| Literature DB >> 3707579 |
F Altmann, B Kwiatkowski, S Stirm, L März, F M Unger.
Abstract
A bacteriophage growing on Escherichia coli K13, K20, and K23 strains carries a glycanase that catalyzes the hydrolytic cleavage of the beta-ketopyranosidic linkages of 3-deoxy-D-manno-2-octulosonic acid (KDO) in the respective capsular polysaccharides. The main cleavage product of the K23 polysaccharide has been identified by 1H- and 13C-n.m.r. spectroscopy as beta beta Ribfl----7 beta KDOp2----3-beta Ribfl----7KDO. Cleavage of polysaccharides containing alpha-pyranosidic, or 5-substituted beta-pyranosidic KDO is not catalyzed by the enzyme.Entities:
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Year: 1986 PMID： 3707579 DOI： 10.1016/0006-291x(86)90914-9
Source DB: PubMed Journal: Biochem Biophys Res Commun ISSN： 0006-291X Impact factor: 3.575