Fig. 1. Conformations of the translocation loop. (A) Structure of poliovirus 3Dpol showing the location of the loop in cyan with
spheres for Cα atoms. The individual fingers are colored as in our prior publications [10] (palm in gray, thumb in blue, index
finger in green, middle finger in orange, ring finger in yellow, and pinky finger in red). (B) Detailed view of the hydrophobic
pocket into which residue 290, shown with sphere for its Cβ atom, is inserted when the loop is in the in conformation. (C)
Comparison of the backbone traces of 13 loop structures showing that they adopt either an in (tan) or an out (cyan)
conformation, except for a few whose structure is perturbed by a dimethyl arsenic adduct on Cys290 (black; see the text).
Fig. 1. Conformations of the translocation loop. (A) Structure of poliovirus 3Dpol showing the location of the loop in cyan withspheres for Cα atoms. The individual fingers are colored as in our prior publications [10] (palm in gray, thumb in blue, indexfinger in green, middle finger in orange, ring finger in yellow, and pinky finger in red). (B) Detailed view of the hydrophobicpocket into which residue 290, shown with sphere for its Cβ atom, is inserted when the loop is in the in conformation. (C)Comparison of the backbone traces of 13 loop structures showing that they adopt either an in (tan) or an out (cyan)conformation, except for a few whose structure is perturbed by a dimethyl arsenic adduct on Cys290 (black; see the text).
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