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Phyton (Buenos Aires)

versión On-line ISSN 1851-5657

Resumen

SACRISTAN, M et al. A first attempt to elucidate the amino acid sequence of some lichen lectins. Phyton (B. Aires) [online]. 2008, vol.77, pp. 253-262. ISSN 1851-5657.

Secreted arginases from Evernia prunastri and Xanthoria parietina thalli, exhibiting lectin activity, have been purified to homogeneity. Analyses of both amino acid and glycoside composition are reported. Purified proteins have been subjected to tryptic digestion and some amino acid sequences have been analyzed. An undecapeptide from Evernia arginase, which shows some degree of homology with the domain to which Mn2+ binds, a heptapeptide and an undecapeptide from Xanthoria arginase have been analyzed, and homologies with some arginases from other fungi and plants have been found.

Palabras llave : Evernia prunastri; Xanthoria parietina; Arginases; Lectins; Structure analysis.

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