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Accounting for nonuniformity of bulk-solvent: A mosaic model. | LitMetric

Accounting for nonuniformity of bulk-solvent: A mosaic model.

Protein Sci

Centre for Integrative Biology, Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS-INSERM-UdS, Illkirch, France.

Published: March 2024

AI Article Synopsis

Article Abstract

A flat mask-based model is almost universally used in macromolecular crystallography to account for disordered (bulk) solvent. This model assumes any voxel of the crystal unit cell that is not occupied by the atomic model is occupied by the solvent. The properties of this solvent are assumed to be exactly the same across the whole volume of the unit cell. While this is a reasonable approximation in practice, there are a number of scenarios where this model becomes suboptimal. In this work, we enumerate several of these scenarios and describe a new generalized approach to modeling the bulk-solvent which we refer to as mosaic bulk-solvent model. The mosaic bulk-solvent model allows nonuniform features of the solvent in the crystal to be accounted for in a computationally efficient way. It is implemented in the computational crystallography toolbox and the Phenix software.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10868464PMC
http://dx.doi.org/10.1002/pro.4909DOI Listing

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