Lactate Dehydrogenase (LDH)

Product Name Lactate Dehydrogenase
Source Porcine Heart
Catalogue Number 350-90
Purity Purified
Form Lyophilized
Activity > 100 U/mg (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/mg (Coomassie)
Specific Activity > 200 U/mg protein
Contaminants AST/SGOT: < 0.1%
ALT/SGPT: < 0.06%
MDH: < 0.06%
PK: < 0.06%
Appearance White to off-white powder
Solubility Reported (1 mg/mL saline)
Recertification 4 years
Storage -20°C
Synonyms LDH, Lactic Dehydrogenase
Molecular Weight ~136,700 (Huston et al. 1972)
CAS Number 9001-60-9
E.C. Number 1.1.1.27
References The Protein Journal, December 2016, Volume 35, Issue 6, pp 467–480