Allosteric

Rajitha Rajeshwar T1, John H Lagergren2, Jeremy C Smith1

  • 1UT/ORNL Center for Molecular Biophysics, Oak Ridge National Laboratory, Oak Ridge, Tennessee; Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, Tennessee; Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee.

Biophysical journal
|December 12, 2025
PubMed
概括

这项研究使用机器学习来预测蛋白质的全性状态,这对于理解蛋白质功能和开发向癌症药物至关重要. 原子接触地图和深度学习在分类KRas蛋白状态时达到高达90%的准确性.

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Cooperative allosteric transitions can occur in multimeric proteins, where each subunit of the protein has its own ligand-binding site. When a ligand binds to any of these subunits, it triggers a conformational change that affects the binding sites in the other subunits; this can change the affinity of the other sites for their respective ligands. The ability of the protein to change the shape of its binding site is attributed to the presence of a mix of flexible and stable segments in the...
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Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
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An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
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