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We are deeply saddened by the passing of Amos Bairoch (1957–2025), the creator of PROSITE. We wish to dedicate our latest paper, published shortly before his death, to him. He will always be a source of inspiration to us.
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Amos Bairoch

PROSITE documentation PDOC00878
Bacterial type II secretion system protein C signature


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PURL: https://purl.expasy.org/prosite/documentation/PDOC00878

Description

The secretion pathway (GSP) for the export of proteins (also called the type II pathway) [1] requires a number of protein components. One of them is known as the 'C' protein and has been sequenced in a variety of bacteria such as Aeromonas (gene exeC); Erwinia (gene outC); Escherichia coli (gene yheE); Klebsiella pneumoniae (gene pulC); Pseudomonas aeruginosa (gene xcpS) or Vibrio cholerae (gene epsC).

The size of the 'C' protein is around 270 to 300 amino acids. It apparently contains a single transmembrane domain located in the N-terminal section. The short N-terminal domain is predicted to be cytoplasmic and the large C-terminal domain periplasmic. As a signature pattern, we selected a conserved region in the C-terminal part of these proteins.

Last update:

December 2004 / Pattern and text revised.

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Technical section

PROSITE method (with tools and information) covered by this documentation:

T2SP_C, PS01141; Bacterial type II secretion system protein C signature  (PATTERN)


Reference

1AuthorsSalmond G.P.C. Reeves P.J.
TitleMembrane traffic wardens and protein secretion in gram-negative bacteria.
SourceTrends Biochem. Sci. 18:7-12(1993).
PubMed ID8438237



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