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59747

Sigma-Aldrich

Lactic Dehydrogenase, recombinant from E. coli

≥90 U/mg

Synonym(s):

(S)-Lactate: NAD+ oxidoreductase, L-Lactate Dehydrogenase, Lactate

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About This Item

CAS Number:
Enzyme Commission number:
EC Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54

recombinant

expressed in E. coli

form

powder

specific activity

≥90 U/mg

storage temp.

−20°C

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General description

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

Application

Lactic Dehydrogenase, recombinant from E. coli has been used:
  • in lactate dehydrogenase (LDH) and malate dehydrogenase 1 (MDH1)assays and cross-linking assays
  • to prepare assay buffer to measure pyruvate kinase (PYK) by coupled assay
  • in in vitro DltC D-alanylation assay

Biochem/physiol Actions

Conversion of L-lactate into L-pyruvate is crucial in hypoxic and anaerobic conditions, especially when synthesis of adenosine triphosphate (ATP) by oxidative phosphorylation is interrupted.
L-lactic dehydrogenase catalyzes the conversion of L-lactate into L-pyruvate while reducing NAD+ to NADH and H+.

Unit Definition

One unit corresponds to the amount of enzyme which reduces 1 μmol pyruvate per minute at pH 7.4 and 25°C (NADH as cofactor)

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Resp. Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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A partial reconstitution implicates DltD in catalyzing lipoteichoic acid D-alanylation
Wood BM, et al.
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Ketogenic diet is a potential means of augmenting cancer therapy. Here, we explore ketone body metabolism and its interplay with chemotherapy in pancreatic cancer. Metabolism and therapeutic responses of murine pancreatic cancer were studied using KPC primary tumors and tumor

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