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Prabha S, Chauhan P, Warkare S, Pandey KM. A computational investigation of potential plant-based bioactive compounds against drug-resistant Staphylococcus aureus of multiple target proteins. J Biomol Struct Dyn 2023:1-19. [PMID: 38133950 DOI: 10.1080/07391102.2023.2297009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023]
Abstract
Drug-resistant Staphylococcus aureus (DRSA) poses a significant global health threat, like bacteremia, endocarditis, skin, soft tissue, bone, and joint infections. Nowadays, the resistance against conventional drugs has been a prompt and focused medical concern. The present study aimed to explore the inhibitory potential of plant-based bioactive compounds (PBBCs) against effective target proteins using a computational approach. We retrieved and verified 22 target proteins associated with DRSA and conducted a screening process that involved testing 87 PBBCs. Molecular docking was performed between screened PBBCs and reference drugs with selected target proteins via AutoDock. Subsequently, we filtered the target proteins and top PBBCs based on their binding affinity scores. Furthermore, molecular dynamic simulation was carried out through GROMACS for a duration of 100 ns, and the binding free energy was calculated using the gmx_MMPBSA. The result showed consistent hydrogen bonding interactions among the amino acid residues Ser 149, Arg 151, Thr 165, Thr 216, Glu 239, Ser 240, Ile 14, as well as Asn 18, Gln 19, Lys 45, Thr 46, Tyr 109, with their respective target proteins of the penicillin-binding protein and dihydrofolate reductase complex. Additionally, we assessed the pharmacokinetic properties of screened PBBCs via SwissADME and AdmetSAR. The findings suggest that β-amyrin, oleanolic acid, kaempferol, quercetin, and friedelin have the potential to inhibit the selected target proteins. In future research, both in vitro and in vivo, experiments will be needed to establish these PBBCs as potent antimicrobial drugs for DRSA.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sarit Prabha
- Department of Biological Science and Engineering, Maulana Azad National Institute of Technology, Bhopal, India
| | | | - Sudeesh Warkare
- Department of Biological Science and Engineering, Maulana Azad National Institute of Technology, Bhopal, India
| | - Khushhali M Pandey
- Department of Biological Science and Engineering, Maulana Azad National Institute of Technology, Bhopal, India
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2
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Kunamneni A, Montera MA, Durvasula R, Alles SRA, Goyal S, Westlund KN. Rapid Generation and Molecular Docking Analysis of Single-Chain Fragment Variable (scFv) Antibody Selected by Ribosome Display Targeting Cholecystokinin B Receptor (CCK-BR) for Reduction of Chronic Neuropathic Pain. Int J Mol Sci 2023; 24:11035. [PMID: 37446213 DOI: 10.3390/ijms241311035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/06/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
A robust cell-free platform technology, ribosome display in combination with cloning, expression, and purification was utilized to develop single chain Fragment variable (scFv) antibody variants as pain therapy directed at the mouse cholecystokinin B (CCK-B) receptor. Three effective CCK-B peptide-specific scFvs were generated through ribosomal display technology. Soluble expression and ELISA analysis showed that one antibody, scFv77-2 had the highest binding and could be purified from bacterial cells in large quantities. Octet measurements further revealed that the CCK-B scFv77-2 antibody had binding kinetics of KD = 1.794 × 10-8 M. Molecular modeling and docking analyses suggested that the scFv77-2 antibody shaped a proper cavity to embed the whole CCK-B peptide molecule and that a steady-state complex was formed relying on intermolecular forces, including hydrogen bonding, electrostatic force, and hydrophobic interactions. Thus, the scFv antibody can be applied for mechanistic intermolecular interactions and functional in vivo studies of CCK-BR. The high affinity scFv77-2 antibody showed good efficacy with binding to CCK-BR tested in a chronic pain model. In vivo studies validated the efficacy of the CCK-B receptor (CCK-BR) scFv77-2 antibody as a potential therapy for chronic trigeminal nerve injury-induced pain. Mice were given a single dose of the CCK-B receptor (CCK-BR) scFv antibody 3 weeks after induction of a chronic trigeminal neuropathic pain model, during the transition from acute to chronic pain. The long-term effectiveness for the reduction of mechanical hypersensitivity was evident, persisting for months. The anxiety- and depression-related behaviors typically accompanying persisting hypersensitivity subsequently never developed in the mice given CCK-BR scFv. The effectiveness of the antibody is the basis for further development of the lead CCK-BR scFv as a promising non-opioid therapeutic for chronic pain and the long-term reduction of chronic pain- and anxiety-related behaviors.
