Qualitative and comparative proteomic analysis of Xanthomonas campestris pv. campestris 17. 2007

Wei-Jen Chung, and Hung-Yu Shu, and Chi-Yu Lu, and Chiu-Yi Wu, and Yi-Hsiung Tseng, and Shih-Feng Tsai, and Chao-Hsiung Lin
Sequencing Core, Genome Research Center, National Yang-Ming University, Taipei, Taiwan.

The bacterium Xanthomonas campestris pathovar campestris (XCC) 17 is a local isolate that causes crucifer black rot disease in Taiwan. In this study, its proteome was separated using 2-DE and the well-resolved proteins were excised, trypsin digested, and analyzed by MS. Over 400 protein spots were analyzed and 281 proteins were identified by searching the MS or MS/MS spectra against the proteome database of the closely related XCC ATCC 33913. Functional categorization of the identified proteins matched 141 (50%) proteins to 81 metabolic pathways in the Kyoto Encyclopedia of Genes and Genomes (KEGG) database. In addition, we performed a comparative proteome analysis of the pathogenic strain 17 and an avirulent strain 11A to reveal the virulence-related proteins. We detected 22 up-regulated proteins in strain 17 including the degrading enzymes EngXCA, HtrA, and PepA, which had been shown to have a role in pathogenesis in other bacteria, and an anti-host defense protein, Ohr. Thus, further functional studies of these up-regulated proteins with respect to their roles in XCC pathogenicity are suggested.

UI MeSH Term Description Entries
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D001426 Bacterial Proteins Proteins found in any species of bacterium. Bacterial Gene Products,Bacterial Gene Proteins,Gene Products, Bacterial,Bacterial Gene Product,Bacterial Gene Protein,Bacterial Protein,Gene Product, Bacterial,Gene Protein, Bacterial,Gene Proteins, Bacterial,Protein, Bacterial,Proteins, Bacterial
D016959 Xanthomonas campestris A species of gram-negative, aerobic bacteria that is pathogenic for plants. Achromobacter lunatus,Bacillus campestris,Bacterium campestre,Phytomonas campestris,Pseudomonas campestris
D019032 Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization A mass spectrometric technique that is used for the analysis of large biomolecules. Analyte molecules are embedded in an excess matrix of small organic molecules that show a high resonant absorption at the laser wavelength used. The matrix absorbs the laser energy, thus inducing a soft disintegration of the sample-matrix mixture into free (gas phase) matrix and analyte molecules and molecular ions. In general, only molecular ions of the analyte molecules are produced, and almost no fragmentation occurs. This makes the method well suited for molecular weight determinations and mixture analysis. Laser Desorption-Ionization Mass Spectrometry, Matrix-Assisted,MALD-MS,MALDI,Mass Spectrometry, Matrix-Assisted Laser Desorption-Ionization,Mass Spectroscopy, Matrix-Assisted Laser Desorption-Ionization,Matrix-Assisted Laser Desorption-Ionization Mass Spectrometry,Spectroscopy, Mass, Matrix-Assisted Laser Desorption-Ionization,MALDI-MS,MS-MALD,SELDI-TOF-MS,Surface Enhanced Laser Desorption Ionization Mass Spectrometry,Laser Desorption Ionization Mass Spectrometry, Matrix Assisted,MALDI MS,Mass Spectrometry, Matrix Assisted Laser Desorption Ionization,Mass Spectroscopy, Matrix Assisted Laser Desorption Ionization,Matrix Assisted Laser Desorption Ionization Mass Spectrometry
D020543 Proteome The protein complement of an organism coded for by its genome. Proteomes

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