Enzymes catalase and peroxidase

[dingdangdoo]

I was wondering if anybody could tell me if either one are present in the liver and if so could they please explain their functions. I was also wondering if copper would have an effect on the enzymes function. Thanks.

[Poison]

catalase is present in liver. Its function is to break down H2O2 into H2O and O2. H2O2 is a harmful product that must be broken down.
Have a look at these for more. They might help:

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about299.html


In your second question, what kind of effect are you asking about?

[canalon]

A quick search on medline and toxnet show that defects in Copper lead to oxidation problem in the liver. But it seems related to A problem with a CuZn dependant Superoxide dismutase (SOD), not with catalase or peroxidase.
SOD protects again oxidation by inacativating Superoxide ions which are a highly reactive oxygen species, but don not act on H2O2.

HTH

Patrick