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Affiliation(s)
- Adinarayana Kunamneni
- Department of Internal Medicine, Mayo Clinic, Jacksonville, FL 32224-1865, USA
- Department of Medicine, Loyola University Medical Center, Maywood, IL 60153-3328, USA
| | - Marena A Montera
- Department of Anesthesiology & Critical Care Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131-0001, USA
| | - Ravi Durvasula
- Department of Internal Medicine, Mayo Clinic, Jacksonville, FL 32224-1865, USA
- Department of Medicine, Loyola University Medical Center, Maywood, IL 60153-3328, USA
| | - Sascha R A Alles
- Department of Anesthesiology & Critical Care Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131-0001, USA
| | - Sachin Goyal
- Department of Anesthesiology & Critical Care Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131-0001, USA
| | - Karin N Westlund
- Department of Anesthesiology & Critical Care Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131-0001, USA
- Biomedical Laboratory Research & Development (121F), New Mexico VA Health Care System, Albuquerque, NM 87108-5153, USA
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Catalytic Antibodies: Design, Expression, and Their Applications in Medicine. Appl Biochem Biotechnol 2023; 195:1514-1540. [PMID: 36222989 PMCID: PMC9554387 DOI: 10.1007/s12010-022-04183-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/28/2022] [Indexed: 01/24/2023]
Abstract
Catalytic antibodies made it feasible to develop new catalysts, which had previously been the subject of research. Scientists have discovered natural antibodies that can hydrolyze substrates such as nucleic acids, proteins, and polysaccharides during decades of research, as well as several ways of producing antibodies with specialized characteristics and catalytic functions. These antibodies are widely used in chemistry, biology, and medicine. Catalytic antibodies can continue to play a role and even fully prevent the emergence of autoimmune disorders, especially in the field of infection and immunity, where the process of its occurrence and development often takes a long time. In this work, the development, design and evolution methodologies, and the expression systems and applications of catalytic antibodies, are discussed. Trial registration: not applicable.
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4
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Yu W, Wu X, Zhao Y, Chen C, Yang Z, Zhang X, Ren J, Wang Y, Wu C, Li C, Chen R, Wang X, Zheng W, Liao H, Yuan X. Computational Simulation of HIV Protease Inhibitors to the Main Protease (Mpro) of SARS-CoV-2: Implications for COVID-19 Drugs Design. Molecules 2021; 26:7385. [PMID: 34885967 PMCID: PMC8659229 DOI: 10.3390/molecules26237385] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 12/03/2021] [Indexed: 12/23/2022] Open
Abstract
SARS-CoV-2 is highly homologous to SARS-CoV. To date, the main protease (Mpro) of SARS-CoV-2 is regarded as an important drug target for the treatment of Coronavirus Disease 2019 (COVID-19). Some experiments confirmed that several HIV protease inhibitors present the inhibitory effects on the replication of SARS-CoV-2 by inhibiting Mpro. However, the mechanism of action has still not been studied very clearly. In this work, the interaction mechanism of four HIV protease inhibitors Darunavir (DRV), Lopinavir (LPV), Nelfinavir (NFV), and Ritonavire (RTV) targeting SARS-CoV-2 Mpro was explored by applying docking, molecular dynamics (MD) simulations, and MM-GBSA methods using the broad-spectrum antiviral drug Ribavirin (RBV) as the negative and nonspecific control. Our results revealed that LPV, RTV, and NFV have higher binding affinities with Mpro, and they all interact with catalytic residues His41 and the other two key amino acids Met49 and Met165. Pharmacophore model analysis further revealed that the aromatic ring, hydrogen bond donor, and hydrophobic group are the essential infrastructure of Mpro inhibitors. Overall, this study applied computational simulation methods to study the interaction mechanism of HIV-1 protease inhibitors with SARS-CoV-2 Mpro, and the findings provide useful insights for the development of novel anti-SARS-CoV-2 agents for the treatment of COVID-19.
