Báo cáo khoa học: A novel type of highly negatively charged lipooligosaccharide from Pseudomonas stutzeri OX1 possessing two 4,6-O-(1-carboxy)-ethylidene residues in the outer core region
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Pseudomonas stutzeriOXI is a Gram-negative microorgan-ism able to grow in media containing aromatic hydrocar-bons. A novel lipo-oligosaccharide fromP. stutzeriOX1 was isolated and characterized. For the first time, the pres-ence of two moieties of 4,6-O-(1-carboxy)-ethylidene resi-dues (pyruvic acid) was identified in a core region; these two residues were found to possess different absolute configur-ation. The structure of the oligosaccharide backbone was determined using either alkaline or acid hydrolysis. ...
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