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![[Figure 12]](chr5002fig12mag.jpg)
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Figure 12
Examples of the three conformational Trp clusters in the +3 class. (a) m0 (PDB entry 5js4; only the Cβ atoms of non-Trp residues are shown for clarity), (b) m105 (PDB entry 6x8o), (c) p-90 (PDB entry 6qo9). Note that (b) and (c) contain three-centred hydrogen bonds from the TrpCδ1—H and amide groups to the i − 3 carbonyl reminiscent of a 310-helical hydrogen-bonding pattern (canonical amide-to-carbonyl hydrogen bonds are shown as fine dashed lines). |
![[Figure 12]](chr5002fig12.jpg)
 | STRUCTURAL BIOLOGY |
ISSN: 2059-7983
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