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Affiliation(s)
- Wei Yu
- Institute of Biomedicine, Jinan University, Guangzhou 510632, China; (W.Y.); (C.C.); (Y.W.); (C.W.); (C.L.)
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi’an Jiaotong University, Xi’an 710049, China; (Y.Z.); (Z.Y.)
| | - Xiaomin Wu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China; (X.W.); (X.Z.)
| | - Yizhen Zhao
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi’an Jiaotong University, Xi’an 710049, China; (Y.Z.); (Z.Y.)
| | - Chun Chen
- Institute of Biomedicine, Jinan University, Guangzhou 510632, China; (W.Y.); (C.C.); (Y.W.); (C.W.); (C.L.)
| | - Zhiwei Yang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi’an Jiaotong University, Xi’an 710049, China; (Y.Z.); (Z.Y.)
| | - Xiaochun Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China; (X.W.); (X.Z.)
| | - Jiayi Ren
- Zhuhai College of Science and Technology, Zhuhai 519041, China;
| | - Yueming Wang
- Institute of Biomedicine, Jinan University, Guangzhou 510632, China; (W.Y.); (C.C.); (Y.W.); (C.W.); (C.L.)
- Zhuhai Trinomab Biotechnology Co., Ltd., Zhuhai 519040, China; (R.C.); (X.W.); (W.Z.)
| | - Changwen Wu
- Institute of Biomedicine, Jinan University, Guangzhou 510632, China; (W.Y.); (C.C.); (Y.W.); (C.W.); (C.L.)
- Zhuhai Trinomab Biotechnology Co., Ltd., Zhuhai 519040, China; (R.C.); (X.W.); (W.Z.)
| | - Chengming Li
- Institute of Biomedicine, Jinan University, Guangzhou 510632, China; (W.Y.); (C.C.); (Y.W.); (C.W.); (C.L.)
- Zhuhai Trinomab Biotechnology Co., Ltd., Zhuhai 519040, China; (R.C.); (X.W.); (W.Z.)
| | - Rongfeng Chen
- Zhuhai Trinomab Biotechnology Co., Ltd., Zhuhai 519040, China; (R.C.); (X.W.); (W.Z.)
| | - Xiaoli Wang
- Zhuhai Trinomab Biotechnology Co., Ltd., Zhuhai 519040, China; (R.C.); (X.W.); (W.Z.)
| | - Weihong Zheng
- Zhuhai Trinomab Biotechnology Co., Ltd., Zhuhai 519040, China; (R.C.); (X.W.); (W.Z.)
| | - Huaxin Liao
- Institute of Biomedicine, Jinan University, Guangzhou 510632, China; (W.Y.); (C.C.); (Y.W.); (C.W.); (C.L.)
- Zhuhai Trinomab Biotechnology Co., Ltd., Zhuhai 519040, China; (R.C.); (X.W.); (W.Z.)
| | - Xiaohui Yuan
- Institute of Biomedicine, Jinan University, Guangzhou 510632, China; (W.Y.); (C.C.); (Y.W.); (C.W.); (C.L.)
- Zhuhai Trinomab Biotechnology Co., Ltd., Zhuhai 519040, China; (R.C.); (X.W.); (W.Z.)
