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Merck

A9378

Sigma-Aldrich

L-Amino Acid Oxidase from Crotalus adamanteus

Type IV, ≥4.0 units/mg protein, aqueous suspension

别名:

L-AAO, L-Amino acid:oxygen oxidoreductase (deaminating)

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2 MG
$265.00
5 MG
$529.00
10 MG
$1,000.00

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2 MG
$265.00
5 MG
$529.00
10 MG
$1,000.00

About This Item

CAS号:
EC 号:
MDL编号:
UNSPSC代码:
12352204
NACRES:
NA.54

$265.00


请联系客服了解存货情况

类型

Type IV

表单

aqueous suspension

比活

≥4.0 units/mg protein

分子量

~130 kDa

包含

toluene as preservative

浓度

≥5.0 mg/mL

溶解性

H2O: soluble 1.0 mg/mL, clear

储存温度

2-8°C

应用

L-amino acid oxidase (LAAO) is used to convert L-amino acids to their corresponding α-keto acids. L-amino acid oxidase, from Sigma, has been used in leucine aminopeptidase (LAP) activity assays.[1] 35S dimethylsulfoniopropionate (DMSP) has been synthesized chemically from 35S L-methionine using LAAO from Sigma to form 35S 3-methiolpropionate.[2]

生化/生理作用

L-Amino acid oxidase is a flavoprotein with a molecular weight of 130 kDa. It consists of two different subunits of approximately 70,000 Da. Each molecule of holoenzyme has two FAD molecules. It is a glycoprotein containing about 2-5% carbohydrate, including sialic acid. Optimum pH is approximately 7.5.The enzyme may be reversibly inactivated by incubation in phosphate buffer, pH 7.5 at 38 °C. L-amino acid oxidase is involved in various metabolic pathways such as alanine and aspartate metabolism, methionine metabolism, valine, leucine and isoleucine degradation, tyrosine metabolism, phenylalanine metabolism, tryptophan metabolism, phenylalanine, tyrosine and tryptophan biosynthesis, and alkaloid biosynthesis.[3] It occurs in many snake venoms apart from microorganisms and animal tissue, especially in kidney and liver.

包装

Package size based on protein content

单位定义

One Unit oxidizes one micromole of L-leucine per minute at 25 °C, pH 7.6

制备说明

Dissolves in water at 1 mg/mL concentration to form a clear solution.

象形图

Skull and crossbones

警示用语:

Danger

危险声明

危险分类

Acute Tox. 1 Inhalation - Acute Tox. 2 Dermal - Acute Tox. 2 Oral

储存分类代码

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


历史批次信息供参考:

分析证书(COA)

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Stefania Digiovanni et al.
Scientific reports, 10(1), 10135-10135 (2020-06-25)
Reactive Intermediate Deaminase (Rid) protein superfamily includes eight families among which the RidA is conserved in all domains of life. RidA proteins accelerate the deamination of the reactive 2-aminoacrylate (2AA), an enamine produced by some pyridoxal phosphate (PLP)-dependent enzymes. 2AA
Identification and enumeration of bacteria assimilating dimethylsulfoniopropionate (DMSP) in the North Atlantic and Gulf of Mexico
Malmstrom RR, et al.
Limnology and Oceanography, 49(2), 597-606 (2004)
Jiro Arima et al.
The Journal of biological chemistry, 281(9), 5885-5894 (2006-01-13)
Streptomyces griseus leucine aminopeptidase (SGAP), which has two zinc atoms in its active site, is clinically important as a model for understanding the structure and mechanism of action of other metallopeptidases. SGAP is a calcium-activated and calcium-stabilized enzyme, and its
Joseph M Boggs et al.
Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases, 12(5), 1005-1009 (2012-03-15)
Phylogenetic analysis of 10 amino acid sequences from 19 Streptococcus species showed that S. oligofermentans clustered within the mitis group. However, the l-amino acid oxidase (LAAO) of S. oligofermentans showed a different clustering pattern from the other proteins analyzed implicating
Hong-Sen Chen et al.
Biochimie, 94(2), 335-344 (2011-08-02)
To investigate the structure-function relationships and geographic variations of L-amino acid oxidase (LAAO) from Daboia venoms, a single LAAO (designated as DrLAO) was purified from eastern Indian Daboia russelii venom and characterized. The purified DrLAO showed subunit molecular mass of

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