:: Volume 12, Issue 2 (4-2008) ::
IBJ 2008, 12(2): 67-75 Back to browse issues page
The Effect of Starvation Stress on the Protein Profiles in Flexibacter chinensis
Jamshid Raheb , Shamim Naghdi , Ken P. Flint
Abstract:  
Background: Analysis of many proteins produced during the transition into the stationary phase and under stress conditions (including starvation stress) demonstrated that a number of novel proteins were induced in common to each stress and could be the reason for cross-protection in bacterial cells. It is necessary to investigate the synthesis of these proteins during different stress conditions. Methods: The changes in protein profile of Flexibacter chinensis at various stages of the starvation process and the other stresses were investigated using two-dimensional gel electrophoresis which has proven to be a powerful tool for investigation of the changes in protein profiles under such conditions. Results: Most starvation proteins were synthesized during the early stationary phase and many of these proteins remained during long-term starvation. Some of these proteins were transiently synthesized. The sequencing result of one of the proteins showed that there was a 62.5% identity in 8 amino acids overlapped with the 5’ residue of a 10 kDa chaperon protein which is known to be involved in the starvation stress response in other organisms. Conclusion: There are many proteins synthesized in common with many stresses in Flexibacter chinensis. Some of these proteins must play a major role in the stability of the cell under different stresses.
Keywords: Flexibacter chinensis, Starvation stress, Protein profile
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Raheb J, Naghdi S, Flint K P. The Effect of Starvation Stress on the Protein Profiles in Flexibacter chinensis. IBJ. 2008; 12 (2) :67-75
URL: http://ibj.pasteur.ac.ir/article-1-99-en.html


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