Some Lactobacillus l-Lactate Dehydrogenases Exhibit Comparable Catalytic Activities for Pyruvate and Oxaloacetate
收藏PubMed Central2026-05-16 收录
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The nonallosteric and allosteric l-lactate dehydrogenases of Lactobacillus pentosus and L. casei, respectively, exhibited broad substrate specificities, giving virtually the same maximal reaction velocity and substrate K(m) values for pyruvate and oxaloacetate. Replacement of Pro101 with Asn reduced the activity of the L. pentosus enzyme toward these alternative substrates to a greater extent than the activity toward pyruvate.
