A9378
L-Amino Acid Oxidase from Crotalus adamanteus
Type IV, ≥4.0 units/mg protein, aqueous suspension
Synonyme(s) :
L-AAO, L-Amino acid:oxygen oxidoreductase (deaminating)
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About This Item
Produits recommandés
Type
Type IV
Niveau de qualité
Forme
aqueous suspension
Activité spécifique
≥4.0 units/mg protein
Poids mol.
~130 kDa
Contient
toluene as preservative
Concentration
≥5.0 mg/mL
Solubilité
H2O: soluble 1.0 mg/mL, clear
Température de stockage
2-8°C
Application
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.
Actions biochimiques/physiologiques
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.
Conditionnement
Package size based on protein content
Définition de l'unité
One Unit oxidizes one micromole of L-leucine per minute at 25 °C, pH 7.6
Notes préparatoires
Dissolves in water at 1 mg/mL concentration to form a clear solution.
Mention d'avertissement
Danger
Mentions de danger
Conseils de prudence
Classification des risques
Acute Tox. 1 Inhalation - Acute Tox. 2 Dermal - Acute Tox. 2 Oral
Code de la classe de stockage
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
Classe de danger pour l'eau (WGK)
WGK 3
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Équipement de protection individuelle
Eyeshields, Gloves, type N95 (US)
Certificats d'analyse (COA)
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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
Ko-Chun Ko et al.
Antimicrobial agents and chemotherapy, 56(4), 1725-1734 (2012-01-11)
The marine snail Aplysia californica produces escapin, an L-amino acid oxidase, in its defensive ink. Escapin uses L-lysine to produce diverse products called escapin intermediate products of L-lysine (EIP-K), including α-amino-ε-caproic acid, Δ¹-piperidine-2-carboxylic acid, and Δ²-piperidine-2-carboxylic acid. EIP-K and H₂O₂
R L Hanson et al.
Enzyme and microbial technology, 48(6-7), 445-453 (2011-11-25)
N-Cbz-4,5-dehydro-L-prolineamide or N-Boc-4,5-dehydro-L-prolineamide are alternative key intermediates for the synthesis of saxagliptin, a dipeptidyl peptidase IV (DPP4) inhibitor recently approved for treatment of type 2 diabetes mellitus. An efficient biocatalytic method was developed for conversion of L-ornithine, N-α-benzyloxycarbonyl (Cbz)-L-ornthine, and
Chi-Hua Cheng et al.
Analytical biochemistry, 420(1), 93-95 (2011-09-29)
As opposed to single-cell yeast and mammalian cell lines, apoptosis has not been greatly investigated in filamentous fungi because antibodies to the relevant fungal apoptosis-related proteins are not available commercially and because multicellular organisms cannot be studied using flow cytometry.
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