Saltar al contenido
Merck

U0251

Sigma-Aldrich

Urease from Canavalia ensiformis (Jack bean)

Type C-3, powder, ≥600,000 units/g solid

Sinónimos:

Jack bean urease, Urea amidohydrolase

Iniciar sesiónpara Ver la Fijación de precios por contrato y de la organización


About This Item

Número de CAS:
Comisión internacional de enzimas:
EC Number:
MDL number:
UNSPSC Code:
12352204
eCl@ss:
32160410
NACRES:
NA.54

En este momento no podemos mostrarle ni los precios ni la disponibilidad

biological source

Canavalia ensiformis

Quality Level

type

Type C-3

form

powder

specific activity

≥600,000 units/g solid

mol wt

~544620 Da

purified by

crystallization

storage temp.

−20°C

¿Está buscando productos similares? Visita Guía de comparación de productos

General description

Subunit molecular weight: ~90,770
Composed of six subunits with total molecular weight: ~544,620
Urease is a nickel-dependent metalloenzyme , found in various plants, bacteria, fungi, and algae. It contains two distinct subunits-UreA(26.5 kDa) and UreB (60.3–61.6 kDa).

Biochem/physiol Actions

Urease aids in the bioavailability of nitrogen in plants. It is implicated in defense mechanism and exhibits insecticidal activity. In addition, urease exhibits antifungal activity by retarding growth and affecting membrane integrity of filamentous fungi and yeasts.
Urease was shown to induce vacuolation in Hela cells, an effect dependent on the ability of urease to convert urea to ammonia. [1]

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)

pictograms

Health hazardExclamation mark

signalword

Danger

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1


Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

¿Necesita un COA de muestra?

Esto es un Certificado de análisis (COA) de muestra y es posible que no represente un lote de fabricación reciente para este producto específico.

¿Ya tiene este producto?

Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.

Visite la Librería de documentos

Barbara Krajewska et al.
Plant physiology and biochemistry : PPB, 43(7), 651-658 (2005-07-19)
A pH-variation study of jack bean (Canavalia ensiformis) urease steady-state kinetic parameters and of the inhibition constant of boric acid, a urease competitive inhibitor, was performed using both noninhibitory organic (MES, HEPES and CHES) and inhibitory inorganic (phosphate) buffers, in
J Ryan Feathers et al.
Journal of structural biology: X, 5, 100047-100047 (2021-04-06)
The resolution of cryo-EM reconstructions is fundamentally limited by the Nyquist frequency, which is half the sampling frequency of the detector and depends upon the magnification used. In principle, super-resolution imaging should enable reconstructions to surpass the physical Nyquist limit
T L Cover et al.
Infection and immunity, 59(4), 1264-1270 (1991-04-01)
Concentrated broth culture supernatants from 50 to 60% of Helicobacter pylori strains induce eukaryotic cell vacuolation in vitro. A quantitative assay for cell vacuolation was developed on the basis of the rapid uptake of visibly vacuolated HeLa cells was significantly
J Jessy et al.
The Biochemical journal, 277 ( Pt 3), 693-696 (1991-08-01)
Recent studies showed that hyperammonaemia caused many of the metabolic changes in portacaval-shunted rats, a model of hepatic encephalopathy. These changes included a depression in the cerebral metabolic rate of glucose (CMRGlc), an indication of decreased brain function. 2. The
Angela R Piovesan et al.
Archives of biochemistry and biophysics, 547, 6-17 (2014-03-04)
Ureases catalyze the hydrolysis of urea into NH3 and CO2. They are synthesized by plants, fungi and bacteria but not by animals. Ureases display biological activities unrelated to their enzymatic activity, i.e., platelet and neutrophil activation, fungus inhibition and insecticidal

Artículos

Probiotics exhibit an inhibitory effect on pathogens, help prevent chronic intestinal inflammatory diseases or atopic syndromes, and support the immune system.

Probiotics exhibit an inhibitory effect on pathogens, help prevent chronic intestinal inflammatory diseases or atopic syndromes, and support the immune system.

Probiotics exhibit an inhibitory effect on pathogens, help prevent chronic intestinal inflammatory diseases or atopic syndromes, and support the immune system.

Probiotics exhibit an inhibitory effect on pathogens, help prevent chronic intestinal inflammatory diseases or atopic syndromes, and support the immune system.

Nuestro equipo de científicos tiene experiencia en todas las áreas de investigación: Ciencias de la vida, Ciencia de los materiales, Síntesis química, Cromatografía, Analítica y muchas otras.

Póngase en contacto con el Servicio técnico