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Proteome reference map and comparative proteomic analysis between a wild type Clostridium acetobutylicum DSM 1731 and its mutant with enhanced butanol tolerance and butanol yield.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Mao, Shaoming Luo, Yuan-ming Zhang, Tianrui Li, Jinshan Bao, Guanhui Zhu, Yan Chen, Zugen Zhang, Yanping Li, Yin Peng Ma, Yanhe |
| Copyright Year | 2010 |
| Abstract | The solventogenic bacterium Clostridium acetobutylicum is an important species of the Clostridium community. To develop a fundamental tool that is useful for biological studies of C. acetobutylicum, we established a high resolution proteome reference map for this species. We identified 1206 spots representing 564 different proteins by mass spectrometry, covering approximately 50% of major metabolic pathways. To better understand the relationship between butanol tolerance and butanol yield, we performed a comparative proteomic analysis between the wild type strain DSM 1731 and the mutant Rh8, which has higher butanol tolerance and higher butanol yield. Comparative proteomic analysis of two strains at acidogenic and solventogenic phases revealed 102 differentially expressed proteins that are mainly involved in protein folding, solvent formation, amino acid metabolism, protein synthesis, nucleotide metabolism, transport, and others. Hierarchical clustering analysis revealed that over 70% of the 102 differentially expressed proteins in mutant Rh8 were either upregulated (e.g., chaperones and solvent formation related) or downregulated (e.g., amino acid metabolism and protein synthesis related) in both acidogenic and solventogenic phase, which, respectively, are only upregulated or downregulated in solventogenic phase in the wild type strain. This suggests that Rh8 cells have evolved a mechanism to prepare themselves for butanol challenge before butanol is produced, leading to an increased butanol yield. This is the first report on the comparative proteome analysis of a mutant strain and a base strain of C. acetobutylicum. The fundamental proteomic data and analyses will be useful for further elucidating the biological mechanism of butanol tolerance and/or enhanced butanol production. |
| Starting Page | 747 |
| Ending Page | 756 |
| Page Count | 10 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.im.ac.cn/UserFiles/File/2010/201009/pr9012078.pdf |
| PubMed reference number | 20426490v1 |
| Alternate Webpage(s) | https://doi.org/10.1021/pr9012078 |
| DOI | 10.1021/pr9012078 |
| Journal | Journal of proteome research |
| Volume Number | 9 |
| Issue Number | 6 |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | 1-Butanol Abbreviations Amino Acids Clarify Clostridium acetobutylicum Cross Protection Electrophoresis, Gel, Two-Dimensional Exanthema Gel Electrophoresis (lab technique) Gene Expression Nucleotide Metabolism Nucleotides Phenotype Phosphoribosyl Pyrophosphate Protein Biosynthesis Proteome Proteomics Spectrometry Thioctic Acid Wild Type amino acid metabolism mutant negative regulation of skeletal muscle acetylcholine-gated channel clustering protein folding |
| Content Type | Text |
| Resource Type | Article |