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Li S, Xu W, Chu S, Ma N, Liu S, Li X, Wang T, Jiang X, Li F, Li Y, Zhang D, Luo Q, Liu J. Computational Design and Study of Artificial Selenoenzyme with Controllable Activity Based on an Allosteric Protein Scaffold. Chemistry 2019; 25:10350-10358. [DOI: 10.1002/chem.201901480] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Indexed: 01/26/2023]
Affiliation(s)
- Siyuan Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical ChemistryJilin University 2699 Qianjin Road Changchun 130012 China
| | - Wanjia Xu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical ChemistryJilin University 2699 Qianjin Road Changchun 130012 China
| | - Shengnan Chu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical ChemistryJilin University 2699 Qianjin Road Changchun 130012 China
| | - Ningning Ma
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical ChemistryJilin University 2699 Qianjin Road Changchun 130012 China
| | - Shengda Liu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical ChemistryJilin University 2699 Qianjin Road Changchun 130012 China
| | - Xiumei Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical ChemistryJilin University 2699 Qianjin Road Changchun 130012 China
| | - Tingting Wang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical ChemistryJilin University 2699 Qianjin Road Changchun 130012 China
| | - Xiaojia Jiang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical ChemistryJilin University 2699 Qianjin Road Changchun 130012 China
| | - Fei Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical ChemistryJilin University 2699 Qianjin Road Changchun 130012 China
| | - Yijia Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical ChemistryJilin University 2699 Qianjin Road Changchun 130012 China
| | - Dongmei Zhang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical ChemistryJilin University 2699 Qianjin Road Changchun 130012 China
| | - Quan Luo
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical ChemistryJilin University 2699 Qianjin Road Changchun 130012 China
| | - Junqiu Liu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical ChemistryJilin University 2699 Qianjin Road Changchun 130012 China
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6
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Molecular Docking and Molecular Dynamics (MD) Simulation of Human Anti-Complement Factor H (CFH) Antibody Ab42 and CFH Polypeptide. Int J Mol Sci 2019; 20:ijms20102568. [PMID: 31130605 PMCID: PMC6566401 DOI: 10.3390/ijms20102568] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 05/17/2019] [Accepted: 05/22/2019] [Indexed: 02/07/2023] Open
Abstract
An understanding of the interaction between the antibody and its targeted antigen and knowing of the epitopes are critical for the development of monoclonal antibody drugs. Complement factor H (CFH) is implied to play a role in tumor growth and metastasis. An autoantibody to CHF is associated with anti-tumor cell activity. The interaction of a human monoclonal antibody Ab42 that was isolated from a cancer patient with CFH polypeptide (pCFH) antigen was analyzed by molecular docking, molecular dynamics (MD) simulation, free energy calculation, and computational alanine scanning (CAS). Experimental alanine scanning (EAS) was then carried out to verify the results of the theoretical calculation. Our results demonstrated that the Ab42 antibody interacts with pCFH by hydrogen bonds through the Tyr315, Ser100, Gly33, and Tyr53 residues on the complementarity-determining regions (CDRs), respectively, with the amino acid residues of Pro441, Ile442, Asp443, Asn444, Ile447, and Thr448 on the pCFH antigen. In conclusion, this study has explored the mechanism of interaction between Ab42 antibody and its targeted antigen by both theoretical and experimental analysis. Our results have important theoretical significance for the design and development of relevant antibody drugs.
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7
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Pan T, Liu Y, Si C, Bai Y, Qiao S, Zhao L, Xu J, Dong Z, Luo Q, Liu J. Construction of ATP-Switched Allosteric Antioxidant Selenoenzyme. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03274] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Tiezheng Pan
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Yao Liu
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Chengye Si
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Yushi Bai
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Shanpeng Qiao
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Linlu Zhao
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Jiayun Xu
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Zeyuan Dong
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Quan Luo
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Junqiu Liu
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
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8
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Yin Y, Jiao S, Zhang R, Hu X, Shi Z, Huang Z. Construction of a smart microgel glutathione peroxidase mimic based on supramolecular self-assembly. SOFT MATTER 2015; 11:5301-5312. [PMID: 26053236 DOI: 10.1039/c5sm00671f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In an effort to construct smart artificial glutathione peroxidase (GPx) featuring high catalytic activity in an efficient preparation process, an artificial microgel GPx (PPAM-ADA-Te) has been prepared using a supramolecular host-guest self-assembly technique. Herein, 6,6'-telluro-bis(6-deoxy-β-cyclodextrin) (CD-Te-CD) was selected as a tellurium-containing host molecule, which also served as the crosslinker for the scaffold of the supramolecular microgel. And an adamantane-containing block copolymer (PPAM-ADA) was designed and synthesized as a guest building block copolymer. Subsequently, PPAM-ADA-Te was constructed through the self-assembly of CD-Te-CD and PPAM-ADA. The formation of this self-assembled construct was confirmed by dynamic light scattering, NMR, SEM and TEM. Notably, PPAM-ADA-Te not only exhibits a significant temperature responsive catalytic activity, but also features the characteristic saturation kinetics behaviour similar to that of a natural enzyme catalyst. We demonstrate in this paper that both the hydrophobic microenvironment and the crosslinker in this supramolecular microgel network played significant roles in enhancing and altering the temperature responsive catalytic behaviour. The successful construction of PPAM-ADA-Te not only provides a novel method for the preparation of microgel artificial GPx with high catalytic activity but also provides properties suitable for the future development of intelligent antioxidant drugs.
