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Comparative Study
. 1987;86(3):593-9.
doi: 10.1016/0305-0491(87)90454-8.

Leptomonas samueli glycoconjugates. Comparison with Herpetomonas samuelpessoai

C B Palatnik, J O Previato, P A Gorin, L Mendonça-Previato
Comparative Study

Leptomonas samueli glycoconjugates. Comparison with Herpetomonas samuelpessoai

C B Palatnik et al. Comp Biochem Physiol B. 1987.

Abstract

Xylose and mannose are the main manosaccharide components of Herpetomonas samuelpessoai and Leptomonas samueli promastigotes. Variations in the xylose/mannose ratios are related to the age of cultures. Phenol-aqueous extraction disclosed in both species the presence of carbohydrate-containing fractions which were both soluble and insoluble in chloroform/methanol/water (10:10.3). The xylose enriched, uronic acid-containing glycoconjugates of L. samueli were mainly composed of (1----4)-linked xylose units (Methylation-mass spectrometry and 13C NMR), similar to the glucuronoxylan of H. samuelpessoai (Mendonça-Previato et al., 1979 Biochem 18 149-154). SDS-PAGE and sugar composition analysis disclosed similarities between glycoconjugates of H. samuelpessoai and L. samueli, two species dwelling in the same host, therefore an example of convergent adaptation.

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