Reevaluation of the promoter structure of the class 3 flagellar operons of Escherichia coli and Salmonella.
- 1 January 1999
- journal article
- Published by Genetics Society of Japan in Genes & Genetic Systems
- Vol. 74 (3), 113-116
- https://doi.org/10.1266/ggs.74.113
Abstract
Flagellar class 3 operons of Escherichia coli and Salmonella are transcribed by RNA polymerase containing sigma 28. The consensus sequence of the sigma 28-dependent promoters was believed to be TAAA N15 GCCGATAA. In this study, we found that the E. coli genome contains a large number of sequences homologous to this consensus. However, we showed that they do not always exert a sigma 28-dependent promoter activity. We compare more carefully the sequences of the class 3 flagellar promoters and propose a revised structure of the sigma 28-dependent promoters as TAAAGTTT N11 GCCGATAA.Keywords
This publication has 17 references indexed in Scilit:
- Structure and expression of the fliA operon of Salmonella typhimuriumMicrobiology, 1999
- Transcription Initiation at the Flagellin Promoter by RNA Polymerase Carrying ς28 from Salmonella typhimuriumPublished by Elsevier ,1999
- Factor Independent Activation of rrnB P1Journal of Molecular Biology, 1994
- Analysis of the Escherichia coli Genome: DNA Sequence of the Region from 84.5 to 86.5 MinutesScience, 1992
- Gene fliA encodes an alternative sigma factor specific for flagellar operons in Salmonella typhimuriumMolecular Genetics and Genomics, 1990
- Isolation and characterization of Escherichia coli hag operator mutants whose hag48 expression has become repressible by a Salmonella H1 repressorMolecular Genetics and Genomics, 1989
- Secondary sigma factor controls transcription of flagellar and chemotaxis genes in Escherichia coli.Proceedings of the National Academy of Sciences, 1989
- Structure And Function Of Bacterial Sigma FactorsAnnual Review of Biochemistry, 1988
- DNA sequence analysis suggests that expression of flagellar and chemotaxis genes in Escherichia coli and Salmonella typhimurium is controlled by an alternative sigma factor.Proceedings of the National Academy of Sciences, 1987
- Plasmid vectors for the selection of promotersGene, 1984