Full Text                                                                            Full-Text Online        Novel acetylated a-cyclosophorotridecaose produced by Ralstonia solanacearum Cho. E      Lee. S      Jung. S       Carbohydrate Research ;  2008  [Vol.343]  Pages:912-918 Abstract a-Cyclosophorotridecaose (a-C13) produced by Ralstonia solanacearum is isolated by trichloroacetic acid treatment and subjected to various chromatographic techniques. Here, we report for the first time that R. solanacearum produces acetylated a-C13. Structural analyses of the acetylated a-C13 were performed with 1D or 2D NMR spectroscopy, MALDI-TOF MS and HPLC. The results show that the a-C13 is substituted by mainly one acetyl residue at the C-6 position of the glucose unit. Keywords acetylated α-cyclosophorotridecaose periplasmic cyclic glucan ralstonia solanacearum structural analysis