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A, MvNei1·THF complex structure. The zincless finger, H2TH, catalytic proline and glutamic acid, and conserved arginine are highlighted in pink. The DNA is shown in gray. The putative lesion binding loop is shown in dark green. B, schematics of MvNei1·DNA interactions. Nucleotides are numbered beginning from THF0, with positive numbers toward the 5′-end. Hydrogen bonds are represented with black arrows pointing toward the acceptors. Tyr-221 stacks with THF.
