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© Research
Publication : Research in microbiology

Identification of outer membrane proteins of Vibrio parahaemolyticus and Vibrio alginolyticus altered in response to γ-irradiation or long-term starvation

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Research in microbiology - 28 Oct 2010

Ben Abdallah F, Ellafi A, Lagha R, Bakhrouf A, Namane A, Rousselle JC, Lenormand P, Kallel H

Link to Pubmed [PMID] – 21035543

Res. Microbiol. 2010 Dec;161(10):869-75

Vibrio parahaemolyticus and Vibrio alginolyticus were subjected to γ-irradiation (0.5 kGy) or starvation by incubation for 8 months in seawater to study modifications in their outer membrane protein patterns. After treatment, outer membrane protein profiles of starved or γ-irradiated bacteria were found to be altered when analyzed by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). Altered proteins were identified by mass spectrometry (MS and MS/MS) and analyses revealed that OmpU can be considered a starvation stress-induced protein. In addition, expression of OtnA, OmpW, OmpA and peptidoglycan-associated lipoprotein decreased to non-detectable levels in starved cells. Furthermore, MltA-interacting protein MipA appeared under γ-irradiation or starvation conditions. Thus, it can be considered to be a γ-irradiation, long-term starvation stress protein in some vibrios.

http://www.ncbi.nlm.nih.gov/pubmed/21035543