Lactate Dehydrogenase 4 (LDH-4)

Product Name Lactate Dehydrogenase 4
Source Human Liver
Catalogue Number 355-40
Form Liquid
Purity Purified
Activity > 110 U/mL (Dimension® Clinical Chemistry System)
Unit Definition One unit will catalyze the oxidation of one micromole of L-lactate to pyruvate with simultaneous reduction of NAD+ to NADH per minute at 37°C and pH 9.4.
Protein > 0.5 mg protein/mL (Coomassie)
Specific Activity > 35 U/mg protein
Isoenzyme LDH-4: > 80% (Helena QuickGel® LD Isoenzyme Electrophoresis)
LDH-1: < 2.0%
LDH-2: < 2.0%
LDH-3: < 15%
LDH-5: < 15%
Contaminants CPK: < 1%
Formulation Suspension in 3.1 M ammonium sulfate, 50 mM tris chloride, 1 mM DTT and 1 mM EDTA, pH 8.3.
Storage 2-8°C
Recertification 2 years
Synonyms LDH-4 isoenzyme, 1H3M isoenzyme, ld4 isoenyzme
CAS Number 9001-60-9
E.C. Number 1.1.1.27