A novel chromatin tether domain controls topoisomerase IIα dynamics and mitotic chromosome formation-Reference-Cited by-同舟云学术

A novel chromatin tether domain controls topoisomerase IIα dynamics and mitotic chromosome formation

Published:2013-11-11 Issue:3 Volume:203 Page:471-486
ISSN:1540-8140
Container-title:Journal of Cell Biology
language:en
Short-container-title:

Author:

Lane Andrew B.¹,Giménez-Abián Juan F.¹,Clarke Duncan J.¹

Affiliation:

1. Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN 55455

Abstract

DNA topoisomerase IIα (Topo IIα) is the target of an important class of anticancer drugs, but tumor cells can become resistant by reducing the association of the enzyme with chromosomes. Here we describe a critical mechanism of chromatin recruitment and exchange that relies on a novel chromatin tether (ChT) domain and mediates interaction with histone H3 and DNA. We show that the ChT domain controls the residence time of Topo IIα on chromatin in mitosis and is necessary for the formation of mitotic chromosomes. Our data suggest that the dynamics of Topo IIα on chromosomes are important for successful mitosis and implicate histone tail posttranslational modifications in regulating Topo IIα.

Publisher

Rockefeller University Press

Subject

Cell Biology

Link

http://rupress.org/jcb/article-pdf/203/3/471/1361976/jcb_201303045.pdf

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