Urease from Canavalia ensiformis (Jack bean), Type III, powder, 15,000-50,000 units/g solid

Descriptions

Biochem/physiol Actions

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.

General description

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.

Packaging

20000, 100000, 500000, 1000000 units in poly bottle

Unit Definition

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)

Specifications

No detailed specifications are available for this product.

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Code	Description	Quality Level	Manufacturer	Storage Temp.	Form	Price	Quantity
3581501	Urease from Canavalia ensiformis (Jack bean), Type III, powder, 15,000-50,000 units/g solid	300	SIGMA-ALDRICH	2-8°C	powder	£356.57 (exc VAT) per EACH	- +
3581502	Urease from Canavalia ensiformis (Jack bean), Type III, powder, 15,000-50,000 units/g solid	300	SIGMA-ALDRICH	2-8°C	powder	Click Add to Quote for price and delivery	- +
3581503	Urease from Canavalia ensiformis (Jack bean), Type III, powder, 15,000-50,000 units/g solid	300	SIGMA-ALDRICH	2-8°C	powder	£143.46 (exc VAT) per EACH	- +
3581504	Urease from Canavalia ensiformis (Jack bean), Type III, powder, 15,000-50,000 units/g solid	300	SIGMA-ALDRICH	2-8°C	powder	Click Add to Quote for price and delivery	- +