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Figure 2.
Figure 2. The prolyl-adenylate complex. (a) Unbiased
positive difference electron density for the prolyl-adenylate
analogue in the active site of ProRSTT contoured at 3.0 sigma
after refinement of the structure without inclusion of the
substrate in the model. (b) Hydrogen bond interactions (red
dotted lines) of the prolyl-adenylate in the active site of
ProRSTT. Class II synthetase conserved features, the TXE loop
(gold), motif 2 (outlined in blue) and motif 3 (outlined in red)
are shown.
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