Limiting DNA replication to once and only once.

Abstract:

:In Escherichia coli cells, the origin of chromosomal replication is temporarily inactivated after initiation has occurred. Origin sequestration is the first line of defence against over-initiation, providing a time window during which the initiation potential can be reduced by: (i) titration of DnaA proteins to newly replicated chromosomal elements; (ii) regulation of the activity of the DnaA initiator protein; and (iii) sequestration of the dnaA gene promoter. This review represents the first attempt to consider together older and more recent data on such inactivation mechanisms in order to analyze their contributions to the overall tight replication control observed in vivo. All cells have developed mechanisms for origin inactivation, but those of other bacteria and eukaryotic cells are clearly distinct from those of E. coli. Possible differences and similarities are discussed.

journal_name

EMBO Rep

journal_title

EMBO reports

authors

Boye E,Løbner-Olesen A,Skarstad K

doi

10.1093/embo-reports/kvd116

keywords:

subject

Has Abstract

pub_date

2000-12-01 00:00:00

pages

479-83

issue

6

eissn

1469-221X

issn

1469-3178

journal_volume

1

pub_type

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