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|a 1520-4804
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100 1 _ |0 P:(DE-H253)PIP1100083
|a Sweeney, Aaron
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245 _ _ |a ChemEM: Flexible Docking of Small Molecules in Cryo-EM Structures
260 _ _ |a Washington, DC
|b ACS
|c 2023
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520 _ _ |a Cryo-electron microscopy (cryo-EM), through resolution advancements, has become pivotal in structure-based drug discovery. However, most cryo-EM structures are solved at 3–4 Å resolution, posing challenges for small-molecule docking and structure-based virtual screening due to issues in the precise positioning of ligands and the surrounding side chains. We present ChemEM, a software package that employs cryo-EM data for the accurate docking of one or multiple ligands in a protein-binding site. Validated against a highly curated benchmark of high- and medium-resolution cryo-EM structures and the corresponding high-resolution controls, ChemEM displayed impressive performance, accurately placing ligands in all but one case, often surpassing cryo-EM PDB-deposited solutions. Even without including the cryo-EM density, the ChemEM scoring function outperformed the well-established AutoDock Vina score. Using ChemEM, we illustrate that valuable information can be extracted from maps at medium resolution and underline the utility of cryo-EM structures for drug discovery.
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700 1 _ |0 P:(DE-H253)PIP1098630
|a Mulvaney, Thomas
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700 1 _ |0 P:(DE-H253)PIP1100756
|a Maiorca, Mauro
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700 1 _ |0 P:(DE-H253)PIP1094132
|a Topf, Maya
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|d 2023-12-29
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|t Journal of Medicinal Chemistry
|v 67
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|y 2023
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Marc 21