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Figure 1.
Figure 1. Effects of the two mutations (Lys103Asn and
Tyr181Cys) on the structure of unliganded HIV-1 RT. (a) A stereo
view of the NNIBP region of the double mutant RT/ATP structure.
The composite simulated annealing omit map (2|F[o]|–|F[c]|)
electron density (cyan) contoured at 1.2σ defines the
coordination of a Na ion at the NNIBP region; OW1 and OW2 are
two water molecules. (b) The NNIBP region of the double mutant
(Lys103Asn/Tyr181Cys) HIV-1 RT. The mutated amino acids have
altered interactions with the surrounding amino acids. (c) The
NNIBP region of the wild type unliganded HIV-1 RT structure.^13
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