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Sigma-Aldrich

L-Leucine Dehydrogenase, Bacillus cereus

Synonym(s):

L-Leucine Dehydrogenase, Bacillus cereus, L-LeuDH, L-Leucine:NAD +-oxidoreductase

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About This Item

CAS Number:
Enzyme Commission number:
MDL number:
UNSPSC Code:
12352202
NACRES:
NA.77

biological source

Bacillus sp. (Bacillus cereus)

Quality Level

form

liquid

specific activity

≥10 units/mg protein
≥50 units/mL

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
avoid repeated freeze/thaw cycles

shipped in

wet ice

storage temp.

−20°C

General description

Native L-leucine dehydrogenase from Bacillus cereus. Catalyzes the NAD+-dependent conversion of L-leucine to α-ketoisocaproate. Suitable for the production of L-tertiary leucine amino acids.
Native L-leucine dehydrogenase from Bacillus cereus. Purified enzyme that catalyzes the NAD-dependent conversion of L-leucine to α-ketoisocaproate. Suitable for the production of L-tertiary leucine amino acids. Has an optimal pH of 10.5-10.8 for L-leucine substrate and 9.4 for α-ketoisocaproate substrate. Has an optimal temperature of 65°C.
pH optimum 10.5-10.8 (L-leucine substrate) and 9.4 (α-ketoisocaproate substrate), temperature optimum 65°C.

Warning

Toxicity: Standard Handling (A)

Unit Definition

One unit is defined as the amount of enzyme that will convert 1.0 µmol L-leucine to α-ketoisocaproate in the presence of NAD+ per min at 30°C, pH 10.7.

Physical form

In 100 mM NaCl, 10 mM potassium phosphate buffer, 50% glycerol, pH 7.5.

Reconstitution

Following initial thaw, aliquot and freeze (-20°C).

Other Notes

Kärst, U., et al. 1986. FEMS Microbiol. Lett. 37, 335.
Schütte, H., et al. 1985. Appl. Microbiol.Biotechnol.22, 306.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

wgk_germany

WGK 2


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