The role of OmpC and OmpF in acidic resistance in Escherichia coli.

Abstract:

:The roles of OmpC and OmpF in acidic resistance (AR) were examined. When ompC and ompF were deleted, AR was decreased. The decreased level of AR seen in the mutant that was deficient in ompC and ompF was elevated by the addition of glutamate, but not by the addition of arginine or lysine. The expression levels of adiA and cadB were diminished by the deletion of ompC and ompF, and the conversion of arginine to agmatine and lysine to cadaverine by intact cells were reduced in the mutant. The expression of gadA/gadB was not affected by the deletion of ompC and ompF. These results suggest that the transport of arginine, lysine, and their decarboxylated products through OmpC and/or OmpF is essential for the survival of Escherichia coli cells under extremely acidic conditions.

journal_name

Biol Pharm Bull

authors

Bekhit A,Fukamachi T,Saito H,Kobayashi H

doi

10.1248/bpb.34.330

subject

Has Abstract

pub_date

2011-01-01 00:00:00

pages

330-4

issue

3

eissn

0918-6158

issn

1347-5215

pii

JST.JSTAGE/bpb/34.330

journal_volume

34

pub_type

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