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  • Title: Failure of glucose-binding lectins Con A and Lentil Lectin to identify glycation of haemoglobin.
    Author: Frantzen F, Sundrehagen E.
    Journal: Carbohydr Res; 1996 Mar 22; 283():187-94. PubMed ID: 8901270.
    Abstract:
    We have studied the interaction of Concanavalin A and Lentil Lectin with glycohaemoglobin by a nephelometric lectin-glycogen/dextran precipitation system and monitored the inhibitory effect of glycohaemoglobin on the precipitation. Although inhibitory effects were clearly demonstrated using simple sugars and transferrin, no effect was observed by glycohaemoglobin in relevant concentrations. This is compared to affinity chromatography, binding studies using gel filtration and electrophoresis, and affinity studies using Concanavalin A immobilised on magnetisable polymer particles. Lack of interaction between glycohaemoglobin and lectins is discussed in view of steric constraints and reduced availability of the glycated residues and the stereochemical form of the glycated 1-amino-1-deoxy-fructosyl residues in glycohaemoglobin.
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