This gene encodes a mitochondrial NAD-dependent malic enzyme, a homotetrameric protein, that catalyzes the oxidative decarboxylation of malate to pyruvate. It had previously been weakly linked to a syndrome known as Friedreich ataxia that has since been shown to be the result of mutation in a completely different gene. Certain single-nucleotide polymorphism haplotypes of this gene have been shown to increase the risk for idiopathic generalized epilepsy. Alternatively spliced transcript variants encoding different isoforms found for this gene. [provided by RefSeq, Dec 2009].
MDH
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Recombinant
> 95.0 % as determined by: (a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE. Unit Definition One unit is defined as 1 µmol of NAD + production per minute under the assay conditions (25°C, pH 7.5). Specific Activity Specific Activity > 710U/mg protein.