추천 제품
생물학적 소스
Porcine kidney
형태
solid
특이 활성도
≥0.05 unit/mg solid
분자량
170 kDa
solubility
100 mM sodium phosphate buffer, pH 7.2: soluble 10 mg/mL
외래 활성
monoamine oxidase (benzylamine substrate) ≤1%
저장 온도
−20°C
일반 설명
Diamine oxidase from porcine kidney is a homodimer consisting of two equal subunits with a molecular weight of 87 kDa each. Each subunit contains one molecule of pyridoxal phosphate and one atom of copper. The molecular mass of the enzyme is found to be 170 kDa. The enzyme is a glycoprotein containing 5% hexose, 3.3% glucosamine, 2.6% N-acetylglucosamine, and 0.25% N-acetylneuraminic acid. The enzyme exhibits a high affinity for concanavalin A. Optimum pH with cadverine and histamine as substrates is found to be 6.3-7.4.
애플리케이션
Diamine Oxidase from porcine kidney has been used in the construction of histamine biosensor.
Diamine oxidase from porcine kidney has been used in a study to investigate a luminescence-based test for determining ornithine decarboxylase activity. Diamine oxidase from porcine kidney has also been used in a study to investigate N-linked oligosaccharide structures in diamine oxidase.
생화학적/생리학적 작용
Diamine Oxidase catalyzes the oxidation of monoamines, diamines, and histamine to aldehydes, ammonia, and hydrogen peroxide. The enzyme is classified as a copper amine oxidase and it is a key enzyme in nitrogen metabolism. Diamine oxidase is inhibited by diethyldithiocarbamate, phenylhydrazine, semicarbazide, cyanide, isonicotinic acid hydrazide.
단위 정의
One unit will oxidize 1.0 μmole of putrescine per hr at pH 7.2 at 37 °C.
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)
제품의 로트/배치 번호를 입력하여 시험 성적서(COA)을 검색하십시오. 로트 및 배치 번호는 제품 라벨에 있는 ‘로트’ 또는 ‘배치’라는 용어 뒤에서 찾을 수 있습니다.
이미 열람한 고객
Marta Moniente et al.
Food research international (Ottawa, Ont.), 160, 111735-111735 (2022-09-10)
Lentilactobacillus parabuchneri is the main bacteria responsible for the accumulation of histamine in cheese. The goal of this study was to assess the efficiency of potential histamine-degrading microbial strains or, alternatively, the action of the diamine oxidase (DAO) enzyme in
M A Shah et al.
The Biochemical journal, 253(1), 103-107 (1988-07-01)
Pig kidney diamine oxidase (DAO) was found to contain 5% (w/w) natural hexose, 3.25% glucosamine, 2.61% N-acetylglucosamine and 0.25% N-acetylneuraminic acid. The enzyme exhibited strong affinity towards concanavalin A (Con A) with a stoichiometry of 1:4.6. The kinetics of interaction
Diamine oxidase and catalase are expressed in the same cells but are present in different subcellular compartments in porcine kidney.
H G Schwelberger et al.
Inflammation research : official journal of the European Histamine Research Society ... [et al.], 48 Suppl 1, S81-S82 (1999-06-01)
A Rinaldi et al.
Preparative biochemistry, 12(1), 11-28 (1982-01-01)
Several methods for the isolation of apparently homogeneous pig kidney diamine oxidase have been reported in recent years (1-7), but these procedures allow to obtain only little amounts of material making very difficult the study of the molecular properties of
HISTAMINE BIOSENSOR: A REVIEW
NorazlinaOthman F, et al.
The Malaysian Journal of Analytical Sciences (2006)
프로토콜
To standardize a procedure for the enzymatic assay of Diamine Oxidase.
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