issue contents

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983

October 2024 issue

Highlighted illustration

Cover illustration: β-Glucosidase from the thermophilic bacterium Caldicellulosiruptor saccharolyticus (Bgl1) [Sotiropoulou et al. (2024), Acta Cryst. D80, 733–743]. Superposition of the crystal structures of Bgl1 (red) and β-glucosidase from C. cellulovorans (green). The catalytic site of Bgl1 and an additional adjacent cavity that was detected by the DeepSite algorithm are highlighted in surface representation (yellow).

CCP4


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This article examines the application of anomalous scattering for the identification of elements within crystal structures of macromolecules.

research papers


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Beamstops and beamstop shadows can lead to erroneous reflection measurements in crystallographic diffraction experiments, which is a common problem in data processing. Here, a method is presented that combines crystallographic statistics with machine learning to robustly detect such reflections.

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Crystal structures of a β-glucosidase from the thermophilic bacterium C. saccharolyticus (Bgl1) and its complex with glucose were determined at 1.47 and 1.95 Å resolution, respectively. Comparison of Bgl1 with sequence or structural homologues showed that Bgl1 is quite similar except for two regions, one of which seems to be a unique insertion of residues that is only present in Bgl1.

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A description is given of new deep-learning tools that analyse experimental micrographs of crystallization experiments to enable the automation of outcome classification, crystal detection and determination of locations to dispense compounds for fragment-based drug discovery at Diamond Light Source.
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