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Figure 1.
Fig. 1. (A) Organization of the [(Pro-Pro-Gly)[10][3]
triple helices in the ac plane. Chains are colored with a
ramping code from blue (N-termini) to red (C-termini). The two
molecules in the asymmetric unit are the top-center (molecule 1)
and the bottom-center (molecule 2) molecules. (B) Average model
obtained in the subcell approximation (Vitagliano et al. 2001a)
in the ac` plane. The c` corresponds to a ninth of the
full-length c axis. (C) Electron density map (2Fo-Fc), extended
to the whole unit cell, contoured at 2.0  . (D) Omit
map (Fo-Fc) of a representative triplet contoured at 3.5 .
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