Park, Jinyoung Kwon, Mi-Sun Kim, Eunice EunKyeong Lee, Hyunsook Song, Eun Joo 2024-01-19T23:32:34Z 2024-01-19T23:32:34Z 2021-09-03 2018-02 2041-1723 https://pubs.kist.re.kr/handle/201004/121780 Although approximately 100 deubiquitinating enzymes (DUBs) are encoded in the human genome, very little is known about the DUBs that function in mitosis. Here, we demonstrate that DUB USP35 functions as a mitotic regulator by controlling the protein levels and downstream signaling of Aurora B and the depletion of USP35 eventually leads to several mitotic defects including cytokinesis failures. USP35 binds to and deubiquitinates Aurora B, and inhibits the APC(CDH1)-mediated proteasomal degradation of Aurora B, thus maintaining its steady-state levels during mitosis. In addition, the loss of USP35 decreases the phosphorylation of histone H3-Ser10, an Aurora B substrate. Finally, the transcription factor FoxM1 promotes the expression of USP35, as well as that of Aurora B, during the cell cycle. Our findings suggest that USP35 regulates the stability and function of Aurora B by blocking APC(CDH1)-induced proteasomal degradation, thereby controlling mitotic progression. English Nature Publishing Group USP35 regulates mitotic progression by modulating the stability of Aurora B Article 10.1038/s41467-018-03107-0 1 Nature Communications, v.9 Nature Communications 9 Y scie scopus 000425088000001 2-s2.0-85042213546 Multidisciplinary Sciences Science & Technology - Other Topics Article SPINDLE ASSEMBLY CHECKPOINT HUMAN-CELLS DEUBIQUITINATING ENZYMES ANAPHASE COMPLEX CYTOKINESIS DEGRADATION MITOSIS LIGASE UBIQUITINATION