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Hakmi M, Bouricha EM, El Harti J, Amzazi S, Belyamani L, Khanfri JE, Ibrahimi A. Computational modeling and druggability assessment of Aggregatibacter actinomycetemcomitans leukotoxin. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2022; 222:106952. [PMID: 35724475 DOI: 10.1016/j.cmpb.2022.106952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 05/30/2022] [Accepted: 06/12/2022] [Indexed: 06/15/2023]
Abstract
The leukotoxin (LtxA) of Aggregatibacter actinomycetemcomitans (A. actinomycetemcomitans) is a protein exotoxin belonging to the repeat-in-toxin family (RTX). Numerous studies have demonstrated that LtxA may play a critical role in the pathogenicity of A. actinomycetemcomitans since hyper-leukotoxic strains have been associated with severe disease. Accordingly, considerable effort has been made to elucidate the mechanisms by which LtxA interacts with host cells and induce their death. However, these attempts have been hampered by the unavailability of a tertiary structure of the toxin, which limits the understanding of its molecular properties and mechanisms. In this paper, we used homology and template free modeling algorithms to build the complete tertiary model of LtxA at atomic level in its calcium-bound Holo-state. The resulting model was refined by energy minimization, validated by Molprobity and ProSA tools, and subsequently subjected to a cumulative 600ns of all-atom classical molecular dynamics simulation to evaluate its structural aspects. The druggability of the proposed model was assessed using Fpocket and FTMap tools, resulting in the identification of four putative cavities and fifteen binding hotspots that could be targeted by rational drug design tools to find new ligands to inhibit LtxA activity.
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Affiliation(s)
- Mohammed Hakmi
- Medical Biotechnology Laboratory (MedBiotech), Bioinova Research Center, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Morocco
| | - El Mehdi Bouricha
- Medical Biotechnology Laboratory (MedBiotech), Bioinova Research Center, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Morocco
| | - Jaouad El Harti
- Therapeutic Chemistry Laboratory, Medical Biotechnology Laboratory (MedBiotech), Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Morocco
| | - Said Amzazi
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, and Genomic Center of Human Pathologies, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco
| | - Lahcen Belyamani
- Emergency Department, Military Hospital Mohammed V, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco
| | - Jamal Eddine Khanfri
- Medical Biotechnology Laboratory (MedBiotech), Bioinova Research Center, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Morocco
| | - Azeddine Ibrahimi
- Medical Biotechnology Laboratory (MedBiotech), Bioinova Research Center, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Morocco.
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2
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Inverse Mixed-Solvent Molecular Dynamics for Visualization of the Residue Interaction Profile of Molecular Probes. Int J Mol Sci 2022; 23:ijms23094749. [PMID: 35563139 PMCID: PMC9103889 DOI: 10.3390/ijms23094749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/18/2022] [Accepted: 04/23/2022] [Indexed: 02/01/2023] Open
Abstract
To ensure efficiency in discovery and development, the application of computational technology is essential. Although virtual screening techniques are widely applied in the early stages of drug discovery research, the computational methods used in lead optimization to improve activity and reduce the toxicity of compounds are still evolving. In this study, we propose a method to construct the residue interaction profile of the chemical structure used in the lead optimization by performing “inverse” mixed-solvent molecular dynamics (MSMD) simulation. Contrary to constructing a protein-based, atom interaction profile, we constructed a probe-based, protein residue interaction profile using MSMD trajectories. It provides us the profile of the preferred protein environments of probes without co-crystallized structures. We assessed the method using three probes: benzamidine, catechol, and benzene. As a result, the residue interaction profile of each probe obtained by MSMD was a reasonable physicochemical description of the general non-covalent interaction. Moreover, comparison with the X-ray structure containing each probe as a ligand shows that the map of the interaction profile matches the arrangement of amino acid residues in the X-ray structure.
