{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T03:34:02Z","timestamp":1790393642973,"version":"4.1.0"},"reference-count":44,"publisher":"American Society of Hematology","issue":"3","content-domain":{"domain":["ashpublications.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2020,7,16]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Coordination of a number of molecular mechanisms including transcription, alternative splicing, and class switch recombination are required to facilitate development, activation, and survival of B cells. Disruption of these pathways can result in malignant transformation. Recently, next-generation sequencing has identified a number of novel mutations in mantle cell lymphoma (MCL) patients including mutations in the ubiquitin E3 ligase UBR5. Approximately 18% of MCL patients were found to have mutations in UBR5, with the majority of mutations within the HECT domain of the protein that can accept and transfer ubiquitin molecules to the substrate. Determining if UBR5 controls the maturation of B cells is important to fully understand malignant transformation to MCL. To elucidate the role of UBR5 in B-cell maturation and activation, we generated a conditional mutant disrupting UBR5\u2032s C-terminal HECT domain. Loss of the UBR5 HECT domain leads to a block in maturation of B cells in the spleen and upregulation of proteins associated with messenger RNA splicing via the spliceosome. Our studies reveal a novel role of UBR5 in B-cell maturation by stabilization of spliceosome components during B-cell development and suggests UBR5 mutations play a role in MCL transformation.<\/jats:p>","DOI":"10.1182\/blood.2019002102","type":"journal-article","created":{"date-parts":[[2020,4,23]],"date-time":"2020-04-23T21:18:30Z","timestamp":1587676710000},"page":"299-312","update-policy":"https:\/\/doi.org\/10.1182\/blood.2019cm0000","source":"Crossref","is-referenced-by-count":25,"title":["UBR5 HECT domain mutations identified in mantle cell lymphoma control maturation of B cells"],"prefix":"10.1182","volume":"136","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5650-3841","authenticated-orcid":false,"given":"Samantha A.","family":"Swenson","sequence":"first","affiliation":[{"name":"Department of Genetics, Cell Biology, and Anatomy,"},{"name":"Fred and Pamela Buffet Cancer Center,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tyler J.","family":"Gilbreath","sequence":"additional","affiliation":[{"name":"Department of Genetics, Cell Biology, and Anatomy,"},{"name":"Fred and Pamela Buffet Cancer Center,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heather","family":"Vahle","sequence":"additional","affiliation":[{"name":"Department of Genetics, Cell Biology, and Anatomy,"},{"name":"Fred and Pamela Buffet Cancer Center,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R. Willow","family":"Hynes-Smith","sequence":"additional","affiliation":[{"name":"Department of Genetics, Cell Biology, and Anatomy,"},{"name":"Fred and Pamela Buffet Cancer Center,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jared H.","family":"Graham","sequence":"additional","affiliation":[{"name":"Department of Genetics, Cell Biology, and Anatomy,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Henry C.-H.","family":"Law","sequence":"additional","affiliation":[{"name":"Fred and Pamela Buffet Cancer Center,"},{"name":"Eppley Institute, and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0352-5526","authenticated-orcid":false,"given":"Catalina","family":"Amador","sequence":"additional","affiliation":[{"name":"Fred and Pamela Buffet Cancer Center,"},{"name":"Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE; 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