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Self-alignment results for (a) Rapamycin immunosuppressant drug (PDB ID 1fkb) containing a macrocyclic ring of 29 backbone atoms and (b) Histone H3 (PDB ID 4 h75) with 35 torsion angles obtained by using CSAlign (green backbone structure) and “Flexi-LS-align (option)” (orange backbone structure). Crystal structures are colored in gray. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)
