RRC ID 35347
Author Bekhit A, Fukamachi T, Saito H, Kobayashi H.
Title The role of OmpC and OmpF in acidic resistance in Escherichia coli.
Journal Biol. Pharm. Bull.
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.
Volume 34(3)
Pages 330-4
Published 2011
PII JST.JSTAGE/bpb/34.330
PMID 21372380
MeSH Acids Amino Acid Transport Systems / genetics Amino Acid Transport Systems / metabolism Amino Acids / metabolism* Antiporters / genetics Antiporters / metabolism Bacterial Outer Membrane Proteins / genetics Bacterial Outer Membrane Proteins / metabolism* Biological Transport Carboxy-Lyases / genetics Carboxy-Lyases / metabolism Escherichia coli / genetics Escherichia coli / metabolism* Escherichia coli / pathogenicity Escherichia coli Proteins / genetics Escherichia coli Proteins / metabolism* Glutamate Decarboxylase / genetics Glutamate Decarboxylase / metabolism Membrane Proteins / genetics Membrane Proteins / metabolism Mutation Porins / genetics Porins / metabolism* Stress, Physiological / genetics*
IF 1.54
Times Cited 8
Prokaryotes E. coli ?