Structure of an acidic polysaccharide from the agar-decomposing marine bacterium Pseudoalteromonas atlantica strain IAM 14165 containing 5,7-diacetamido-3,5,7,9-tetradeoxy-L-glycero-L-manno-non-2-ulosonic acid |
| |
| Authors: | Perepelov Andrei V Shashkov Alexander S Torgov Vladimir I Nazarenko Evgeny L Gorshkova Raisa P Ivanova Elena P Gorshkova Natalya M Widmalm Göran |
| |
| Institution: | Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden. |
| |
| Abstract: | The structure of an acidic polysaccharide from Pseudoalteromonas atlantica strain 14165 containing 5,7-diacetamido-3,5,7,9-tetradeoxy-L-glycero-L-manno-non-2-ulosonic acid (di-N-acetylpseudaminic acid, Pse5Ac7Ac) has been elucidated. The polysaccharide was studied by 1H and 13C NMR spectroscopy, including 2D experiments, along with sugar and methylation analyses. After a selective hydrolysis a modified polysaccharide devoid of its side chain could be isolated. It was found that the polysaccharide has pentasaccharide repeating units with following structure: structure: see text]. |
| |
| Keywords: | Pseudoalteromonas atlantica Polysaccharides Structure NMR spectroscopy Marine bacteria 5 7-Diacetamido-3 5 7 l-glycero-l-manno-non-2-ulosonic acid" target="_blank">9-tetradeoxy-l-glycero-l-manno-non-2-ulosonic acid Pseudaminic acid |
| 本文献已被 ScienceDirect PubMed 等数据库收录！ |
|
