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Merck

A9378

Sigma-Aldrich

L-Amino Acid Oxidase from Crotalus adamanteus

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

Sinónimos:

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

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About This Item

Número de CAS:
Comisión internacional de enzimas:
Número CE:
Número MDL:
Código UNSPSC:
12352204
NACRES:
NA.54

tpo

Type IV

Nivel de calidad

formulario

aqueous suspension

actividad específica

≥4.0 units/mg protein

mol peso

~130 kDa

contiene

toluene as preservative

concentración

≥5.0 mg/mL

solubilidad

H2O: soluble 1.0 mg/mL, clear

temp. de almacenamiento

2-8°C

Aplicación

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. 35S dimethylsulfoniopropionate (DMSP) has been synthesized chemically from 35S L-methionine using LAAO from Sigma to form 35S 3-methiolpropionate.

Acciones bioquímicas o fisiológicas

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. It occurs in many snake venoms apart from microorganisms and animal tissue, especially in kidney and liver.

Envase

Package size based on protein content

Definición de unidad

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

Nota de preparación

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

Pictogramas

Skull and crossbones

Palabra de señalización

Danger

Frases de peligro

Clasificaciones de peligro

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

Código de clase de almacenamiento

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

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)


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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)
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
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
Chia-Ann Yang et al.
Journal of agricultural and food chemistry, 60(10), 2464-2471 (2012-02-23)
The monomeric L-amino acid oxidase (mTh-LAAO) of Trichoderma harzianum ETS 323 has been suggested to antagonize Rhizoctonia solani by an unknown mechanism. Here, the mTh-LAAO-treated R. solani exhibited hyphal lysis and apoptotic characteristics such as DNA fragmentation, reactive oxygen species
Zhiliang Yu et al.
Applied biochemistry and biotechnology, 167(1), 1-13 (2012-03-01)
L-amino acid oxidase is widely found in diverse organisms and has different properties. It is thought to contribute to antimicrobial activity, amino acid catabolism, and so forth. The purpose of this communication is to summarize the advances in non-snake venom

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