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![[Figure 1]](fs5182fig1mag.jpg)
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Figure 1
(a)–(c) The H/D exchange behavior of amide hydrogen atoms in H/D-exchanged HEWL and 1lzn (Bon et al., 1999  ). The occupancy values for deuterium atoms on the amide nitrogen are indicated by the black lines. The pairs of red horizontal lines indicate the upper and lower border values of occupancy for partially H/D-exchanged hydrogen atoms (0.7 and 0.15, respectively). (a) Occupancy values for deuterium atoms on the amide nitrogen in H/D-exchanged HEWL (black line). (b) Occupancy values (1.0 or 0.0) for 1lzn. The values are indicated by graphs not only in line form but also in bar form, for easier understanding of (c). (c) Occupancy values for H/D-exchanged HEWL in line form superimposed on those of 1lzn in bar form. The amide hydrogen atoms that were not exchanged with deuterium in 1lzn are highlighted and classified on the basis of the deuterium occupancy in H/D-exchanged HEWL, as indicated by the background colors: the amide hydrogen atoms not exchanged in both H/D-exchanged HEWL and 1lzn are presented in green, those exchanged only in H/D-exchanged HEWL and not in 1lzn are in yellow (see the text), and the others are in dark gray. (d) The positions of the amide hydrogen atoms that were not exchanged with deuterium in 1lzn, and the side-chain NH hydrogen atom of Trp28 (28s in the figure), represented as a ball model. The color code is the same as in (c). The subscript numbers of the balls indicate the residue numbers. |
![[Figure 1]](fs5182fig1.jpg)
 | JOURNAL OF APPLIED CRYSTALLOGRAPHY |
ISSN: 1600-5767
