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L3916

Sigma-Aldrich

L-Lactic Dehydrogenase from bovine heart

1000 units/mL

Synonym(s):

Lactate, (S)-Lactate: NAD+ oxidoreductase, L-LDH, LAD, LD

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About This Item

CAS Number:
9001-60-9
Enzyme Commission number:
1.1.1.27 (BRENDA, IUBMB)
EC Number:
232-617-8
MDL number:
MFCD00131466
UNSPSC Code:
12352204
NACRES:
NA.54

form

solution

specific activity

1000 units/mL

storage temp.

2-8°C

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General description

LDH (lactic dehydrogenase) is a glycolytic enzyme. It is found in skeletal muscle, heart, liver, kidneys, brain, lungs and red blood cells. It comprises of five isoenzyme forms. LDH possess a tetrameric structure.

Application

L-Lactic Dehydrogenase from bovine heart has been used:
  • as a reference standard to measure the LDH (lactic dehydrogenase)
  • to quench protein-bound NADH in cells
  • to measure the lactate released by the cells in suspension

For use in enzymatic determination of lactate or pyruvate.

Biochem/physiol Actions

LDH (lactic dehydrogenase) helps in the reversible conversion of lactate to pyruvate.
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 2.2 M ammonium sulfate

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H334

Hazard Classifications

Resp. Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Articles

How to Work with Enzymes Supplied as Ammonium Sulfate Suspensions

Instructions for working with enzymes supplied as ammonium sulfate suspensions

Protocols

Enzymatic Assay of L-Lactic Dehydrogenase (EC 1.1.1.27)

This procedure applies to all products from heart muscle that have a specification for L-Lactic Dehydrogenase activity.

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