Protein quality control in the bacterial periplasm

<p>Abstract</p> <p>The proper functioning of extracytoplasmic proteins requires their export to, and productive folding in, the correct cellular compartment. All proteins in <it>Escherichia coli </it>are initially synthesized in the cytoplasm, then follow a pathway that...

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Main Authors: Betton Jean-Michel, Miot Marika
Format: Article
Language:English
Published: BMC 2004-05-01
Series:Microbial Cell Factories
Online Access:http://www.microbialcellfactories.com/content/3/1/4
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author Betton Jean-Michel
Miot Marika
author_facet Betton Jean-Michel
Miot Marika
author_sort Betton Jean-Michel
collection DOAJ
description <p>Abstract</p> <p>The proper functioning of extracytoplasmic proteins requires their export to, and productive folding in, the correct cellular compartment. All proteins in <it>Escherichia coli </it>are initially synthesized in the cytoplasm, then follow a pathway that depends upon their ultimate cellular destination. Many proteins destined for the periplasm are synthesized as precursors carrying an N-terminal signal sequence that directs them to the general secretion machinery at the inner membrane. After translocation and signal sequence cleavage, the newly exported mature proteins are folded and assembled in the periplasm. Maintaining quality control over these processes depends on chaperones, folding catalysts, and proteases. This article summarizes the general principles which control protein folding in the bacterial periplasm by focusing on the periplasmic maltose-binding protein.</p>
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spelling doaj.art-d0c70669c25d4263afed52d528c0f5802022-12-21T19:07:25ZengBMCMicrobial Cell Factories1475-28592004-05-0131410.1186/1475-2859-3-4Protein quality control in the bacterial periplasmBetton Jean-MichelMiot Marika<p>Abstract</p> <p>The proper functioning of extracytoplasmic proteins requires their export to, and productive folding in, the correct cellular compartment. All proteins in <it>Escherichia coli </it>are initially synthesized in the cytoplasm, then follow a pathway that depends upon their ultimate cellular destination. Many proteins destined for the periplasm are synthesized as precursors carrying an N-terminal signal sequence that directs them to the general secretion machinery at the inner membrane. After translocation and signal sequence cleavage, the newly exported mature proteins are folded and assembled in the periplasm. Maintaining quality control over these processes depends on chaperones, folding catalysts, and proteases. This article summarizes the general principles which control protein folding in the bacterial periplasm by focusing on the periplasmic maltose-binding protein.</p>http://www.microbialcellfactories.com/content/3/1/4
spellingShingle Betton Jean-Michel
Miot Marika
Protein quality control in the bacterial periplasm
Microbial Cell Factories
title Protein quality control in the bacterial periplasm
title_full Protein quality control in the bacterial periplasm
title_fullStr Protein quality control in the bacterial periplasm
title_full_unstemmed Protein quality control in the bacterial periplasm
title_short Protein quality control in the bacterial periplasm
title_sort protein quality control in the bacterial periplasm
url http://www.microbialcellfactories.com/content/3/1/4
work_keys_str_mv AT bettonjeanmichel proteinqualitycontrolinthebacterialperiplasm
AT miotmarika proteinqualitycontrolinthebacterialperiplasm