<prompt> Vitamin C is the co-enzyme for the following hydroxylases EXCEPTPeptidyl glycine hydroxylaseDopamine betahydroxylaseProlyl lysyl hydroxylaseAspartate betahydroxylase  <response>: -Vitamin C plays the role of a coenzyme in hydroxylation of proline and lysine while protocollagen is converted to collagen i.e. post-translational modification. The hydroxylation reaction is catalysed by lysyl hydroxylase for lysine and prolyl hydroxylase for proline.-Hydroxylation of glycine is carried out by peptidylglycine hydroxylase which requires vitamin C.-Ascorbic acid is required for the oxidation of p-hydroxy phenylpyruvate enzyme hydroxylase to homogentisic acid in tyrosine metabolism. 