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Merck
모든 사진(4)

주요 문서

U1500

Sigma-Aldrich

Urease from Canavalia ensiformis (Jack bean)

Type III, powder, 15,000-50,000 units/g solid

동의어(들):

Jack bean urease, Urea amidohydrolase

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About This Item

CAS Number:
효소 위원회 번호:
EC Number:
MDL number:
UNSPSC 코드:
12352204
eCl@ss:
32160410
NACRES:
NA.54

생물학적 소스

Canavalia ensiformis

Quality Level

유형

Type III

형태

powder

특이 활성도

15,000-50,000 units/g solid

분자량

~544620 Da

응용 분야

diagnostic assay manufacturing

저장 온도

2-8°C

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일반 설명

Subunit molecular weight: ~90,770
Composed of six subunits with total molecular weight: ~544,620
Urease is a cytosolic enzyme that catalyzes the hydrolysis of urea to ammonia and carbon dioxide, with initial conversion to carbamate, and the carbamate breaks down further, on hydrolysis, into ammonia and to carbonic acid / carbonate. Urease is a metalloenzyme that contains nickel as a co-factor. Urease occurs naturally in plants, fungi, and certain bacteria. James B. Sumner first isolated urease from jack bean in 1926.

생화학적/생리학적 작용

Urease from Canavalia ensiformis functions as an insecticide by the release of a toxic small peptide cleaved by proteases found in the gut of insects.

단위 정의

One micromolar unit will liberate 1.0 μmole of NH3 from urea per min at pH 7.0 at 25 °C. It is equivalent to 1.0 I.U. or 0.054 Sumner unit (1.0 mg ammonia nitrogen in 5 minutes at pH 7.0 at 20 °C)

픽토그램

Health hazardExclamation mark

신호어

Danger

유해 및 위험 성명서

Hazard Classifications

Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

표적 기관

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 1


시험 성적서(COA)

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