Co-translational Incorporation ofTrans-4-Hydroxyproline into Recombinant Proteins in Bacteria

Abstract excerpt

Trans-4-hydroxyproline (Hyp) in eukaryotic proteins arises from post-translational modification of proline residues. Because the modification enzyme is not present in prokaryotes, no natural means exists to incorporate Hyp into proteins synthesized in Escherichia coli. We show here that under appropriate culture conditions Hyp is incorporated co-translationally directly at proline codons in genes expressed in E....

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