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