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3
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Chan WKB, Olson KM, Wotring JW, Sexton JZ, Carlson HA, Traynor JR. In silico analysis of SARS-CoV-2 proteins as targets for clinically available drugs. Sci Rep 2022; 12:5320. [PMID: 35351926 PMCID: PMC8963407 DOI: 10.1038/s41598-022-08320-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 03/02/2022] [Indexed: 12/20/2022] Open
Abstract
The ongoing pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) requires treatments with rapid clinical translatability. Here we develop a multi-target and multi-ligand virtual screening method to identify FDA-approved drugs with potential activity against SARS-CoV-2 at traditional and understudied viral targets. 1,268 FDA-approved small molecule drugs were docked to 47 putative binding sites across 23 SARS-CoV-2 proteins. We compared drugs between binding sites and filtered out compounds that had no reported activity in an in vitro screen against SARS-CoV-2 infection of human liver (Huh-7) cells. This identified 17 "high-confidence", and 97 "medium-confidence" drug-site pairs. The "high-confidence" group was subjected to molecular dynamics simulations to yield six compounds with stable binding poses at their optimal target proteins. Three drugs-amprenavir, levomefolic acid, and calcipotriol-were predicted to bind to 3 different sites on the spike protein, domperidone to the Mac1 domain of the non-structural protein (Nsp) 3, avanafil to Nsp15, and nintedanib to the nucleocapsid protein involved in packaging the viral RNA. Our "two-way" virtual docking screen also provides a framework to prioritize drugs for testing in future emergencies requiring rapidly available clinical drugs and/or treating diseases where a moderate number of targets are known.
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Affiliation(s)
- Wallace K B Chan
- Department of Pharmacology, University of Michigan, 2301 MSRBIII, 1150 W Medical Center Dr, Ann Arbor, MI, 48190-5606, USA
- Edward F Domino Research Center, University of Michigan, Ann Arbor, MI, 48190, USA
| | - Keith M Olson
- Department of Pharmacology, University of Michigan, 2301 MSRBIII, 1150 W Medical Center Dr, Ann Arbor, MI, 48190-5606, USA
- Edward F Domino Research Center, University of Michigan, Ann Arbor, MI, 48190, USA
| | - Jesse W Wotring
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI, 48190, USA
| | - Jonathan Z Sexton
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI, 48190, USA
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48190, USA
| | - Heather A Carlson
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI, 48190, USA
| | - John R Traynor
- Department of Pharmacology, University of Michigan, 2301 MSRBIII, 1150 W Medical Center Dr, Ann Arbor, MI, 48190-5606, USA.
- Edward F Domino Research Center, University of Michigan, Ann Arbor, MI, 48190, USA.
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI, 48190, USA.
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4
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Iwamoto M, Masuya T, Hosose M, Tagawa K, Ishibashi T, Suyama K, Nose T, Yoshihara E, Downes M, Evans RM, Matsushima A. Bisphenol A derivatives act as novel coactivator-binding inhibitors for estrogen receptor β. J Biol Chem 2021; 297:101173. [PMID: 34499926 PMCID: PMC8551653 DOI: 10.1016/j.jbc.2021.101173] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 09/01/2021] [Accepted: 09/03/2021] [Indexed: 01/16/2023] Open
Abstract
Bisphenol A and its derivatives are recognized as endocrine disruptors based on their complex effects on estrogen receptor (ER) signaling. While the effects of bisphenol derivatives on ERα have been thoroughly evaluated, how these chemicals affect ERβ signaling is less well understood. Herein, we sought to identify novel ERβ ligands using a radioligand competitive binding assay to screen a chemical library of bisphenol derivatives. Many of the compounds identified showed intriguing dual activities as both ERα agonists and ERβ antagonists. Docking simulations of these compounds and ERβ suggested that they bound not only to the canonical binding site of ERβ but also to the coactivator binding site located on the surface of the receptor, suggesting that they act as coactivator-binding inhibitors (CBIs). Receptor-ligand binding experiments using WT and mutated ERβ support the presence of a second ligand-interaction position at the coactivator-binding site in ERβ, and direct binding experiments of ERβ and a coactivator peptide confirmed that these compounds act as CBIs. Our study is the first to propose that bisphenol derivatives act as CBIs, presenting critical insight for the future development of ER signaling-based drugs and their potential to function as endocrine disruptors.
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Affiliation(s)
- Masaki Iwamoto
- Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka, Japan
| | - Takahiro Masuya
- Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka, Japan
| | - Mari Hosose
- Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka, Japan
| | - Koki Tagawa
- Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka, Japan
| | - Tomoka Ishibashi
- Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka, Japan
| | - Keitaro Suyama
- Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka, Japan
| | - Takeru Nose
- Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka, Japan
| | - Eiji Yoshihara
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, California, USA; Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, California, USA; David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California, USA
| | - Michael Downes
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, California, USA
| | - Ronald M Evans
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, California, USA
| | - Ayami Matsushima
- Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka, Japan.
