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L3379 Sigma

L-Lactic Dehydrogenase isoenzymes LDH-1 (H4) and LDH-2 (H3M) from human erythrocytes

Type XII, ammonium sulfate suspension, 300-500 units/mg protein

Synonym: (S)-Lactate: NAD+ oxidoreductase, L-LDH, Human lactate dehydrogenase isoenzyme 1, LAD, LD

Properties

type   Type XII
form   ammonium sulfate suspension
foreign activity   pyruvate kinase, essentially free
storage temp.   2-8°C
Gene Information   human ... LDHA(3939), LDHB(3945)

Description

Analysis Note

Protein determined by biuret.

Biochem/physiol Actions

Also catalyzes the oxidation of other L-2-hydroxymonocarboxylic acids.

Unit Definition

One unit will reduce 1.0 μmole of pyruvate to L-lactate per min at pH 7.5 at 37 °C.

Physical form

Suspension in 2.1 M (NH4)2SO4 solution, pH 6.0

Price and Availability

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