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Figure 2
Conformations of a dipeptide unit described by the three DipSpace axes. (a) Representative dipeptide units from the negative subspace with their two DipSpace coordinates fixed while varying the third coordinate between its minimum (blue) and maximum (red) values, as described in §[link]2. (b) Exemplary projection of the DipSpace on the Ramachandran plot with its general limits (Lovell et al., 2003BB37) shown. Stars mark the path through the conformations shown in (a). The nomenclature follows that of Hollingsworth & Karplus (2010BB20): β, β-strands; α, α-helices, γ', γ'-turns; δ, bridge region, several types of turns; PII, PII spirals.

IUCrJ
Volume 4| Part 5| September 2017| Pages 657-670
ISSN: 2052-2525
https://doi.org/10.1107/S2052252517008466