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Figure 5.
Figure 5. Least-squares C^a superpositions of 9°N-7 and
RB69 pols in the (a) palm subdomain or (b) exonuclease domain.
The 9°N-7 pol backbone is shown in yellow, and its
active-site carboxylate groups in gold. The RB69 pol backbone is
drawn in green, and its active-site residues in magenta. The
central b-sheet of the exonuclease domain is light blue
(9°N-7 pol) or dark blue (RB69 pol) to allow tracking of the
domain motion. The precise regions used in the palm and
exonuclease superpositions are shown in Figure 4. The
NH[2]-terminal domain has been omitted for clarity. Arrows in
(a) indicate the direction of fingers and exonuclease movement
when moving from (a) to (b).
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