The volume is batch dependent. Here is an example.
L2500-5KU, batch 0000304021 CofA:
https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/L2500-5KU0000304021.pdf
13.99 mg protein/ml X 877 units/mg Protein = about 12,269 units/ml
For a 5ku pack size: 5000 units / 12,269 units/ml which is about 0.4ml
L2500
L -Lactic Dehydrogenase from rabbit muscle
Type II, ammonium sulfate suspension, 800-1,200 units/mg protein
Synonyme(s) :
Lactate, (S)-Lactate: NAD+ oxidoreductase,
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| À vous/Référence | Disponibilité | Prix |
|---|---|---|
5000 units | Disponible dès aujourd'huiDeSt QuentinFallavier | 49,40 € |
10000 units | Disponible dès aujourd'huiDeSt QuentinFallavier | 85,60 € |
25000 units | Disponible dès aujourd'huiDeSt QuentinFallavier | 170,00 € |
50000 units | Vérifier la disponibilité des articles du panier | 354,00 € |
100000 units | Vérifier la disponibilité des articles du panier | 569,00 € |
A propos de cet article
Numéro CAS:
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-617-8
MDL number:
Specific activity:
800-1,200 units/mg protein
Service technique
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Laissez-nous vous aidertype
Type II
Quality Segment
form
ammonium sulfate suspension
specific activity
800-1,200 units/mg protein
mol wt
140 kDa
foreign activity
pyruvate kinase, myokinase, malic dehydrogenase, glutamic-pyruvic transaminase, glutamic-oxalacetic transaminase and α-glycerophosphate dehydrogenase ≤0.01%
shipped in
wet ice
storage temp.
2-8°C
General description
Lactic Dehydrogenase (LDH) has a total molecular weight of 140 kDa and is composed of 4 subunits which are designated M subunit (muscle) and H subunit (heart). These subunits may be mixed in any of 5 combinations (M4, M3H1, M2H2, MH3, and H4). Skeletal muscle contains LDH that is predominately M4 with some small amounts of M3H and traces of H2H2. The H and M subunits are quite similar in molecular weight, but differ substantially in amino acid composition. Rabbit muscle LDH dissociates into dimeric species (MW = ~70 kDa) in acetate-chloride at pH 5.0, the dissociation is reversible. Biochemistry, 13, 3527-3531 (1974). Oxidizes glyoxylate and lactate.
Isoelectric point: 8.4-8.6
Optimal pH : 7.5 .
Isoelectric point: 8.4-8.6
Optimal pH : 7.5 .
Application
- for protein-binding measurement
- to detect the action of oxaloacetate decarboxylase
- to determine serum
L - andD -lactate
Biochem/physiol Actions
Also catalyzes the oxidation of other L -2-hydroxymonocarboxylic acids.
Lactic dehydrogenase is responsible for the conversion of pyruvate to lactate in the fermentative metabolism.
Physical form
Crystalline suspension in 3.2 M (NH4)2SO4 solution, pH 6.0
Analysis Note
Protein determined by biuret.
Other Notes
One unit will reduce 1.0 μmole of pyruvate to L
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