title: Nucleotide-activated oligosaccharides are intermediates of the cell wall polysaccharide of Methanosarcina barkeri.
abstract: The cell wall of Methanosarcina barkeri consists of a heteropolysaccharide (methanochondroitin), which resembles the eukaryotic chondroitin. From cell extracts of Methanosarcina barkeri four uridine diphosphate and one undecaprenyl pyrophosphate-activated intermediate(s) of the methanochondroitin were isolated. In contrast to the known biosynthetic pathways of polysaccharides from other prokaryotes and eukaryotes, nucleotide activated oligosaccharide precursors are involved in the case of the methanochondroitin. Usually, oligosaccharides are synthesized at the lipid stage.
authors.affiliation: Angewandte Mikrobiologie, Universität Ulm.
authors.forename: E
authors.initials: E
authors.lastname: Hartmann
authors.forename: H
authors.initials: H
authors.lastname: König
mesh_terms: D000606:Amino Sugars; D001711:Biotransformation; D002240:Carbohydrate Sequence; D002473:Cell Wall / Q000378:metabolism*; D002852:Chromatography, Ion Exchange; D002855:Chromatography, Thin Layer; D017020:Methanosarcina / Q000378:metabolism*; D008969:Molecular Sequence Data; D009711:Nucleotides / Q000378:metabolism*; D009844:Oligosaccharides / Q000378:metabolism*; D011134:Polysaccharides / Q000378:metabolism*; D011135:Polysaccharides, Bacterial / Q000378:metabolism
chemical_list: D000606:Amino Sugars; D009711:Nucleotides; D009844:Oligosaccharides; D011134:Polysaccharides; D011135:Polysaccharides, Bacterial; C073246:methanochondroitin