Tol

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Tol is a multiprotein complex consisting of 5 proteins encoded by the genes ''[[tolQ]]''
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The Tol system, also known as Tol-Pal, is a multiprotein complex in the cell envelope of many Gram-negative bacteria. It contains 7 proteins organised in two operons.
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*[[TolQ]]
*[[TolR]]
*[[TolR]]
*[[TolA]]
*[[TolA]]

Revision as of 15:23, 3 December 2010

The Tol system, also known as Tol-Pal, is a multiprotein complex in the cell envelope of many Gram-negative bacteria. It contains 7 proteins organised in two operons.

Contents

Structure

Function

Regulation

It has been shown that the regulation of Tol genes is linked to the cell envelope stability. [1] In studies with E. coli, the tol-pal genes have been induced by RcsC in response to cell envelope stress. [2] RcsC is a transmembrane sensor kinase, and along with the cytoplasmic response regulator RcsB, makes up the RcsBC regulatory system. [3] RcsBC is involved in the regulation of cps genes which code for the biosynthsis machinery of a major componant for the capsula, cholanic acid.

References

  1. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1847374/
  2. http://www.ncbi.nlm.nih.gov/pubmed/8821933
  3. http://jb.asm.org/cgi/content/abstract/187/19/6770

Proteopedia Page Contributors and Editors (what is this?)

Laura McCauley, Michal Harel

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