Bub2 regulation of cytokinesis and septation in budding yeast |
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Authors: | Su Young Park Addie E Cable Jessica Blair Katherine E Stockstill Katie B Shannon |
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Affiliation: | (1) Department of Biological Sciences, Missouri University of Science and Technology, Rolla, MO, USA |
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Abstract: | Background The mitotic exit network (MEN) is required for events at the end of mitosis such as degradation of mitotic cyclins and cytokinesis. Bub2 and its binding partner Bfa1 act as a GTPase activating protein (GAP) to negatively regulate the MEN GTPase Tem1. The Bub2/Bfa1 checkpoint pathway is required to delay the cell cycle in response to mispositioned spindles. In addition to its role in mitotic exit, Tem1 is required for actomyosin ring contraction. |
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