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Genes 2011, 2(4), 788-803; doi:10.3390/genes2040788
Article

Identification of Genes Involved in the Glycosylation of Modified Viosamine of Flagellins in Pseudomonas syringae by Mass Spectrometry

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Received: 2 September 2011; in revised form: 20 October 2011 / Accepted: 21 October 2011 / Published: 28 October 2011
(This article belongs to the Special Issue Genes and Genomes of Plant Pathogenic Bacteria)
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Abstract: Previously we revealed that flagellin proteins in Pseudomonas syringae pv. tabaci 6605 (Pta 6605) were glycosylated with a trisaccharide, modified viosamine (mVio)-rhamnose-rhamnose and that glycosylation was required for virulence. We further identified some glycosylation-related genes, including vioA, vioB, vioT, fgt1, and fgt2. In this study, we newly identified vioR and vioM in a so-called viosamine island as biosynthetic genes for glycosylation of mVio in Pta 6605 by the mass spectrometry (MS) of flagellin glycan in the respective mutants. Furthermore, characterization of the mVio-related genes and MS analyses of flagellin glycans in other pathovars of P. syringae revealed that mVio-related genes were essential for mVio biosynthesis in flagellin glycans, and that P. syringae pv. syringae B728a, which does not possess a viosamine island, has a different structure of glycan in its flagellin protein.
Keywords: flagellin; glycosylation; mass spectrometry; viosamine island flagellin; glycosylation; mass spectrometry; viosamine island
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Yamamoto, M.; Ohnishi-Kameyama, M.; Nguyen, C.L.; Taguchi, F.; Chiku, K.; Ishii, T.; Ono, H.; Yoshida, M.; Ichinose, Y. Identification of Genes Involved in the Glycosylation of Modified Viosamine of Flagellins in Pseudomonas syringae by Mass Spectrometry. Genes 2011, 2, 788-803.

AMA Style

Yamamoto M, Ohnishi-Kameyama M, Nguyen CL, Taguchi F, Chiku K, Ishii T, Ono H, Yoshida M, Ichinose Y. Identification of Genes Involved in the Glycosylation of Modified Viosamine of Flagellins in Pseudomonas syringae by Mass Spectrometry. Genes. 2011; 2(4):788-803.

Chicago/Turabian Style

Yamamoto, Masanobu; Ohnishi-Kameyama, Mayumi; Nguyen, Chi L.; Taguchi, Fumiko; Chiku, Kazuhiro; Ishii, Tadashi; Ono, Hiroshi; Yoshida, Mitsuru; Ichinose, Yuki. 2011. "Identification of Genes Involved in the Glycosylation of Modified Viosamine of Flagellins in Pseudomonas syringae by Mass Spectrometry." Genes 2, no. 4: 788-803.


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