Purification and Properties of Nicotinamide Adenine Dinucleotide-Dependent d- and l-Lactate Dehydrogenases in a Group N Streptococcus
AUTOR(ES)
Mou, L.
RESUMO
Streptococcus lactis strain 760, a group N streptococcus, was found to possess nicotinamide adenine dinucleotide-dependent dehydrogenase activities for both the l(+) and the d(−) isomers of lactic acid. The two enzymes were isolated and purified and were found to differ with respect to pH optima, activation by fructose-1,6-diphosphate, pH and heat stability, and the temperature at which each enzyme was formed in the organism during growth. The presence of a racemase for lactic acid was not detected by the methods used.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=251295Documentos Relacionados
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