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Taniguchi H, Kawamoto S, Monobe K, Aoki S. Data on molecular docking and molecular dynamics targeting Mycobacterium tuberculosis shikimic acid kinase. Data Brief 2024; 54:110370. [PMID: 38590616 PMCID: PMC10999656 DOI: 10.1016/j.dib.2024.110370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/28/2023] [Accepted: 03/21/2024] [Indexed: 04/10/2024] Open
Abstract
We have previously performed a hierarchical in silico screening of a Mycobacterium tuberculosis shikimic acid kinase [1]. Specifically, 11 compounds were screened from a library of 154,118 compounds provided by ChemBridge [2] using UCSF DOCK [3] and the GOLD [4] program in the first and second steps, respectively. Molecular dynamic simulations were further performed on compound 2 (2-[(5Z)-5-(1-benzyl-5bromo-2-oxoindol-3-(5Z)-5-(1-benzyl-5-bromo-2-oxoindol-3-(5Z)-4-oxo-2 ylidene)-4oxo-2-sulfanylidene-1,3-thiazolidin-3-yl] acetic acid), which showed antimicrobial efficacy. These processes yielded ligand docking scores and trajectories. In this data article, we have added solvent-accessible surface area and PCA analyses, which were calculated from the raw docking scores and trajectories. Data obtained from molecular docking and molecular dynamic simulations are useful in two ways: (1) Further support for previous work (2) Provides a stepping stone for experimental scientists to conduct in silico studies and research ideas for other drug discovery researchers and computational biologists. We believe that this article will provide an opportunity to develop new Mycobacterium tuberculosis therapeutics through searching for analogs and inhibitors against new targets.
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Affiliation(s)
- Hinata Taniguchi
- Department of Bioscience and Bioinformatics, School of Computer Science and Systems Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka-shi, Fukuoka 820-8502, Japan
| | - Shuhei Kawamoto
- Department of Bioscience and Bioinformatics, School of Computer Science and Systems Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka-shi, Fukuoka 820-8502, Japan
| | - Kohei Monobe
- Department of Bioscience and Bioinformatics, School of Computer Science and Systems Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka-shi, Fukuoka 820-8502, Japan
| | - Shunsuke Aoki
- Department of Bioscience and Bioinformatics, School of Computer Science and Systems Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka-shi, Fukuoka 820-8502, Japan
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Ochi Y, Matsui T, Inoue K, Monobe K, Sakamoto H, Aoki S, Taira J. Computational Screening and Experimental Validation of Inhibitor Targeting the Complex Formation of Grb14 and Insulin Receptor. Molecules 2023; 29:198. [PMID: 38202781 PMCID: PMC10780909 DOI: 10.3390/molecules29010198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 12/25/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
The development of drugs targeting gene products associated with insulin resistance holds the potential to enhance our understanding of type 2 diabetes mellitus (T2DM). The virtual screening, based on a three-dimensional (3D) protein structure, is a potential technique to accelerate the development of molecular target drugs. Among the targets implicated in insulin resistance, the genetic characterization and protein function of Grb14 have been clarified without contradiction. The Grb14 gene displays significant variations in T2DM, and its gene product is known to inhibit the function of the insulin receptor (IR) by directly binding to the tyrosine kinase domain. In the present study, a virtual screening, based on a 3D structure of the IR tyrosine kinase domain (IRβ) in complex with part of Grb14, was conducted to find compounds that can disrupt the complex formation between Grb14 and IRβ. First, ten compounds were selected from 154,118 compounds via hierarchical in silico structure-based drug screening, composed of grid docking-based and genetic algorithm-based programs. The experimental validations suggested that the one compound can affect the blood glucose level. The molecular dynamics simulations and co-immunoprecipitation analysis showed that the compound did not completely suppress the protein-protein interaction between Grb14 and IR, though competitively bound to IR with the tyrosine kinase pseudosubstrate region in Grb14.
