Abstract:Mitotic chromosome assembly is essential for faithful chromosome segregation. Despite their salient role directing interphase chromatin organization, little is known about how transcription factors mediate this process during mitosis. Here, we characterize a mitosis-specific role for transcription factor specificity protein 1 (Sp1). Sp1 localizes to mitotic centromeres and auxininduced rapid Sp1 degradation results in chromosome segregation errors and aberrant mitotic progression. These defects are driven by a… Show more
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