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Figure 13
Use and overuse of very rare cis-non-Pro peptides. (a) A clear, genuine cis-non-Pro in PDB entry 2ddx at 0.86 Å resolution, flagged by the seagreen trapezoid. (b) Time-course plot of the epidemic overuse of cis-non-Pro peptides. (c) An example of how cis peptides can fit better than trans peptides into patchy, poor electron density at 1.2σ. PDB entry 2j82, 1092 loop.

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983
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