219261

Katalase, Aspergillus niger

Catalase, Aspergillus niger, CAS 9001-05-2, is a native, long-acting, extremely stable form of catalase that is active over a wide pH range (pH 1 - 12).

• Synonym(e): Katalase, Aspergillus niger
• CAS-Nummer: 9001-05-2
• EC-Nummer: 1.11.1.6 (BRENDA, IUBMB)
• MDL-Nummer: MFCD00081483
• UNSPSC-Code: 12352202
• NACRES: NA.77

Eigenschaften

• Qualitätsniveau: 100
• Form: lyophilized powder
• Spezifische Aktivität: ≥10,000 units/mg protein; ≥4000 units/mg dry wt.
• Hersteller/Markenname: Calbiochem^®
• Lagerbedingungen: OK to freeze; desiccated (hygroscopic)
• Farbe: green
• Löslichkeit: H₂O: 1 mg/mL
• Versandbedingung: wet ice
• Lagertemp.: −20°C
• InChI: 1S/C9H10O3/c1-2-12-9(11)7-3-5-8(10)6-4-7/h3-6,10H,2H2,1H3
• InChIKey: NUVBSKCKDOMJSU-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Research area: Cell Signaling

Catalase, Aspergillus niger, is a native, long-acting, extremely stable form of catalase that is active over a wide pH range (pH 1 - 12). Composed of four protein subunits, each containing a heme group bound to its active site, it is one of the most important antioxidant enzymes present in almost all aerobic organisms.

Anwendung

Catalase may be used in:

• Industrial applications for eliminating hydrogen peroxide, which is utilized as an oxidizing, bleaching, or sterilizing agent.
• Food industry and egg processing, often in conjunction with other enzymes.
• Food preservation methods in combination with glucose oxidase, where superoxide dismutase produces H2O2, which is subsequently eliminated by catalase.
• Preservation process, along with glucose oxidase.

Biochem./physiol. Wirkung

Catalase is responsible for breaking down two hydrogen peroxide molecules into one oxygen molecule and two water molecules in a two-step reaction. It plays a crucial role in regulating the cellular level and catabolism of hydrogen peroxide which in turn shields the cells from oxidative damage. Its malfunctioning and deficiency is linked to various diseases, including vitiligo, diabetes mellitus, anemia, cardiovascular diseases, bipolar disorders, Wilson disease, certain dermatological disorders, Alzheimer′s disease, hypertension, and schizophrenia. Anomalies in catalase activity are related to acatalasemia or Takahara disease, a rare genetic disorder.

Warnhinweis

Toxizität: Standard-Handhabung (A)

Einheitendefinition

Eine Einheit ist als die Menge an Enzym definiert, die je Minute bei 30 °C und einem pH-Wert von 7,0 1,0 µmol H₂O₂ abbaut.

Rekonstituierung

Nach der Rekonstitution in Aliquote aufteilen und einfrieren (-20 °C). Stammlösungen sind bei -20 °C bis zu 3 Monate haltbar.

Sonstige Hinweise

Note: 1 KU = 1000 units

Rechtliche Hinweise

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Sicherheitshinweise

• Piktogramme: GHS08
• Signalwort: Danger
• H-Sätze: H334
• P-Sätze: P261 - P284 - P501
• Gefahreneinstufungen: Resp. Sens. 1
• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable