Urease Protein (URE)

N° du produit ABIN622009

Détail du produit

Antigène: Urease (URE)

Type de proteíne: Recombinant

Origine: Microbial

Source: Escherichia coli (E. coli)

Attributs du produit: Recombinant Urease

Pureté: > 95.0 % as determined by (a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.

Information d'application

Restrictions: For Research Use only

Stockage

Format: Lyophilized

Buffer: Each mg of protein contains 345µg Potassium Phosphate and 25µ g EDTA Na2.It is recommended to reconstitute the lyophilized Urease in sterile 18M -cm H2O.

Stock: -20 °C

Détail du antigène

Antigène: Urease (URE)

Autre désignation: Urease (URE Produits)

Synonymes: F12B7.10 Protein, F12B7_10 Protein, urease Protein, urease Protein, URE Protein, CNH01900 Protein

Sujet: Urease (EC 3.5.1.5) is an enzyme that catalyzes the hydrolysis of urea into carbon dioxide and ammonia. The reaction occurs as follows: (NH2)2CO + H2O = CO2 + 2NH3. In 1926 James Sumner showed that urease is a protein. Urease is found in bacteria, yeast and several higher plants. Characteristics: Active site metal: nickel(II), Molecular weight: 480 kDa or 545 kDa for Jack Bean Urease (calculated mass from the amino acid sequence), Optimum pH: 7.4, Optimum Temperature: 60 degrees Celsius, Enzymatic specificity: urea and hydroxyurea, Inhibitors: heavy metals. The multi-subunit enzyme usually has a 3:3 (alpha:beta) stoichiometry with a 2-fold symmetric structure (note that the image above gives the structure of the asymmetric unit, one third of the true biological assembly). An exceptional urease is found in Helicobacter pylori, which combines four of the regular six subunit enzymes in an overall tetrahedral assembly of 24 subunits (a12b12). This supra-molecular assembly is thought to confer additional stability for the enzyme in this organism, which functions to produce ammonia in order to neutralize gastric acid. The presence of urease is used in the diagnosis of Helicobacter species.