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EC 1.1.1.375 Details
show Brenda entryEC number
1.1.1.375
Accepted name
L-2-hydroxycarboxylate dehydrogenase [NAD(P)+]
Reaction
a (2S)-2-hydroxycarboxylate + NAD(P)+ = a 2-oxocarboxylate + NAD(P)H + H+
Other name(s)
MdhII,
lactate/malate dehydrogenase
Systematic name
(2S)-2-hydroxycarboxylate:NAD(P)+ oxidoreductase
Comment
The enzyme from the archaeon Methanocaldococcus jannaschii catalyses the reversible oxidation of (2R)-3-sulfolactate and (S)-malate to 3-sulfopyruvate and oxaloacetate, respectively (note that (2R)-3-sulfolactate has the same stereochemical configuration as (2S)-2-hydroxycarboxylates) [1]. The enzyme can use both NADH and NADPH, although activity is higher with NADPH [1-3]. The oxidation of (2R)-3-sulfolactate was observed only in the presence of NADP+ [1]. The same organism also possesses an NAD+-specific enzyme with similar activity, cf. EC 1.1.1.337, L-2-hydroxycarboxylate dehydrogenase (NAD+).
History
created 2014
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1 Oxidoreductases
1.1.1.70 created 1965, deleted 1978 1.1.1.74 created 1972, deleted 1976 1.1.1.89 created 1972, deleted 1976 1.1.1.109 created 1972, deleted 1976 1.1.1.139 created 1972, deleted 1978 1.1.1.155 created 1976, deleted 2004 1.1.1.171 created 1978, deleted 1984 1.1.1.180 created 1983, deleted 1984 1.1.1.182 created 1983, deleted 1990 1.1.1.204 created 1972 as EC 1.2.1.37, transferred 1984 to EC 1.1.1.204, modified 1989, deleted 2004 1.1.1.242 created 1992, deleted 2001 1.1.1.253 created 1999, deleted 2003
1.1.2 With a cytochrome as acceptor
