Mutational studies on Leishmania donovani dihydrolipoamide dehydrogenase (LdBPK291950.1) indicates that the enzyme may not be classical class-I pyridine nucleotide-disulfide oxidoreductase.

Abstract excerpt

We report biochemical studies on two Cys residues mutation (Cys15Thr, Cys38Gly) nearest to the active site and three other amino acid substitution mutations expected to be the part of active site of LdDLDH_Variant1. Our biochemical studies show that the replacement of Cys15 increases the Km for dihydrolipoamide (DLD) substrate by five folds and NAD+ by three fold indicating that this mutation affects the binding...

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