EnvZ functions through OmpR to control porin gene expression in Escherichia coli K-12.

Abstract:

:The regulatory proteins OmpR and EnvZ are both required to activate expression of the genes for the major outer membrane porin proteins, OmpF and OmpC, of Escherichia coli K-12. Here we show that OmpR, under certain conditions, could activate porin expression in the complete absence of EnvZ. In addition, the pleiotropic phenotypes conferred by a particular envZ mutation (envZ473) required the presence of functional OmpR protein. These results lead us to conclude that EnvZ and OmpR act in sequential fashion to activate porin gene expression; i.e., EnvZ modifies or in some way directs OmpR, which in turn acts at the appropriate porin gene promoter.

journal_name

J Bacteriol

journal_title

Journal of bacteriology

authors

Slauch JM,Garrett S,Jackson DE,Silhavy TJ

doi

10.1128/jb.170.1.439-441.1988

subject

Has Abstract

pub_date

1988-01-01 00:00:00

pages

439-41

issue

1

eissn

0021-9193

issn

1098-5530

journal_volume

170

pub_type

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