L-asparagine oxygenase

UniProtKB accession:  Q9Z4Z5

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UniProtKB description:  Catalyzes the 3-hydroxylation of L-asparagine to (2S,3S)-3-hydroxyasparagine. The 3-hydroxylated asparagine produced is incorporated at position 9 during the biosynthesis of the non-ribosomally synthesized calcium-dependent antibiotic (CDA), a 11-residue acidic lipopeptide lactone. Is able to hydroxylate only free L-asparagine, since it hydroxylates neither a CDA analog with unmodified Asn at position 9 nor a peptidyl-carrier-protein (PCP)-bound asparagine. Is not active toward D-asparagine.