enzyme

Discussion of all aspects of biological molecules, biochemical processes and laboratory procedures in the field.

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kabuto
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enzyme

Post by kabuto » Thu Aug 17, 2006 12:30 pm

short question here
is all enzyme protein?

wbla3335
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Post by wbla3335 » Thu Aug 17, 2006 12:45 pm

short answer,
no

.. a bit more,
"Ribozymes" are RNA molecules that have enzymatic activity. How common these are "in the wild", I don't know. Most (all?) "coenzymes" are nonprotein cofactors that are necessary for the enzymatic activity of the proteinaceous enzymes that need them.

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MrMistery
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Post by MrMistery » Thu Aug 17, 2006 6:14 pm

coenzymes are a special type of cofactor:
they are cofactors that are small organic molecules. other cofactors are inorganic ions. Like dna polymerase needs Zn.

Ribozymes are not very common in the natural world, but they are important because it is believed that molecules similar to them were the first molecules to self-replicate in the evolution of life.
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

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