Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 18, Issue 11, Pages -Publisher
MDPI AG
DOI: 10.3390/ijms18112438
Keywords
Topoisomerase II; SUMO; C-terminal domain; mitosis; Aurora B; Haspin; Claspin; metaphase checkpoint
Funding
- NIH/NIGMS [GM112793]
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DNA Topoisomerase II (Topo II) is a ubiquitous enzyme in eukaryotes that performs the strand passage reaction where a double helix of DNA is passed through a second double helix. This unique reaction is critical for numerous cellular processes. However, the enzyme also possesses a C-terminal domain (CTD) that is largely dispensable for the strand passage reaction but is nevertheless important for the fidelity of cell division. Recent studies have expanded our understanding of the roles of the Topo II CTD, in particular in mitotic mechanisms where the CTD is modified by Small Ubiquitin-like Modifier (SUMO), which in turn provides binding sites for key regulators of mitosis.
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