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Figure 4.
Fig. 4. Conformational differences around the principal
Ca^2+ site. The color scheme is the same as in Fig. 1a. Ca^2+ 1
and 2 are the auxiliary and principal sites, respectively. a,
native QPDWG-HDRPY, copy A. b, native QPDWG-HDRPY, copy B. c,
copy B of apo-MBP-C (23). d, superposition of QPDWG-HDRPY copy A
(blue), QPDWG-HDRPY copy B (red), and apo-MBP-C copy B (green).
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