2022
Precision analysis of mutant U2AF1 activity reveals deployment of stress granules in myeloid malignancies
Biancon G, Joshi P, Zimmer JT, Hunck T, Gao Y, Lessard MD, Courchaine E, Barentine AES, Machyna M, Botti V, Qin A, Gbyli R, Patel A, Song Y, Kiefer L, Viero G, Neuenkirchen N, Lin H, Bewersdorf J, Simon MD, Neugebauer KM, Tebaldi T, Halene S. Precision analysis of mutant U2AF1 activity reveals deployment of stress granules in myeloid malignancies. Molecular Cell 2022, 82: 1107-1122.e7. PMID: 35303483, PMCID: PMC8988922, DOI: 10.1016/j.molcel.2022.02.025.Peer-Reviewed Original Research
2024
Transcription elongation defects link oncogenic SF3B1 mutations to targetable alterations in chromatin landscape
Boddu P, Gupta A, Roy R, De La Peña Avalos B, Olazabal-Herrero A, Neuenkirchen N, Zimmer J, Chandhok N, King D, Nannya Y, Ogawa S, Lin H, Simon M, Dray E, Kupfer G, Verma A, Neugebauer K, Pillai M. Transcription elongation defects link oncogenic SF3B1 mutations to targetable alterations in chromatin landscape. Molecular Cell 2024, 84: 1475-1495.e18. PMID: 38521065, PMCID: PMC11061666, DOI: 10.1016/j.molcel.2024.02.032.Peer-Reviewed Original ResearchRate of RNA polymerase IIChromatin landscapeElongation defectsElongation rate of RNA polymerase IIImpaired protein-protein interactionsSplicing of pre-messenger RNATranscription elongation defectsRNA polymerase IIProtein-protein interactionsPre-messenger RNACancer-associated mutationsIsogenic cell linesSin3/HDAC complexGene bodiesPolymerase IIChromatin accessibilityH3K4me3 markChromatin changesMutant SF3B1ChromatinMutant mouse modelsEpigenetic disordersEpigenetic factorsHuman diseasesMutant state
2023
Impaired Early Spliceosome Complex Assembly Underlies Gene Body Elongation Transcription Defect in SF3B1K700E
Boddu P, Gupta A, Roy R, De La Pena Avalos B, Herrero A, Zimmer J, Simon M, Chandhok N, King D, Neuenkirchen N, Dray E, Lin H, Kupfer G, Verma A, Neugebauer K, Pillai M. Impaired Early Spliceosome Complex Assembly Underlies Gene Body Elongation Transcription Defect in SF3B1K700E. Blood 2023, 142: 714. DOI: 10.1182/blood-2023-187303.Peer-Reviewed Original ResearchSplicing factorsChIP-seqK562 cell lineKey regulatory genesCell linesSingle mutant alleleNon-denaturing gelsAlternative splicingTranscriptional kineticsRegulatory genesSpliceosome assemblySplicing efficiencyMRNA splicingCRISPR/Progenitor populationsNeomorphic functionsMolecular mechanismsMutant allelesIsoform changesGene editingNovel mechanismMutationsSF mutationsRecurrent mutationsAssembly kinetics