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Merck
모든 사진(1)

문서

L5135

Sigma-Aldrich

L-Leucine Dehydrogenase from Bacillus cereus

lyophilized powder, ≥60 units/mg protein

동의어(들):

L-Leucine:NAD+ oxidoreductase (deaminating)

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About This Item

CAS Number:
효소 위원회 번호:
MDL number:
UNSPSC 코드:
12352204
NACRES:
NA.54

형태

lyophilized powder

Quality Level

특이 활성도

≥60 units/mg protein

분자량

245 kDa

저장 온도

−20°C

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일반 설명

L-Leucine Dehydrogenase is a member of the amino acid dehydrogenase family.

애플리케이션

L-Leucine Dehydrogenase from Bacillus cereus has been used to determine the branched-chain amino acids (BCAA) spectrophotometrically in serum samples.

생화학적/생리학적 작용

Leucine Dehydrogenase is a nicotinamide adenine dinucleotide hydrogen (NADH)-dependent oxidoreductase. It is involved in catalyzing the reductive amination of aliphatic 2-oxo-acids to their respective L-amino acids.

단위 정의

One unit will convert 1.0 μmole of L‑leucine to α-ketoisocaproate per min at pH 10.5 at 37 °C.

기타 정보

contains lysine

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

Eyeshields, Gloves, type N95 (US)


시험 성적서(COA)

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문서 라이브러리 방문

Junping Zhou et al.
Biotechnology journal, 14(3), e1800253-e1800253 (2018-07-28)
Unnatural amino acids (UAAs) play a key role in modern medicinal chemistry such as small molecules and peptide-based drugs with fast-growing markets. Low efficiency for natural enzymes including leucine dehydrogenase (LeuDH, EC1.4.1.9) are one major challenge for UAA production. Here
Hongmei Li et al.
Applied biochemistry and biotechnology, 158(2), 343-351 (2008-07-16)
Although an X-ray model sequence of a leucine dehydrogenase from Bacillus sphaericus ATCC4525 was reported, the amino acid sequence of this enzyme has not been confirmed. In the current study, this leucine dehydrogenase gene was cloned, sequenced, and over-expressed in
M B Ansorge et al.
Biotechnology and bioengineering, 68(5), 557-562 (2000-05-08)
A method for the production of recombinant L-leucine dehydrogenase from Bacillus cereus in pilot scale is described employing the temperature induced runaway replication vector pIET98 and the Escherichia coli host strain BL21. Fed-batch cultivation using a semi-synthetic high-cell densitiy medium
Tatyana A Muranova et al.
Acta crystallographica. Section D, Biological crystallography, 58(Pt 6 Pt 2), 1059-1062 (2002-05-31)
Leucine dehydrogenase is an octameric enzyme which belongs to the superfamily of amino-acid dehydrogenases and catalyses the reversible oxidative deamination of leucine to 2-ketoisocaproate, with the corresponding reduction of the cofactor NAD(+). Catalysis by this enzyme is thought to involve
Peng-Hu Zhang et al.
Sheng wu gong cheng xue bao = Chinese journal of biotechnology, 23(2), 268-272 (2007-04-28)
The purification and the characteristics of an enzyme from Morganella morganii J-8, which could produce d-pseudoephedrine from 1-phenyl-2-methylamine-acetone, were performed in this study. In this research, first, cells were disrupted by ultrasonic treatment at 4 degrees C. The carbonyl enantioselective

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