Blue guaran (a chromophore-labeled galactomannan) as a reagent for lectins |
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Authors: | B.S. Rathaur G.S. Khatri K.C. Gupta C.K. Narang N.K. Mathur |
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Affiliation: | Department of Chemistry, University of Jodhpur, Jodhpur-342001, India |
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Abstract: | A new reagent (blue guaran) for quantitative estimation of lectins, has been derived from a galactomannan (guaran). When the lectin solution is added to an aqueous solution of blue guaran, dye-bound guaran is precipitated from the solution. The difference in absorbance of the blue guaran solution before and after the addition of lectin solution is proportional to the amount of lectin present in the sample. The method of preparation of blue guaran, its spectral characteristics and effect of pH on precipitation have also been described. It gives a simple colorimetric method for the estimation of galactose-specific lectins. |
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