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Affiliation(s)
- Yosuke Ochi
- Department of Bioscience and Bioinformatics, Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka 820-8502, Japan
| | - Takanori Matsui
- Department of Pathophysiology and Therapeutics of Diabetic Vascular Complications, Kurume University School of Medicine, Kurume 830-0011, Japan
| | - Keitaro Inoue
- Department of Bioscience and Bioinformatics, Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka 820-8502, Japan
| | - Kohei Monobe
- Department of Bioscience and Bioinformatics, Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka 820-8502, Japan
| | - Hiroshi Sakamoto
- Department of Bioscience and Bioinformatics, Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka 820-8502, Japan
| | - Shunsuke Aoki
- Department of Bioscience and Bioinformatics, Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka 820-8502, Japan
| | - Junichi Taira
- Department of Bioscience and Bioinformatics, Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka 820-8502, Japan
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Monobe K, Taniguchi H, Aoki S. In silico Identification of Potential Inhibitors Against Staphylococcus Aureus Tyrosyl-tRNA Synthetase. Curr Comput Aided Drug Des 2023:CAD-EPUB-132467. [PMID: 37309761 DOI: 10.2174/1573409919666230612120819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 04/28/2023] [Accepted: 05/16/2023] [Indexed: 06/14/2023]
Abstract
BACKGROUND Drug-resistant Staphylococcus aureus (S. aureus) has spread from nosocomial to community-acquired infections. Novel antimicrobial drugs that are effective against resistant strains should be developed. S. aureus tyrosyl-tRNA synthetase (saTyrRS) is considered essential for bacterial survival and is an attractive target for drug screening. OBJECTIVE The purpose of this study was to identify potential new inhibitors of saTyrRS by screening compounds in silico and evaluating them using molecular dynamics (MD) simulations. METHODS A 3D structural library of 154,118 compounds was screened using the DOCK and GOLD docking simulations and short-time MD simulations. The selected compounds were subjected to MD simulations of a 75-ns time frame using GROMACS. RESULTS Thirty compounds were selected by hierarchical docking simulations. The binding of these compounds to saTyrRS was assessed by short-time MD simulations. Two compounds with an average value of less than 0.15 nm for the ligand RMSD were ultimately selected. The long-time (75 ns) MD simulation results demonstrated that two novel compounds bound stably to saTyrRS in silico. CONCLUSION Two novel potential saTyrRS inhibitors with different skeletons were identified by in silico drug screening using MD simulations. The in vitro validation of the inhibitory effect of these compounds on enzyme activity and their antibacterial effect on drug-resistant S. aureus would be useful for developing novel antibiotics.
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Affiliation(s)
- Kohei Monobe
- Department of Bioscience and Bioinformatics, Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka, Japan
| | - Hinata Taniguchi
- Department of Bioscience and Bioinformatics, Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka, Japan
| | - Shunsuke Aoki
- Department of Bioscience and Bioinformatics, Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka, Japan
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Matsunaga T, Monobe K, Aoki S. Identification of a Chemical Inhibitor with a Novel Scaffold Targeting Decaprenylphosphoryl-β-D-Ribose Oxidase (DprE1). Infect Disord Drug Targets 2023:IDDT-EPUB-130076. [PMID: 36892121 DOI: 10.2174/1871526523666230309110705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 01/26/2023] [Accepted: 01/30/2023] [Indexed: 03/10/2023]
Abstract
BACKGROUND Tuberculosis is the second leading cause of death from infectious diseases worldwide. Multidrug-resistant Mycobacterium tuberculosis is spreading throughout the world, creating a crisis. Hence, there is a need to develop anti-tuberculosis drugs with novel structures and versatile mechanisms of action. OBJECTIVE In this study, we identified antimicrobial compounds with a novel skeleton that inhibits mycobacterium decaprenylphosphoryl-β-D-ribose oxidase (DprE1). METHODS A multi-step, in silico, structure-based drug screening identified potential DprE1 inhibitors from a library of 154,118 compounds. We experimentally verified the growth inhibitory effects of the eight selected candidate compounds against Mycobacterium smegmatis. Molecular dynamics simulations were performed to understand the mechanism of molecular interactions between DprE1 and ompound 4. RESULTS Eight compounds were selected through in silico screening. Compound 4 showed strong growth inhibition against M. smegmatis. Molecular dynamics simulation (50 ns) predicted direct and stable binding of Compound 4 to the active site of DprE1. CONCLUSION The structural analysis of the novel scaffold in Compound 4 can pave way for anti-tuberculosis drug development and discovery.
