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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Structural features and antigenic properties of carbohydrate-containing components of Trypanosoma conorhini.

Aqueous and phenolic extracts of Trypanosoma conorhini were fractionated and high molecular weight, carbohydrate-rich fractions obtained. Their antigenic characteristics, reactivity with lectins and partial chemical structure were determined. The major component, the phenolic extract, was electrophoretically diffuse and consisted of 15% protein, 5% phosphorus, hexosamine, and 67% neutral carbohydrate, which contained mannose, galactose, and xylose in a molar ratio of 1.0:1.8:1. 8. Chemical analyses and lectin agglutination experiments showed nonreducing end-groups of beta-D-galactopyranose, beta-xylopyranose, and alpha-D-mannopyranose. Phosphate esters occurred, apparently, at O-6 of hexopyranosyl units. Hexosamine was present as nonacetylated units of 2-amino-2-deoxy-alpha-D-glucopyranosyl units that were extremely resistant to acid hydrolysis. On double immunodiffusion tests, the major component gave a precipitation line with rabbit serum against whole cells of Trypanosoma cruzi, suggesting the presence of common antigenic determinant(s) on the cell surface of each trypanosomatid.[1]

References

  1. Structural features and antigenic properties of carbohydrate-containing components of Trypanosoma conorhini. Pessolani, M.C., Mendonça-Previato, L., Andrade, A.F., Gorin, P.A., Previato, J.O. Mol. Biochem. Parasitol. (1987) [Pubmed]
 
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