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5
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Shiba-Ishii A, Hong J, Hirokawa T, Kim Y, Nakagawa T, Sakashita S, Sakamoto N, Kozuma Y, Sato Y, Noguchi M. Stratifin Inhibits SCFFBW7 Formation and Blocks Ubiquitination of Oncoproteins during the Course of Lung Adenocarcinogenesis. Clin Cancer Res 2019; 25:2809-2820. [DOI: 10.1158/1078-0432.ccr-18-3631] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/11/2018] [Accepted: 01/17/2019] [Indexed: 11/16/2022]
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6
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Cao C, Xu S. Improving the performance of the PLB index for ligand-binding site prediction using dihedral angles and the solvent-accessible surface area. Sci Rep 2016; 6:33232. [PMID: 27619067 PMCID: PMC5020399 DOI: 10.1038/srep33232] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 08/23/2016] [Indexed: 12/02/2022] Open
Abstract
Protein ligand-binding site prediction is highly important for protein function determination and structure-based drug design. Over the past twenty years, dozens of computational methods have been developed to address this problem. Soga et al. identified ligand cavities based on the preferences of amino acids for the ligand-binding site (RA) and proposed the propensity for ligand binding (PLB) index to rank the cavities on the protein surface. However, we found that residues exhibit different RAs in response to changes in solvent exposure. Furthermore, previous studies have suggested that some dihedral angles of amino acids in specific regions of the Ramachandran plot are preferred at the functional sites of proteins. Based on these discoveries, the amino acid solvent-accessible surface area and dihedral angles were combined with the RA and PLB to obtain two new indexes, multi-factor RA (MF-RA) and multi-factor PLB (MF-PLB). MF-PLB, PLB and other methods were tested using two benchmark databases and two particular ligand-binding sites. The results show that MF-PLB can improve the success rate of PLB for both ligand-bound and ligand-unbound structures, particularly for top choice prediction.
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Affiliation(s)
- Chen Cao
- College of Computer Science and Technology, Jilin University, Changchun, Jilin, China
- Key Laboratory of Symbol Computation and Knowledge Engineering of the Ministry of Education, Jilin University, Changchun, Jilin, China
| | - Shutan Xu
- Department of Biochemistry and Molecular Biology, Institute of Bioinformatics, University of Georgia, Athens, GA, USA
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7
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Ung PMU, Ghanakota P, Graham SE, Lexa KW, Carlson HA. Identifying binding hot spots on protein surfaces by mixed-solvent molecular dynamics: HIV-1 protease as a test case. Biopolymers 2016; 105:21-34. [PMID: 26385317 DOI: 10.1002/bip.22742] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 09/14/2015] [Accepted: 09/14/2015] [Indexed: 12/16/2022]
Abstract
Mixed-solvent molecular dynamics (MixMD) simulations use full protein flexibility and competition between water and small organic probes to achieve accurate hot-spot mapping on protein surfaces. In this study, we improved MixMD using human immunodeficiency virus type-1 protease (HIVp) as the test case. We used three probe-water solutions (acetonitrile-water, isopropanol-water, and pyrimidine-water), first at 50% w/w concentration and later at 5% v/v. Paradoxically, better mapping was achieved by using fewer probes; 5% simulations gave a superior signal-to-noise ratio and far fewer spurious hot spots than 50% MixMD. Furthermore, very intense and well-defined probe occupancies were observed in the catalytic site and potential allosteric sites that have been confirmed experimentally. The Eye site, an allosteric site underneath the flap of HIVp, has been confirmed by the presence of a 5-nitroindole fragment in a crystal structure. MixMD also mapped two additional hot spots: the Exo site (between the Gly16-Gly17 and Cys67-Gly68 loops) and the Face site (between Glu21-Ala22 and Val84-Ile85 loops). The Exo site was observed to overlap with crystallographic additives such as acetate and dimethyl sulfoxide that are present in different crystal forms of the protein. Analysis of crystal structures of HIVp in different symmetry groups has shown that some surface sites are common interfaces for crystal contacts, which means that they are surfaces that are relatively easy to desolvate and complement with organic molecules. MixMD should identify these sites; in fact, their occupancy values help establish a solid cut-off where "druggable" sites are required to have higher occupancies than the crystal-packing faces.