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Affiliation(s)
- Tatsuki Matsunaga
- Department of Bioscience and Bioinformatics, Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka, Japan
| | - Kohei Monobe
- Department of Bioscience and Bioinformatics, Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka, Japan
| | - Shunsuke Aoki
- Department of Bioscience and Bioinformatics, Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka, Japan
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Yokoyama F, Achife CE, Takahira K, Yamashita Y, Monobe K, Kusano F, Nishi K. Morphologies of oriented alginate gels crosslinked with various divalent metal ions. J MACROMOL SCI B 2006. [DOI: 10.1080/00222349208215465] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- F. Yokoyama
- a Department of Applied Chemistry, Faculty of Engineering , Okayama University Tsushima , Okayama, 700, Japan
| | - C. E. Achife
- a Department of Applied Chemistry, Faculty of Engineering , Okayama University Tsushima , Okayama, 700, Japan
| | - K. Takahira
- a Department of Applied Chemistry, Faculty of Engineering , Okayama University Tsushima , Okayama, 700, Japan
| | - Y. Yamashita
- a Department of Applied Chemistry, Faculty of Engineering , Okayama University Tsushima , Okayama, 700, Japan
| | - K. Monobe
- a Department of Applied Chemistry, Faculty of Engineering , Okayama University Tsushima , Okayama, 700, Japan
| | - F. Kusano
- b Industrial Technology Center of Okayama , Prefecture Ifuku-cho , Okayama, 700, Japan
| | - K. Nishi
- b Industrial Technology Center of Okayama , Prefecture Ifuku-cho , Okayama, 700, Japan
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Abstract
The effects of capsaicin on cellular growth and intracellular calcium mobilization were examined in human cervical carcinoma derivation, HeLa cells. Capsaicin inhibited cellular growth and increased intracellular calcium level in HeLa cells. This capsaicin-induced intracellular calcium concentration rise was blocked by capsazepin, vanilloid (capsaicin) receptor antagonist. But, an intracellular calcium chelator BAPTA/AM did not block the inhibitory effect of capsaicin on cellular growth. These observations suggest that intracellular calcium mobilization is not required for the capsaicin-induced inhibition of cellular growth.
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Affiliation(s)
- K Takahata
- Applied Cell Biochemistry and Cell Culture, Faculty of Agriculture, Okayama University, Japan
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Abstract
There is a growing number of animal models and clinical trials of n-3 polyunsaturated fatty acid (PUFAs) supplementation in disease. Epidemiologic and biochemical studies have suggested beneficial effects of n-3 PUFAs. But also, the use of n-3 PUFAs has some potential toxicological risks that can be circumvented by careless processing, storing, and preserving the PUFAs. The use of n-3 PUFAs is safe if appropriate preparations and dosages are selected. Much research is needed to clarify their use under different disease conditions. The newly established clinical and nutritional facts on n-3 PUFAs will induce industry to develop food products based on this knowledge.
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Affiliation(s)
- K Takahata
- Faculty of Agriculture, Okayama University, Japan.
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Yokoyama F, Achife EC, Momoda J, Shimamura K, Monobe K. Morphology of optically anisotropic agarose hydrogel prepared by directional freezing. Colloid Polym Sci 1990. [DOI: 10.1007/bf01410297] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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