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Tuengler P, Stein TN, Long GL: Studies on the active center of D- and L-lactate dehydrogenases using oxamate-diaminohexyl-Sepharose affinity chromatography. Proc Natl Acad Sci U S A. 1980 Oct;77(10):5832-6. Vertebrate and invertebrate L-lactate dehydrogenases (L-lactate:NAD+ oxidoreductase, EC 1.1.1.27) are effectively bound to oxamate-diaminohexyl-Sepharose, whereas several D-lactate dehydrogenases (D-lactate:NAD+ oxidoreductase, EC 1.1.1.28) do not bind to the same Sepharose. One explanation for our findings is that the enzymes' substrate is oriented in a reversed manner in the active center of the D- and L-lactate dehydrogenases. |
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