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Figure 2
(A), (B) WAXS data of AT DNA and Mix DNA with increasing qmax cutoffs. Inset: P(r) distributions computed from AT DNA and Mix DNA WAXS data with progressive qmax cutoffs (0.4–2.0 Å−1, pale gray to black) using IFT. Higher qmax values reveal periodic peaks. (C), (D) Peak extraction from P(r) computed with qmax = 2.0 Å−1. Inset: peak position versus peak index (k) (between 20 and 70 Å) shows linear spacing with slope 3.23 ± 0.01 Å in AT DNA and 3.11 ± 0.01 Å in Mix DNA, demonstrating differences in base-stacking periodicity.

IUCrJ
Volume 13| Part 5| September 2026| Pages 650-658
ISSN: 2052-2525
https://doi.org/10.1107/S2052252526007700