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Affiliation(s)
- Peter M U Ung
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, 428 Church St., Ann Arbor, MI, 48109-1065
| | - Phani Ghanakota
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, 428 Church St., Ann Arbor, MI, 48109-1065
| | - Sarah E Graham
- Department of Biophysics, College of LSA, University of Michigan, 930 N. University St., Ann Arbor, MI, 48109-1055
| | - Katrina W Lexa
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, 428 Church St., Ann Arbor, MI, 48109-1065
| | - Heather A Carlson
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, 428 Church St., Ann Arbor, MI, 48109-1065.,Department of Biophysics, College of LSA, University of Michigan, 930 N. University St., Ann Arbor, MI, 48109-1055
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8
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Evidence of colorectal cancer risk associated variant Lys25Ser in the proximity of human bone morphogenetic protein 2. Gene 2013; 522:75-83. [DOI: 10.1016/j.gene.2013.03.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 03/08/2013] [Indexed: 11/18/2022]
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9
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Sheridan RP, Maiorov VN, Holloway MK, Cornell WD, Gao YD. Drug-like density: a method of quantifying the "bindability" of a protein target based on a very large set of pockets and drug-like ligands from the Protein Data Bank. J Chem Inf Model 2010; 50:2029-40. [PMID: 20977231 DOI: 10.1021/ci100312t] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
One approach to estimating the "chemical tractability" of a candidate protein target where we know the atomic resolution structure is to examine the physical properties of potential binding sites. A number of other workers have addressed this issue. We characterize ~290,000 "pockets" from ~42,000 protein crystal structures in terms of a three parameter "pocket space": volume, buriedness, and hydrophobicity. A metric DLID (drug-like density) measures how likely a pocket is to bind a drug-like molecule. This is calculated from the count of other pockets in its local neighborhood in pocket space that contain drug-like cocrystallized ligands and the count of total pockets in the neighborhood. Surprisingly, despite being defined locally, a global trend in DLID can be predicted by a simple linear regression on log(volume), buriedness, and hydrophobicity. Two levels of simplification are necessary to relate the DLID of individual pockets to "targets": taking the best DLID per Protein Data Bank (PDB) entry (because any given crystal structure can have many pockets), and taking the median DLID over all PDB entries for the same target (because different crystal structures of the same protein can vary because of artifacts and real conformational changes). We can show that median DLIDs for targets that are detectably homologous in sequence are reasonably similar and that median DLIDs correlate with the "druggability" estimate of Cheng et al. (Nature Biotechnology 2007, 25, 71-75).
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Affiliation(s)
- Robert P Sheridan
- Chemistry Modeling and Informatics Department, Merck Research Laboratories, Rahway, New Jersey 07065, USA.
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10
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Mehio W, Kemp GJ, Taylor P, Walkinshaw MD. Identification of protein binding surfaces using surface triplet propensities. Bioinformatics 2010; 26:2549-55. [DOI: 10.1093/bioinformatics/btq490] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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11
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Affiliation(s)
- Howard J Feldman
- Chemical Computing Group, Inc., 1010 Sherbrooke Street West, Suite 910, Montreal, Quebec, Canada H3A 2R7
| | - Paul Labute
- Chemical Computing Group, Inc., 1010 Sherbrooke Street West, Suite 910, Montreal, Quebec, Canada H3A 2R7
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12
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Soga S, Kuroda D, Shirai H, Kobori M, Hirayama N. Use of amino acid composition to predict epitope residues of individual antibodies. Protein Eng Des Sel 2010; 23:441-8. [PMID: 20304974 DOI: 10.1093/protein/gzq014] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We identified specific amino acid propensities at the interfaces of antigen-antibody interactions in non-redundant qualified antigen-antibody complex structures from Protein Data Bank. Propensities were expressed by the frequency of each of the 20 x 20 standard amino acid pairs that appeared at the interfaces of the complexes and were named the antibody-specific epitope propensity (ASEP) index. Using this index, we developed a novel method of predicting epitope residues for individual antibodies by narrowing down candidate epitope residues which was predicted by the conventional method. The 74 benchmarked antigens were used in ASEP prediction. The efficiency of this method was assessed using the leave-one-out approach. On elimination of residues with ASEP indices in the lowest 10% of all measured, true positives were enriched for 49 antigens. On subsequent elimination of residues with ASEP indices in the lowest 50%, true positives were enriched for 40 of the 74 antigens assessed. The ASEP index is the first benchmark proposed to predict epitope residues for an individual antibody. Used in combination with mutation experiments, this index has the potential to markedly increase the success ratio of epitope analysis.
