Isolation and characterization of ΔompB strains of Escherichia coli by a general method based on gene fusions

S. Garrett, R. K. Taylor, T. J. Silhavy, M. L. Berman

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

We isolated a series of ΔompR ΔenvZ mutants by inducing a strain carrying a λ prophage in the closely linked gene malP and screening the bacterial survivors for loss of the major outer membrane porins OmpF and OmpC. Characterization of these deletion strains showed that both OmpR and envZ were necessary for transcription of ompF and ompC and that neither gene was essential for cell viability. Moreover, the deletion strains did not exhibit the pleiotropic membrane protein deficiency observed with certain envZ mutants. The method described should allow the simple isolation of deletions in any region of the chromosome.

Original languageEnglish (US)
Pages (from-to)840-844
Number of pages5
JournalJournal of bacteriology
Volume162
Issue number2
StatePublished - Jan 1 1985
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Molecular Biology

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