Natural human Catalase protein (ab91026)



  • NatureNatural
  • SourceNative
  • Amino Acid Sequence
    • SpeciesHuman


Our Abpromise guarantee covers the use of ab91026 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Biological activityActivity: Greater than 50,000 units per mg protein. One unit is equal to the amount of enzyme that will decompose one micromole of hydrogen peroxide per minute at 25°C, pH 7.0
  • Applications

    Western blot

    Functional Studies


  • Purity> 95 % SDS-PAGE.

  • FormLiquid
  • Additional notesProtein Determination: Extinction Coefficient (E) 0.1% at 280nm, 1cm pathway = 1.39. Prepared from whole blood shown to be non reactive for HBsAg, anti-HCV, anti-HBc, and negative for anti-HIV 1 & 2 by FDA approved tests.
  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.

    Preservative: None
    Constituents: 50mM Tris HCl, pH 8.0

    This product is an active protein and may elicit a biological response in vivo, handle with caution.

General Info

  • Alternative names
    • Cas1
    • CAT
    • Catalase
    • Cs1
    • MGC138422
    • MGC138424
    see all
  • FunctionOccurs in almost all aerobically respiring organisms and serves to protect cells from the toxic effects of hydrogen peroxide. Promotes growth of cells including T-cells, B-cells, myeloid leukemia cells, melanoma cells, mastocytoma cells and normal and transformed fibroblast cells.
  • Involvement in diseaseDefects in CAT are the cause of acatalasia (ACATLAS) [MIM:115500]; also known as acatalasemia. This disease is characterized by absence of catalase activity in red cells and is often associated with ulcerating oral lesions.
  • Sequence similaritiesBelongs to the catalase family.
  • Post-translational
    The N-terminus is blocked.
  • Cellular localizationPeroxisome.
  • Information by UniProt

Natural human Catalase protein images

  • SDS-PAGE: 4-12% Bis-Tris NuPAGE gel
    Lane 1: 5 µg Catalase (reduced/heated)
    Lane 2: 10 µg Catalase (reduced/heated)
    Lane 3: 20 µg Catalase (reduced/heated)
    Lane 4: Molecular weight markers
    Lane 5: 5 µg Catalase (non-reduced/no heat)
    Lane 6: 10 µg Catalase (non-reduced/no heat)
    Lane 7: 20 µg Catalase (non-reduced/no heat)
  • All lanes : Anti-Catalase antibody - Peroxisome Marker (ab15834) at 5 µg/ml

    Lane 1 : Natural human Catalase protein (ab91026) at 0.1 µg
    Lane 2 : Natural human Catalase protein (ab91026) at 0.01 µg

    Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution
    developed using the ECL technique

    Performed under reducing conditions.

    Exposure time : 10 seconds

References for Natural human Catalase protein (ab91026)

ab91026 has not yet been referenced specifically in any publications.

Product Wall

Thank you for contacting Abcam.

Having talked to the lab, they told me that frozen Catalase has the appearancethat you described. Therefore the vial is not contaminated as I first thought andso you can continue your experiments as normal. Read More

Thank you for contacting Abcam.

I am sorry that the vial of ab91026 was contaminated upon arrival. I have set the product to ship on Monday and it should arrive to you on Tuesday morning. Your new order number is ******.

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