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Affiliation(s)
- Shinji Soga
- Molecular Medicine Research Laboratories, Drug Discovery Research, Astellas Pharma Inc., 21 Miyukigaoka, Tsukuba, Ibaraki 305-8585, Japan
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13
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Cavasotto CN, Phatak SS. Homology modeling in drug discovery: current trends and applications. Drug Discov Today 2009; 14:676-83. [PMID: 19422931 DOI: 10.1016/j.drudis.2009.04.006] [Citation(s) in RCA: 272] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2009] [Revised: 04/20/2009] [Accepted: 04/23/2009] [Indexed: 10/20/2022]
Abstract
As structural genomics (SG) projects continue to deposit representative 3D structures of proteins, homology modeling methods will play an increasing role in structure-based drug discovery. Although computational structure prediction methods provide a cost-effective alternative in the absence of experimental structures, developing accurate enough models still remains a big challenge. In this contribution, we report the current developments in this field, discuss in silico modeling limitations, and review the successful application of this technique to different stages of the drug discovery process.
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Affiliation(s)
- Claudio N Cavasotto
- School of Health Information Sciences, The University of Texas Health Science Center at Houston, 7000 Fannin, Suite 860B, Houston, TX 77030, United States.
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Yamaotsu N, Oda A, Hirono S. Determination of ligand-binding sites on proteins using long-range hydrophobic potential. Biol Pharm Bull 2008; 31:1552-8. [PMID: 18670088 DOI: 10.1248/bpb.31.1552] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Here we developed a new program, HydrophoBicity On a Protein (HBOP), to find the ligand-binding site of a protein using the long-range hydrophobic-potential function estimated from the experimental data of Israelachvili and Pashley. We calculated the hydrophobic-potential energies at each grid point of a lattice around a protein using the potential function. The hydrophobic potential was evaluated using the carbon atoms of the hydrophobic residues, with the exception of those of the amide groups. We tested HBOP on 26 types of protein (72 protein-ligand complexes), the three-dimensional structures of which were determined experimentally. Although only one hydrophobic function was used, HBOP could successfully identify the binding sites in all of the proteins tested. Moreover, in 24 of the proteins, the binding sites were located in the most hydrophobic region. Surprisingly, the binding sites on sugar binding proteins were the most hydrophobic sites. It implies that the hydrophobic interaction plays an important role in the formation of protein-ligand complexes.
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Affiliation(s)
- Noriyuki Yamaotsu
- Laboratory of Physical Chemistry for Drug Design, School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan.
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15
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Soga S, Shirai H, Kobori M, Hirayama N. Chemocavity: Specific Concavity in Protein Reserved for the Binding of Biologically Functional Small Molecules. J Chem Inf Model 2008; 48:1679-85. [DOI: 10.1021/ci800113c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shinji Soga
- Molecular Medicine Research Laboratories, Drug Discovery Research, Astellas Pharma Inc., 21 Miyukigaoka, Tsukuba, Ibaraki 305-8585, Japan, and Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1143, Japan
| | - Hiroki Shirai
- Molecular Medicine Research Laboratories, Drug Discovery Research, Astellas Pharma Inc., 21 Miyukigaoka, Tsukuba, Ibaraki 305-8585, Japan, and Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1143, Japan
| | - Masato Kobori
- Molecular Medicine Research Laboratories, Drug Discovery Research, Astellas Pharma Inc., 21 Miyukigaoka, Tsukuba, Ibaraki 305-8585, Japan, and Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1143, Japan
| | - Noriaki Hirayama
- Molecular Medicine Research Laboratories, Drug Discovery Research, Astellas Pharma Inc., 21 Miyukigaoka, Tsukuba, Ibaraki 305-8585, Japan, and Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1143, Japan
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16
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Development of Software Program Predicting the Binding Site and the Binding Mode of Ligands Against a Target Protein. E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY 2008. [DOI: 10.1380/ejssnt.2008.241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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