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Relative Binding En...
Relative Binding Energies Predict Crystallographic Binding Modes of Ethionamide Booster Lead Compounds
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- Tatum, Natalie J. (författare)
- Univ Durham, Dept Chem, South Rd, Durham DH1 3LE, England
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- Duarte, Fernanda (författare)
- Univ Oxford, Chem Res Lab, Dept Chem, Mansfield Rd, Oxford OX1 3TA, England
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- Kamerlin, Shina C. Lynn, 1981- (författare)
- Uppsala universitet,Biokemi
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- Pohl, Ehmke (författare)
- Univ Durham, Dept Chem, South Rd, Durham DH1 3LE, England;Univ Durham, Dept Biosci, Durham DH1 3LE, England;Univ Durham, Biophys Sci Inst, Durham DH1 3LE, England
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(creator_code:org_t)
- 2019-04-09
- 2019
- Engelska.
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Ingår i: The Journal of Physical Chemistry Letters. - : AMER CHEMICAL SOC. - 1948-7185. ; 10:9, s. 2244-2249
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- Transcriptional repressor EthR from Mycobacterium tuberculosis is a valuable target for antibiotic booster drugs. We previously reported a virtual screening campaign to identify EthR inhibitors for development. Two ligand binding orientations were often proposed, though only the top scoring pose was utilized for filtering of the large data set. We obtained biophysically validated hits, some of which yielded complex crystal structures. In some cases, the crystallized binding mode and top scoring mode agree, while for others an alternate ligand binding orientation was found. In this contribution, we combine rigid docking, molecular dynamics simulations, and the linear interaction energy method to calculate binding free energies and derive relative binding energies for a number of EthR inhibitors in both modes. This strategy allowed us to correctly predict the most favorable orientation. Therefore, this widely applicable approach will be suitable to triage multiple binding modes within EthR and other potential drug targets with similar characteristics.
Ämnesord
- NATURVETENSKAP -- Biologi -- Strukturbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Structural Biology (hsv//eng)
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