Delayed expression of in vivo restriction activity following conjugal transfer of Escherichia coli hsdK (restriction-modification) genes.

Abstract:

:Following conjugal transfer of the hsdK genes (hsdRK, hsdMK, and hsdSK) of Escherichia coli K-12, restriction activity was first detected only after approximately 15 generations, whereas modification activity was observed immediately. This sequential expression explains the establishment of hsdK genes in a nonmodified host and suggests regulation of restriction activity after conjugal transfer.

journal_name

J Bacteriol

journal_title

Journal of bacteriology

authors

Prakash-Cheng A,Ryu J

doi

10.1128/jb.175.15.4905-4906.1993

subject

Has Abstract

pub_date

1993-08-01 00:00:00

pages

4905-6

issue

15

eissn

0021-9193

issn

1098-5530

journal_volume

175

pub_type

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