| catalase | <enzyme> Tetrameric haem enzyme (245 kD) that breaks down hydrogen peroxide. (18 Nov 1997) |
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| polyhemoglobin-superoxide dismutase-catalase | <chemical> Intermolecularly cross-linked haemoglobin, superoxide dismutase and catalase; prevents methemoglobin formation and iron release Pharmacological action: free radical scavengers Synonym: polyhb-sod-catalase (26 Jun 1999) |