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Determination of substrate specificity of fucosyltransferase from rat brain using synthetic acceptors

, : Determination of substrate specificity of fucosyltransferase from rat brain using synthetic acceptors. Bioorganicheskaia Khimiia 26(6): 448-451

The substrate specificity of fucosyltransferase (FT) from rat forebrain and cerebellum was studied using synthetic acceptors. Of 16 acceptors tested, only those containing the Gal beta 1-4GlcNAc beta 1-R fragment were subjected to enzymic fucosylation. The isomer with a 1-3 bond as well as lactose and oligosaccharides with an additional Neu5Ac residue attached to Gal or a Fuc residue attached to GlcNAc were not fucosylated whereas Fuc alpha 1-2Gal beta 1-4GlcNAc displayed the same substrate properties as Gal beta 1-4GlcNAc. FT from cerebellum and forebrain was shown to have the specificity similar to that of mammalian FT IV. The activity of the cerebellum FT with all types of substrates was higher than that of FT isolated from forebrain, the specificity profiles being similar.


PMID: 10923193

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