The multiplicity of enzymatic DNA reduction: a new purification procedure for a DHA reducing protein from potato tubers.

The multiplicity of DHA reducing proteins has been observed by means of a native-PAGE technique in several plant species, thus demonstrating, in accordance with recent literature, that several differently evolved proteins are likely to perform DHA reduction. Moreover, a research strategy coupling the use of native-PAGE with chromatographic separation procedure, tentatively performed in Solanum tuberosum, proved to be a useful tool for the separation and partial identification of the proteins involved in DHA reduction.