Physiological Functions Vitamin C (ascorbic acid) is a water-soluble antioxidant that is responsible for maintaining iron in its reduced state thus preserving activity of the hundreds of enzymes that contain iron at the catalytic site. The most well-documented of these enzymes are the iron-containing prolyl and lysyl hydroxylases that catalyze the post-translational hydroxylation of proline [...]
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Tuesday, October 20, 2009
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