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Figure 7.
Figure 7 Distance difference map (a) showing the movement of C^
 atoms
between the structures at 100 and 293 K. The distance difference
was calculated as the difference between the distances of C^
atoms
as  r
=  C}_{\alpha}}]
(100 K) - C}_{\alpha}}]
(293 K). Contours are drawn in the region from -0.4 to -1.8
Å with an interval of 0.2 Å. Loop regions
corresponding to the `fingertips' are denoted by T for the
`thumb' and A, B, C and D for the four `fingers'. Schematic
drawing of the energy landscape (b) shows the change of the
population of the atomic position of the `fingertip' regions
induced by cooling from 293 to 100 K. An average position is
denoted by x.
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