Abstract
Protein phosphorylation in bacteria is important for signaling and metabolic activity. Clostridium acetobutyicum can synthesize high yield of organic solvent under acidic condition. How solventogenesis is regulated at molecular level in this bacterium, is not clearly elucidated yet. We used two dimensional electrophoresis (2-DE) and mass spectrometry to have a differential analysis of the bacterial proteins from Clostridium acetobutylicum at acedogenic and solventogenic stage. We focused on these iso-spots with similar molecular mass and different pI values. Totally, eight string spots were identified, which displayed significant changes of pI values as well as spot volumes in response to solventogenic development. The data acquired from mass spectrometry demonstrated that all of the iso-spots contained the phosphrylated peptides. Bioinformatic analysis revealed that these proteins partake in the pathways of solvent synthesis.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1357-1362 |
| Number of pages | 6 |
| Journal | Shengwu Gongcheng Xuebao/Chinese Journal of Biotechnology |
| Volume | 26 |
| Issue number | 10 |
| State | Published - Oct 2010 |
| Externally published | Yes |
Keywords
- 2-dementional electrophoresis (2-DE)
- Clostridium acetobutylicum
- Protein phosphorylation
ASJC Scopus subject areas
- Biotechnology
- Applied Microbiology and Biotechnology