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W Diezel1, S Liebe, G Kopperschläger

  • 1Physiologisch-chemisches Institut der Karl-Marx-Universität, Leipzig, DDR

FEBS Letters
|February 16, 1970
PubMed
Summary
This summary is machine-generated.

Bovine liver catalase exhibits multiple enzymatic forms detected by polyacrylamide gel electrophoresis, with varying molecular weights. Density gradient centrifugation revealed distinct catalase components, highlighting differences in molecular weight distribution between methods.

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Area of Science:

  • Biochemistry
  • Enzymology
  • Molecular Biology

Background:

  • Catalase is a crucial enzyme protecting cells from oxidative damage.
  • Understanding catalase's molecular heterogeneity is key to its function.

Purpose of the Study:

  • To investigate the molecular forms of bovine liver catalase.
  • To compare molecular weight estimations using different biochemical techniques.

Main Methods:

  • Electrophoresis in a linear polyacrylamide gradient.
  • Density gradient centrifugation.

Main Results:

  • Gel electrophoresis separated bovine liver catalase into five distinct active bands.
  • Molecular weights identified by electrophoresis ranged from 248,000 to 705,000.

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  • Density gradient centrifugation resolved catalase into two components with molecular weights of 252,000 and 316,000.

    • Conclusions:

    • Bovine liver catalase exists in multiple molecular forms.
    • Discrepancies in molecular weight distribution were observed between electrophoresis and density gradient centrifugation methods.