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Journal of Bacteriology, March 2001, p. 1801-1804, Vol. 183, No. 5
Centre for Metalloprotein Spectroscopy and
Biology, School of Biological Sciences, University of East Anglia,
Norwich NR4 7TJ,1 and Department of
Molecular Microbiology, John Innes Centre, Norwich NR4
7UH,2 United Kingdom
Received 7 September 2000/Accepted 30 November 2000
The transcription start sites for the tatABCD and
tatE loci, encoding components of the Tat (twin-arginine
translocase) protein export pathway, have been identified. Expression
studies indicate that the tatABCD and tatE
transcription units are expressed constitutively. Translational fusion
experiments suggest that TatA is synthesized at a much higher level
than the other Tat proteins.
0021-9193/01/$04.00+0 DOI: 10.1128/JB.183.5.1801-1804.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
Constitutive Expression of Escherichia coli
tat Genes Indicates an Important Role for the Twin-Arginine
Translocase during Aerobic and Anaerobic Growth
*
Corresponding author. Mailing address: Department of
Molecular Microbiology, John Innes Centre, Norwich NR4 7UH, United
Kingdom. Phone: 44 (0)1603 450726. Fax: 44 (0)1603 450018. E-mail:
tracy.palmer{at}bbsrc.ac.uk.
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