Simple topology: FtsK-directed recombination at the dif site.

Abstract:

:FtsK is a multifunctional protein, which, in Escherichia coli, co-ordinates the essential functions of cell division, DNA unlinking and chromosome segregation. Its C-terminus is a DNA translocase, the fastest yet characterized, which acts as a septum-localized DNA pump. FtsK's C-terminus also interacts with the XerCD site-specific recombinases which act at the dif site, located in the terminus region. The motor domain of FtsK is an active translocase in vitro, and, when incubated with XerCD and a supercoiled plasmid containing two dif sites, recombination occurs to give unlinked circular products. Despite years of research the mechanism for this novel form of topological filter remains unknown.

journal_name

Biochem Soc Trans

authors

Grainge I

doi

10.1042/BST20120299

subject

Has Abstract

pub_date

2013-04-01 00:00:00

pages

595-600

issue

2

eissn

0300-5127

issn

1470-8752

pii

BST20120299

journal_volume

41

pub_type

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