Journal
CURRENT OPINION IN MICROBIOLOGY
Volume 8, Issue 2, Pages 174-181Publisher
CURRENT BIOLOGY LTD
DOI: 10.1016/j.mib.2005.02.010
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Funding
- Medical Research Council [G117/519] Funding Source: researchfish
- MRC [G117/519] Funding Source: UKRI
- Medical Research Council [G117/519] Funding Source: Medline
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The Tat (twin-arginine translocation) protein export system is found in the cytoplasmic membrane of most prokaryotes; and is dedicated to the transport of folded proteins. The Tat system is now known to be essential for many bacterial processes including energy metabolism, cell wall biosynthesis, the nitrogen-fixing symbiosis and bacterial pathogenesis. Recent studies demonstrate that substrate-specific accessory proteins prevent improperly assembled substrates from interacting with the Tat transporter. During the transport cycle itself substrate proteins bind to a receptor complex in the membrane which then recruits a protein-translocating channel to carry out the transport reaction.
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