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49971 Sigma-Aldrich

D-Lactic Dehydrogenase from Lactobacillus leichmanii

suspension, yellow, ~1000 U/mL

Synonym: (R)-Lactate:NAD+ oxidoreductase, D-LDH, D-Lactate Dehydrogenase

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Properties

Related Categories 1.1.x.x Acting on hydroxyl groups, 1.x.x.x Oxidoreductases, Biochemicals and Reagents, Enzyme Class Index, Enzymes, Inhibitors, and Substrates More...
form   suspension
specific activity activity   ≥30 U/mg protein
concentration   ~1000 U/mL
impurities   L-Lactat Dehydrogenase, none detected
  3.2 M Ammonium sulfate solution (pH ~6.2)
color   yellow
storage temp.   2-8°C

Description

Application

In the food industry, the primary catalysis is coupled to conversion of NADH and H+ to NAD+ with diaphorase coupled with converting the non-fluorescent resazurin to the highly fluorescent substance resorufin to measure the content of D-lactate in food products.

Biochem/physiol Actions

D-lactic dehydrogenase catalyzes the conversion of D-lactate into D-pyruvate while reducing NAD+ to NADH and H+.

Other Notes

Same product — same quality — now Sigma-Aldrich brand

Unit Definition

1 U corresponds to the amount of enzyme which will reduce 1 μmol of pyruvate to D-lactate per minute at pH 7.0 and 25 °C

Physical form

only partially soluble in water or buffer

Price and Availability

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
2

Documents

Certificate of Analysis

Protocols & Articles

Related Content

Enzymes & Proteins

Application Index | Enzyme Index | Substrate Index | Inhibitor Index | Cofactor Index | Lectin Index
Keywords: Cell signaling, Diagnostic, Drug discovery, Molecular biology

Peer-Reviewed Papers
15

References

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L3888 D-Lactic Dehydrogenase from Lactobacillus leichmanii, lyophilized powder, 150-500 units/mg protein

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