C3155

Catalase from bovine liver

aqueous solution, ≥30,000 units/mg protein

• Sinónimos: H₂O₂:H₂O₂ oxidoreductase
• Número de CAS: 9001-05-2
• Comisión internacional de enzimas: 1.11.1.6 (BRENDA, IUBMB)
• Número MDL: MFCD00081483
• Código UNSPSC: 12352200
• NACRES: NA.32

Propiedades

• origen biológico: bovine liver
• Nivel de calidad: 200
• descripción: optimum pH ~ 7.0
• esterilidad: aseptically filled
• formulario: aqueous solution
• actividad específica: ≥30,000 units/mg protein
• mol peso: tetramer ~250 kDa
• contiene: ≤0.10 mg/mL Thymol
• composición: ammonium sulphate, 30-50% ; catalase, 10-20%
• condiciones de almacenamiento: (Tightly closed. Keep locked up or in an area accessible only to qualified or authorized; persons)
• técnicas: activity assay: suitable
• punto isoeléctrico: 5.4
• pI: 5.4
• Nº de acceso UniProt: P00432
• Condiciones de envío: wet ice
• temp. de almacenamiento: 2-8°C
• InChI: 1S/C9H10O3/c1-2-12-9(11)7-3-5-8(10)6-4-7/h3-6,10H,2H2,1H3
• Clave InChI: NUVBSKCKDOMJSU-UHFFFAOYSA-N
• Información sobre el gen: cow ... CAT(280743)

Descripción

Descripción general

Research Area: Cell Signaling

Catalase from bovine liver is a tetramer consisting of 4 equal subunits each with a 60 kDa molecular weight. Each of these subunits contains iron bound to a protoheme IX group. The enzyme will also strongly bind to NADP, where NADP and the heme group are within 13.7 angstroms.

Research area: Cell Signaling

Catalase from bovine is a tetrameric enzyme, consisting of four identical sub-units containing a single heme moiety per subunit. Each subunit has four domains like the α-helical domain, an eight-stranded β-barrel, N-terminal threading arm that is connected to the β-barrel via a wrapping loop.

Aplicación

Catalase from bovine liver has been used:

• as a component of the GLOX buffer during single molecule fluorescent in situ hybridization (smFISH) on primary mouse cortical neurons
• for its structural and kinetic analysis of its interaction with nitric oxide
• in the preparation of glucose oxidase-catalase system (GOX-CAT system) to generate H2O2 and study the effect of H2O2-induced oxidative stress on myelination in mouse organotypic cerebellar slice cultures

Catalase acts as a natural antioxidant to study the roles of reactive oxygen species in gene expression and apoptosis. It has also been used to protect against oxidative damage to proteins, lipids, and nucleic acids. Industrially, catalzes have been used to remove hydrogen peroxide added to milk and cheese, in textile bleaching, and to examine its positive effects on the viability of DNA-repair mutants of E. coli.

Catalase from bovine liver may be used:

• to prepare H₂O₂-O₂ based biocathode for applications in glucose biofuel cells
• to study the kinetic properties and storage stability of catalase immobilized on to florisil
• in glutathione-mediated superoxide generation in an aqueous solution

Acciones bioquímicas o fisiológicas

Catalase is an active, ubiquitous enzyme that is found in all aerobic organisms. Lower levels of catalase and oxidative stress lead to several disorders such as vitiligo, hypertension, acatalasemia, cancer, diabetes mellitus, and Alzheimer’s.

Catalase, an antioxidant enzyme found in all aerobic organisms, catalyzes the degradation of hydrogen peroxide, a byproduct of metabolic processes, into less harmful water and oxygen. It can also react with alkylhydrogen peroxides, such as methylperoxide and ethylperoxide and the second H₂O₂ molecule can be replaced by methanol, ethanol, propanol, formate and nitrate as a hydrogen donor. Catalase enzyme uses either iron (Fe) or manganese (Mn) as cofactor, and are classified as Fe-CAT or Mn-CAT.

Precaución

Solutions of catalse should not be frozen. Frozen solution will result in a 50-70% loss of activity.

Definición de unidad

One unit will decompose 1.0 μmole of H₂O₂ per min at pH 7.0 at 25 °C, while the H₂O₂ concentration falls from 10.3 to 9.2 mM, measured by the rate of decrease of A₂₄₀.

Nota de preparación

2× crystallized

Información de seguridad

• Pictogramas: GHS08
• Palabra de señalización: Danger
• Frases de peligro: H334
• Consejos de prudencia: P261 - P284 - P501
• Clasificaciones de peligro: Resp. Sens. 1
• Código de clase de almacenamiento: 12 - Non Combustible Liquids
• Clase de riesgo para el agua (WGK): WGK 1
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable
• Equipo de protección personal: Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)