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Figure 6
(a) Data-point distribution and 2% contour in the χ2 (into page), χ3 (vertical) and χ4 (near-horizontal) dimensions for quality-filtered Arg residues with χ1 trans. (b) A valid rotamer outlier: Gln321 in PDB entry 1n83, with its eclipsed χ2 (−119°) held by three side-chain hydrogen bonds and clearly validated by the electron density.

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983
Volume 74| Part 2| February 2018| Pages 132-142
https://doi.org/10.1107/S2059798317009834
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