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Campylobacter jejuni gene cj0511 encodes a serine peptidase essential for colonisation.


ABSTRACT: According to MEROPS peptidase database, Campylobacter species encode 64 predicted peptidases. However, proteolytic properties of only a few of these proteins have been confirmed experimentally. In this study we identified and characterised a Campylobacter jejuni gene cj0511 encoding a novel peptidase. The proteolytic activity associated with this enzyme was demonstrated in cell lysates. Moreover, enzymatic studies conducted with a purified protein confirmed a prediction of it being a serine peptidase. Furthermore, cj0511 mutant was found to be severely attenuated in chicken colonisation model, suggesting a role of the Cj0511 protein in infection.

SUBMITTER: Karlyshev AV 

PROVIDER: S-EPMC4050187 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Campylobacter jejuni gene cj0511 encodes a serine peptidase essential for colonisation.

Karlyshev A V AV   Thacker G G   Jones M A MA   Clements M O MO   Wren B W BW  

FEBS open bio 20140509


According to MEROPS peptidase database, Campylobacter species encode 64 predicted peptidases. However, proteolytic properties of only a few of these proteins have been confirmed experimentally. In this study we identified and characterised a Campylobacter jejuni gene cj0511 encoding a novel peptidase. The proteolytic activity associated with this enzyme was demonstrated in cell lysates. Moreover, enzymatic studies conducted with a purified protein confirmed a prediction of it being a serine pept  ...[more]

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