2011 Volume 75 Issue 5 Pages 994-996
Plant specific O-glycosylation of proteins includes the attachment of arabinogalactan to hydroxyproline (Hyp) residues. These Hyp residues are generated from peptidyl proline residues by the action of prolyl 4-hydroxylase which requires the ferrous ion. We investigated the effect of the ferrous chelator, 2,2′-dipyridyl on tobacco plants, and found that such treatment reduced the arabinogalactosylation of proteins.
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