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Affiliation(s)
- Yanzhen Yin
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
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Chen J, Wang J, Zhu W. Binding modes of three inhibitors 8CA, F8A and I4A to A-FABP studied based on molecular dynamics simulation. PLoS One 2014; 9:e99862. [PMID: 24918907 PMCID: PMC4053400 DOI: 10.1371/journal.pone.0099862] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Accepted: 05/16/2014] [Indexed: 12/21/2022] Open
Abstract
Adipocyte fatty-acid binding protein (A-FABP) is an important target of drug designs treating some diseases related to lipid-mediated biology. Molecular dynamics (MD) simulations coupled with solvated interaction energy method (SIE) were carried out to study the binding modes of three inhibitors 8CA, F8A and I4A to A-FABP. The rank of our predicted binding affinities is in accordance with experimental data. The results show that the substitution in the position 5 of N-benzyl and the seven-membered ring of N-benzyl-indole carboxylic acids strengthen the I4A binding, while the substitution in the position 2 of N-benzyl weakens the F8A binding. Computational alanine scanning and dynamics analyses were performed and the results suggest that the polar interactions of the positively charged residue R126 with the three inhibitors provide a significant contribution to inhibitor bindings. This polar interaction induces the disappearance of the correlated motion of the C terminus of A-FABP relative to the N terminus and favors the stability of the binding complex. This study is helpful for the rational design of potent inhibitors within the fields of metabolic disease, inflammation and atherosclerosis.
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Affiliation(s)
- Jianzhong Chen
- School of Science, Shandong Jiaotong University, Jinan, China
- * E-mail: (JC); (WZ)
| | - Jinan Wang
- Discovery and Design Center, CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Weiliang Zhu
- Discovery and Design Center, CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- * E-mail: (JC); (WZ)
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Takei T, Urabe Y, Asahina Y, Hojo H, Nomura T, Dedachi K, Arai K, Iwaoka M. Model Study Using Designed Selenopeptides on the Importance of the Catalytic Triad for the Antioxidative Functions of Glutathione Peroxidase. J Phys Chem B 2013; 118:492-500. [DOI: 10.1021/jp4113975] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Toshiki Takei
- Department
of Chemistry, School of Science, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa 259-1292, Japan
| | - Yoshiko Urabe
- Department
of Chemistry, School of Science, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa 259-1292, Japan
| | - Yuya Asahina
- Department
of Applied Biochemistry, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa 259-1292, Japan
| | - Hironobu Hojo
- Department
of Applied Biochemistry, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa 259-1292, Japan
| | - Takeshi Nomura
- Department
of Chemistry, School of Science, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa 259-1292, Japan
| | - Kenichi Dedachi
- Department
of Chemistry, School of Science, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa 259-1292, Japan
| | - Kenta Arai
- Department
of Chemistry, School of Science, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa 259-1292, Japan
| | - Michio Iwaoka
- Department
of Chemistry, School of Science, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa 259-1292, Japan
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Gao Y, Hou C, Zhou L, Zhang D, Zhang C, Miao L, Wang L, Dong Z, Luo Q, Liu J. A dual enzyme microgel with high antioxidant ability based on engineered seleno-ferritin and artificial superoxide dismutase. Macromol Biosci 2013; 13:808-16. [PMID: 23606510 DOI: 10.1002/mabi.201300019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 02/28/2013] [Indexed: 11/09/2022]
Abstract
An antioxidant microgel with both glutathione peroxidase (GPx) and superoxide dismutase (SOD) activities is reported. Using computational design and genetic engineering methods, the main catalytic components of GPx are fabricated onto the surface of ferritin. The resulting seleno-ferritin (Se-Fn) monomers can self-assemble into nanocomposites that exhibit remarkable GPx activity due to the well organized multi-GPx catalytic centers. Subsequently, a porphyrin derivative is synthesized as an SOD mimic, and is employed to construct a synergistic dual enzyme system by crosslinking Se-Fn nanocomposites into a microgel. Significantly, this dual enzyme microgel is demonstrated to display better antioxidant ability than single GPx or SOD mimics in protecting cells from oxidative damage.
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Affiliation(s)
- Yuzhou Gao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China
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