Biochemical studies on lipopolysaccharides of Salmonella R mutants. 4. Phosphate groups linked to heptose units and their absence in some R lipopolysaccharides.
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Carbohydrates↗
Biomedical subjects
O Westphal
Publications and source records attributed to O Westphal.
Identification of D-mannosamine and quinovosamine in Salmonella and related bacteria.
Lipopolysaccharides of several strains of Salmonella, Arizona, and Proteus vulgaris, have been found to contain two unusual amino sugars not previously reported. These amino sugars were identified as d-mannosamine and quinovosamine (2-amino-2,6-dideoxy glucose).
Chromatography, Paper↗
Relations between structures of three K polysaccharides of Escherichia coli and cross-reactivity in antipneumococcal sera.
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Animals↗
[K-antigen variants of E. coli 08:K27 (A): H-].
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Absorption↗
[Genetic studies on E. coli R-mutants].
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Drug Resistance, Microbial↗
Human growth hormone. A methodological and clinical study.
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Adolescent↗
[Production of antisera against somatic (O) antigens of Salmonella. 3. Investigations on precipitating antisera].
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Agglutination Tests↗
[On the synthesis of alpha and beta lecithins and their ether analogs].
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Ethers↗
[14C-labelled lecithin and lysolecithin].
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Carbon Isotopes↗
[Concerning the synthesis of lysolecithin and its ether analogs].
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Ethers↗
[O-methylated and O-acetylated lysolecithin].
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Lysophosphatidylcholines↗
[Palmitoyl-propandiol-(1.3)-phosphorylcholine (2-desoxylysolecithin) and omega.omega'-alkanediol-analogs].
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Alkanes↗
Synthesis and use of O-stearoyl polysaccharides in passive hemagglutination and hemolysis.
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Animals↗
[A new group of Salmonella R mutants. Serologic and biochemical analysis of the heptoses from the lipopolysaccharides from Salmonella minnesota and Salmonella ruiru mutants].
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Carbon Isotopes↗
[Comparative studies on the biosynthesis of nucleotide sugars in S and R forms of Salmonella minnesota and Salmonella ruiru].
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Chromatography, Thin Layer↗
[Polysaccharides of vegetative and aggregationally competent amoebae of the strain Dictyostelium discoideum. 1. In vivo degradation of bacterial lipopolysaccharides].
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Amoeba↗
Growth hormone levels during the first week of age in normal infants and infants of diabetic mothers.
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Female↗
Occurrence of 3-amino-3,6-dideoxyhexoses in Salmonella and related bacteria.
Several species of Salmonella, Citrobacter, and Arizona were examined for the presence of 3-amino sugars, which were isolated from lipopolysaccharide hydrolysates by cation exchange chromatography and identified by paper and cation exchange chromatography in several systems and by specific colorimetric procedures. 3-Amino-3,6-dideoxyglucose was identified in C. freundii 8090, C. freundii 869, S. halle, S. telaviv, S. dakar, S. wandsworth, and S. champaign; 3-amino-3,6-dideoxygalactose was found in S. tranoroa and Arizona 24. Evidence suggests that these 3-amino sugars occur in lipopolysaccharides as the N-acetyl derivatives. The composition of the lipopolysaccharides containing the 3-amino sugars was determined, and the lipopolysaccharides were compared serologically in order to correlate chemotypes with serotypes. The lipopolysaccharides containing 3-amino-3,6-dideoxyglucose reacted with serogroups 28 or 39; those containing 3-amino-3,6-dideoxygalactose were found to react with group 55 antisera. The preparation of a lipopolysaccharide from the phenol phase of the 44% aqueous phenol extraction procedure is also reported.
Agglutination Tests↗