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. 2017 Apr 27;12(4):e0176398. doi: 10.1371/journal.pone.0176398

Fig 3. Comparison of active site residues of 3NTDO-ODS2 and NBDO.

Fig 3

The residues responsible for regioselectivity of 3NTDO-ODS2 (A) and NBDO (B) are shown in green and orange stick model, respectively. The mononuclear iron center (large magenta sphere) is coordinated with two histidine and one aspartic residue.