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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

A spectrophotometric assay for 6-phosphogluconolactonase involving the use of immobilized enzymes to prepare the labile 6-phosphoglucono-delta-lactone substrate.

We report the development of a new spectrophotometric assay for 6-phosphogluconolactonase. The labile substrate 6-phosphoglucono-delta-lactone is prepared from glucose 6-phosphate by enzymes co-immobilized on Sepharose beads. The assay has the advantages of high sensitivity for routine determination of enzyme activity and allows determination of both Km and Vmax. from a single assay. A method for estimating the contribution of spontaneous hydrolysis to total hydrolysis is described. This assay overcomes the problems encountered with all previous assays.[1]

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