A phosphodiester bridge between two arabinose residues as a structural element of an extracellular glycoprotein of Volvox carteri.

Autor: Holst, Otto, Christoffel, Volker, Fründ, Rüdiger, Moll, Hermann, Sumper, Manfred
Předmět:
Zdroj: European Journal of Biochemistry; 5/1/89, Vol. 181 Issue 2, p345-350, 6p
Abstrakt: The sulphated glycoprotein SSG 185 is the monomeric precursor of a highly aggregated structural element in the extracellular matrix of the multicellular green alga Volvox carteri. A phosphodiester of arabinose was isolated from a saccharide fragment of SSG 185. The structure of this phosphodiester was investigated by methylation analysis, 13C-NMR, photometric methods and enzymatic assays and identified as D-Araf-5-phospho-5-D-Araf. The function of this phosphodiester bridge as a crosslink of different carbohydrate chains in SSG 185 is discussed. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index