The Surprising Importance of Peptide Bond Contacts in Drug–Protein Interactions
- Georgia Inst. of Technology, Atlanta, GA (United States)
- Bristol-Myers Squibb Company, Pennington, NJ (United States)
Abstract The study of noncovalent interactions, notably including drug–protein binding, relies heavily on the language of localized functional group contacts: hydrogen bonding, π–π interactions, CH–π contacts, halogen bonding, etc. Applying the state‐of‐the‐art functional group symmetry‐adapted perturbation theory (F‐SAPT) to an important question of chloro versus methyl aryl substitution in factor Xa inhibitor drugs, we find that a localized contact model provides an incorrect picture for the origin of the enhancement of chloro‐containing ligands. Instead, the enhancement is found to originate from many intermediate‐range contacts distributed throughout the binding pocket, particularly including the peptide bonds in the protein backbone. The contributions from these contacts are primarily electrostatic in nature, but require ab initio computations involving nearly the full drug–protein pocket system to be accurately quantified.
- Research Organization:
- Krell Institute, Ames, IA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- FG02-97ER25308
- OSTI ID:
- 1533136
- Alternate ID(s):
- OSTI ID: 1373973
- Journal Information:
- Chemistry - A European Journal, Vol. 23, Issue 33; ISSN 0947-6539
- Publisher:
- ChemPubSoc EuropeCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Stacking Interactions of Heterocyclic Drug Fragments with Protein Amide Backbones
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journal | March 2018 |
Recent developments in symmetry‐adapted perturbation theory
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journal | November 2019 |
On the applicability of functional-group symmetry-adapted perturbation theory and other partitioning models for chiral recognition – the case of popular drug molecules interacting with chiral phases
|
journal | January 2019 |
Self-consistent charge embedding at very low cost, with application to symmetry-adapted perturbation theory
|
journal | July 2019 |
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