotein Promotes Dissociation of Biomolecular Condensates. Journal Of The American Chemical Society 2021, 143: 12675-12687. PMID: 34346674, PMCID: PMC8564862, DOI: 10.1021/jacs.1c05386.Peer-Reviewed Original ResearchConceptsMembraneless organellesSmall open reading framesP-body dynamicsLiquid-liquid phase separationOpen reading frameGrowth factor signalingPresence of RNAEvolutionary conservationP-bodiesCellular processesCell divisionReading frameProteogenomic identificationFactor signalingMacromolecular complexesBiomolecular condensatesSecondary structureAmino acidsCell growthMicroproteinsPhosphorylationCell proliferationOrganellesBiophysical processesProliferation
2020
Discovery of cellular substrates of human RNA-decapping enzyme DCP2 using a stapled bicyclic peptide inhibitor
Luo Y, Schofield JA, Na Z, Hann T, Simon MD, Slavoff SA. Discovery of cellular substrates of human RNA-decapping enzyme DCP2 using a stapled bicyclic peptide inhibitor. Cell Chemical Biology 2020, 28: 463-474.e7. PMID: 33357462, PMCID: PMC8052284, DOI: 10.1016/j.chembiol.2020.12.003.Peer-Reviewed Original ResearchConceptsRNA decayEnzyme DCP2P-bodiesDCP2Genetic approachesRNA substratesBicyclic peptide inhibitorsHuman RNAExpression changesCellular substratesPhage display selectionSelective chemical inhibitorsChemical inhibitorsHuman cellsGenetic ablationBicyclic peptide ligandsPeptide inhibitorCP21Display selectionPeptide ligandsHigh affinityRegulomeTranscriptionInhibitorsPowerful toolA Genetic Code Expansion‐Derived Molecular Beacon for the Detection of Intracellular Amyloid‐β Peptide Generation
Sappakhaw K, Jantarug K, Slavoff S, Israsena N, Uttamapinant C. A Genetic Code Expansion‐Derived Molecular Beacon for the Detection of Intracellular Amyloid‐β Peptide Generation. Angewandte Chemie 2020, 133: 3980-3985. PMID: 38504667, PMCID: PMC10946459, DOI: 10.1002/ange.202010703.Peer-Reviewed Original ResearchDiverse biological functionsAmyloid precursor proteinProteolytic proteoformsEndocytic pathwayGenetic taggingBiological functionsProtein precursorLiving cellsProteolytic processingMolecular beacon designPrecursor proteinCellular studiesLabeling strategyProteoformsMolecular beaconsAmyloid-β peptide generationBiogenesisImportant rolePeptide generationBeacon designPolypeptideReporterProteinAlzheimer's diseasePathwayThe NBDY Microprotein Regulates Cellular RNA Decapping
Na Z, Luo Y, Schofield JA, Smelyansky S, Khitun A, Muthukumar S, Valkov E, Simon MD, Slavoff SA. The NBDY Microprotein Regulates Cellular RNA Decapping. Biochemistry 2020, 59: 4131-4142. PMID: 33059440, PMCID: PMC7682656, DOI: 10.1021/acs.biochem.0c00672.Peer-Reviewed Original ResearchConceptsP-bodiesNonsense-mediated decay factorsKO cellsSmall open reading framesCytoplasmic ribonucleoprotein granulesOpen reading frameSubstrate transcriptsCellular transcriptomeRibonucleoprotein granulesTarget transcriptsRNA stabilityKnockout cellsUTR lengthReading frameGlobal profilingProteogenomic identificationMacromolecular complexesHuman RNACellular RNACytoplasmic RNAGene stabilityAmino acidsCell growthMicroproteinsTranscriptsComparative Proteomic Profiling of Unannotated Microproteins and Alternative Proteins in Human Cell Lines
Cao X, Khitun A, Na Z, Dumitrescu DG, Kubica M, Olatunji E, Slavoff SA. Comparative Proteomic Profiling of Unannotated Microproteins and Alternative Proteins in Human Cell Lines. Journal Of Proteome Research 2020, 19: 3418-3426. PMID: 32449352, PMCID: PMC7429271, DOI: 10.1021/acs.jproteome.0c00254.Peer-Reviewed Original ResearchConceptsRibosome profilingHuman cell linesQuantitative mass spectrometry-based proteomicsCell linesMass spectrometry-based proteomicsLabel-free quantitative proteomicsComplex human proteomeLabel-free comparative proteomicsAlternative open reading framesStress-dependent expressionSpectrometry-based proteomicsTissue-specific expressionOpen reading frameComparative proteomic profilingUnannotated ORFsComparative proteomicsUnannotated proteinsMammalian cellsHuman proteomeQuantitative proteomicsDifferential translationReading frameProteomic profilingHuman leukemia cell linesRegulated expressionGlobal Profiling of Cellular Substrates of Human Dcp2
Luo Y, Schofield J, Simon MD, Slavoff SA. Global Profiling of Cellular Substrates of Human Dcp2. Biochemistry 2020, 59: 4176-4188. PMID: 32365300, PMCID: PMC7641959, DOI: 10.1021/acs.biochem.0c00069.Peer-Reviewed Original ResearchConceptsDecapping enzymeFirst committed stepCellular transcriptsP-bodiesRNA decayCommitted stepHuman transcriptomeMammalian cellsMolecular marksKnockout cellsGlobal profilingConsensus sequenceCellular substratesDCP2Human cellsTranscriptsEnzymeEnzyme substrateCellsDistinct subsetsTranscriptomeAdditive effectEnrichmentRNACytoplasmNon-AUG start codons: Expanding and regulating the small and alternative ORFeome
Cao X, Slavoff SA. Non-AUG start codons: Expanding and regulating the small and alternative ORFeome. Experimental Cell Research 2020, 391: 111973. PMID: 32209305, PMCID: PMC7256928, DOI: 10.1016/j.yexcr.2020.111973.Peer-Reviewed Original ResearchConceptsSmall open reading framesFunctional small open reading framesStart codonClasses of genesImportant biological processesNon-AUG start codonsOpen reading frameNon-AUG codonsStart codon usageAUG start codonEukaryotic genomesGenomic toolsRibosome profilingNovel genesCodon usageReading frameProteomic studiesBiological processesSequence propertiesCodonGenesPresence of thousandsEukaryotesProkaryotes