The specific concentration of glycerol is considered proprietary, but will range from 50 - 70%.
U1875
Urease from Canavalia ensiformis (Jack bean)
Type III, glycerol solution, 500-800 units/mL
Sinonimo/i:
Jack bean urease, Urea amidohydrolase
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25 ML
162,00 €
100 ML
535,00 €
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Cambia visualizzazione
25 ML
162,00 €
100 ML
535,00 €
About This Item
Numero CAS:
Numero MDL:
Codice UNSPSC:
12352204
eCl@ss:
32160410
NACRES:
NA.54
Prodotti consigliati
Origine biologica
Canavalia ensiformis
Tipo
Type III
Stato
glycerol solution
PM
~544620
Concentrazione
500-800 units/mL
Temperatura di conservazione
2-8°C
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Descrizione generale
Subunit molecular weight: ~90,770
Composed of six subunits with total molecular weight: ~544,620
Composed of six subunits with total molecular weight: ~544,620
Urease of jack bean (Canavalia ensiformis), a hexamer of a single chain of 840 amino acid residues, is found in plants, bacteria, fungi, algae, and soil. It is considered the first nickel-containing enzyme and the first enzyme to be crystallized. Ureases exist in several isoforms, some are jack bean urease (JBURE-I), canatoxin (CNTX), and JBURE-IIB. JBURE-I is more abundant than the other two isoforms. Ureases are found in mature seeds.
Applicazioni
Urease from Canavalia ensiformis (Jack bean) has been used:
- to assay creatine and creatine phosphate using the sample extracted from the left ventricle (LV) and septal tissue
- to determine the concentration of urea in a stabilized urine sample
- as one of the standards to measure the urease activity of plant extracts
Azioni biochim/fisiol
In plants, ureases are essential for the bioavailability/metabolism of nitrogen in nature and defense mechanisms. Ureases are metalloenzymes that catalyze the hydrolysis of urea to release ammonia a nitrogen source for growth and carbon dioxide. They exhibit internal peptides-mediated insecticidal action and fungicidal activity.
Urease activity has been shown to be inhibited by benzpyrene following exposure to light. This inhibition was due to the effect of benzpyrene on urease′s sulfhydryl groups. [1]
Definizione di unità
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)
Avvertenze
Danger
Indicazioni di pericolo
Consigli di prudenza
Classi di pericolo
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
Organi bersaglio
Respiratory system
Codice della classe di stoccaggio
10 - Combustible liquids
Classe di pericolosità dell'acqua (WGK)
WGK 1
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
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