Sequence alignment between 4bf9(A) and UniProt seq P33371 (DUSC_ECOLI):

P33371 (DUSC_ECOLI): tRNA-dihydrouridine(16) synthase from Escherichia coli (strain K12)
                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310     
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-----
UniProt: ---MRVLLAPMEGVLDSLVRELLTEVNDYDLCITEFVRVVDQLLPVKVFHRICPELQNASRTPSGTLVRVQLLGQFPQWLAENAARAVELGSWGVDLNCGCPSKTVNGSGGGATLLKDPELIYQGAKAMREAVPAHLPVSVKVRLGWDSGEKKFEIADAVQQAGATELVVHGRTKEQGYRAEHIDWQAIGDIRQRLNIPVIANGEIWDWQSAQQCMAISGCDAVMIGRGALNIPNLSRVVKYNEPRMPWPEVVALLQKYTRLEKQGDTGLYHVARIKQWLSYLRKEYDEATELFQHVRVLNNSPDIARAIQAIDIEKL
PDB seq: MASMRVLLAPMEGVLDSLVRELLTEVNDYDLCITEFVRVVDQLLPVKVFHRICPELQNASRTPSGTLVRVQLLGQFPQWLAENAARAVELGSWGVDLNCGCPSKTVNGSGGGATLLKDPELIYQGAKAMREAVPAHLPVSVKVRLGWDSGEKKFEIADAVQQAGATELVVHGRTKEQGYRAEHIDWQAIGDIRQRLNIPVIANGEIWDWQSAQQCMAISGCDAVMIGRGALNIPNLSRVVKYNEPRMPWPEVVALLQKYTRLEKQGDTGLYHVARIKQWLSYLRKEYDEATELFQHVRVLNNSPDIARAIQAIDIEKL
         --+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-----
           0        10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310