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Figure 2.
Figure 2. Detail of the W*-loop showing the non-planar
peptide linkage between Ser215 and Ala216, and the double
conformation of Ser215 that allows the formation of different
hydrogen bonds for the stabilization of the W*-loop (stereo
view). The s[A]-weighted 2 mF[o] -DF[c] electron density map
(colored in blue) at 1.30 Å resolution is contoured at
1.5s.
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