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© A. Chauhan, JM Ghigo, C. Beloin.
Biofilm formation by Pseudomonas aeruginosa bacteria in Central Venous Catheter. Bacteria are stained in yellow and blood cells in red.
Publication : Molecular and General Genetics

Suppression of the Bgl+ phenotype of a delta hns strain of Escherichia coli by a Bacillus subtilis antiterminator binding site.ite

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Molecular and General Genetics - 01 Apr 1996

Beloin C, Hirschbein L, Le Hégarat F.

Link to Pubmed [PMID] – 8628237

Mol Gen Genet. 1996 Apr 10;250(6):761-6.

Bacillus subtilis, like Escherichia coli, possesses several sets of genes involved in the utilization of beta-glucosides. In E. coli, all these genes are cryptic, including the genes forming the bgl operon, thus leading to a Bgl- phenotype. We screened for B. subtilis chromosomal DNA fragments capable of reverting the Bgl+ phenotype associated with an E. coli hns mutant to the Bgl- wild-type phenotype. One B. subtilis chromosomal fragment having this property was selected. It contained a putative Ribonucleic AntiTerminator binding site (RAT sequence) upstream from the bgl gene. Deletion studies as well as subcloning experiments allowed us to prove that the putative B. subtilis of the E. coli bgl operon. We propose that this repression results from the titration of the BglG antiterminator protein of E. coli bgl operon by our putative B. subtilis bglP RAT sequence. Thus, we report evidence for a new cross interaction between heterologous RAT-antiterminator protein pairs.