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Figure 6
(a) Number of high-count pixels per oscillation degree versus resolution for PDB entry 4exr. Dashed vertical lines show resolutions where ice rings exclusive to hexagonal ice and to stacking-disordered ice with a large hexagonal fraction occur, and solid lines show resolutions common to hexagonal, cubic and stacking-disordered ice. The 2D diffraction frames taken from the IRRMC show no evidence of ice rings. (b) A 2D diffraction image (0.5° oscillation) for PDB entry 4exr taken from the IRRMC, with red circles drawn at the locations of outlier pixels and solid guidelines drawn at ice-ring resolutions. (c) 1D azimuthally averaged diffraction intensity versus resolution, calculated using every 30th 2D frame in the data set, confirming the absence of ice rings.

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983
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