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    My book says that pyruvate decarboxylase isn't present in animals, but it's used in the link reaction, so how can it not be present?

    This is quote from the book where it's from 'this reaction is catalysed by the enzyme pyruvate decarboxylase (not present in animals), which has a coenzyme (thiamine diphosphate) bound to it'.
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    pyruvate decarboxylase is used to make ethanol

    Animals use a different enzyme pyruvate dehydrogenase when they do the link reaction
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    (Original post by seamuskatt)
    pyruvate decarboxylase is used to make ethanol

    Animals use a different enzyme pyruvate dehydrogenase when they do the link reaction
    But in my book under the link reaction it says 'pyruvate decarboxylase removes a carboxyl group'.:confused:
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    yes, if you remove a carboxyl from 3C pyruvate it 'becomes 2C ethanol'

    animals just don't do this particular reaction

    can you give book details?
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    (Original post by seamuskatt)
    yes, if you remove a carboxyl from 3C pyruvate it 'becomes 2C ethanol'

    animals just don't do this particular reaction

    can you give book details?
    But then why does the book mention that pyruvate decarboxylate is used in the link reaction?
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    sigh
    *books* eh?
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    (Original post by seamuskatt)
    sigh
    *books* eh?
    maybe it's just a slightly different pyruvate decarboxylase enzyme, and maybe pyruvate decarboxylase is just a term to describe a group of enzymes that all remove a a carboxyl group from a pyruvate molecule. But the enzyme in animals does it after the pyruvate has been dehydrogenated. :confused:

    dunno, guess I'll just have to accept it
 
 
 
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