issue contents
January 2025 issue
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Cover illustration: AlphaFold-guided molecular replacement: a comparison of the AlphaFold model of the α2/β5 protein from C. elegans with the refined structure [Wang et al. (2025), Acta Cryst. D81, 4–21].
CCP4
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The Guest Editors introduce the special issue based on talks at the CCP4 Study Weekend 2023. The virtual issue is available at https://journals.iucr.org/special_issues/2024/CCP42023/.
research papers
AlphaFold predictions of protein structures can be highly effective for crystal structure determination by the method of molecular replacement. A high degree of automation is possible with attention to prediction-reliability cutoffs, delineation of domains, and subclusterings to reveal alternative conformations. An AF-guided MR script, thus devised and openly available, solved 93% of 372 test cases.
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This study highlights the efficiency and effectiveness of small-wedge synchrotron crystallography in analyzing protein structures through massive data collection and advanced data-processing techniques, including machine learning, resulting in significant improvements in structural information.
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Crystal structures of ACDC domains derived from distinct Plasmodium ApiAP2 proteins reveal a conserved, unique noncanonical four-helix bundle architecture.