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Metal-ion promiscuity of microbial enzyme DapE at its second metal-binding site. J Biol Inorg Chem 2021; 26:569-582. [PMID: 34241683 DOI: 10.1007/s00775-021-01875-7] [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: 02/01/2021] [Accepted: 05/28/2021] [Indexed: 10/20/2022]
Abstract
Metalloenzymes are ubiquitous in nature catalyzing a number of crucial biochemical processes in animal and plant kingdoms. For better adaptation to the relative abundance of different metal ions in different cellular fluids, many of these enzymes exhibit metal promiscuity. The microbial enzyme DapE, an essential enzyme for bacterial growth and survival and a potentially safe target for antibiotics, continues to show enzyme activity when the two zinc ions in its active site are replaced by other transition metal ions. The effect of metal-ion substitution at the second metal-binding site of DapE on its substrate affinity and catalytic efficiency is investigated by QM/MM treatment of the enzyme-substrate complex, by modelling the enzyme with Mn(II), Co(II), Ni(II), or Cu(II) ion in place of Zn(II) at its second metal-binding site, while retaining Zn(II) ion at the first metal-binding site. On the basis of substrate binding energy and activation energy barrier for the chemical catalysis, it is found that Zn-Mn DapE shows poor binding affinity as well as inefficient chemical catalysis. Although Zn-Cu and Zn-Ni DapEs show activation energy barriers comparable to that of wild-type Zn-Zn DapE, their weaker substrate affinity renders these mixed-metal enzymes less efficient. On the other hand, Zn-Co DapE is found to outperform the naturally occurring Zn-Zn DapE, both in terms of substrate affinity and chemical catalysis. The observed metal promiscuity may have played an important role in the survival of bacteria even in those cellular media where Zn ions are in limited supply. Metal nonspecificity in the catalysis of DapE enzyme allows bacteria to thrive in different cellular media.
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2
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Elsässer B, Goettig P. Mechanisms of Proteolytic Enzymes and Their Inhibition in QM/MM Studies. Int J Mol Sci 2021; 22:3232. [PMID: 33810118 PMCID: PMC8004986 DOI: 10.3390/ijms22063232] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 12/11/2022] Open
Abstract
Experimental evidence for enzymatic mechanisms is often scarce, and in many cases inadvertently biased by the employed methods. Thus, apparently contradictory model mechanisms can result in decade long discussions about the correct interpretation of data and the true theory behind it. However, often such opposing views turn out to be special cases of a more comprehensive and superior concept. Molecular dynamics (MD) and the more advanced molecular mechanical and quantum mechanical approach (QM/MM) provide a relatively consistent framework to treat enzymatic mechanisms, in particular, the activity of proteolytic enzymes. In line with this, computational chemistry based on experimental structures came up with studies on all major protease classes in recent years; examples of aspartic, metallo-, cysteine, serine, and threonine protease mechanisms are well founded on corresponding standards. In addition, experimental evidence from enzyme kinetics, structural research, and various other methods supports the described calculated mechanisms. One step beyond is the application of this information to the design of new and powerful inhibitors of disease-related enzymes, such as the HIV protease. In this overview, a few examples demonstrate the high potential of the QM/MM approach for sophisticated pharmaceutical compound design and supporting functions in the analysis of biomolecular structures.
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Affiliation(s)
| | - Peter Goettig
- Structural Biology Group, Department of Biosciences, University of Salzburg, Billrothstrasse 11, 5020 Salzburg, Austria;
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3
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Demystifying the catalytic pathway of Mycobacterium tuberculosis isocitrate lyase. Sci Rep 2020; 10:18925. [PMID: 33144641 PMCID: PMC7609661 DOI: 10.1038/s41598-020-75799-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 10/07/2020] [Indexed: 02/04/2023] Open
Abstract
Pulmonary tuberculosis, caused by Mycobacterium tuberculosis, is one of the most persistent diseases leading to death in humans. As one of the key targets during the latent/dormant stage of M. tuberculosis, isocitrate lyase (ICL) has been a subject of interest for new tuberculosis therapeutics. In this work, the cleavage of the isocitrate by M. tuberculosis ICL was studied using quantum mechanics/molecular mechanics method at M06-2X/6-31+G(d,p): AMBER level of theory. The electronic embedding approach was applied to provide a better depiction of electrostatic interactions between MM and QM regions. Two possible pathways (pathway I that involves Asp108 and pathway II that involves Glu182) that could lead to the metabolism of isocitrate was studied in this study. The results suggested that the core residues involved in isocitrate catalytic cleavage mechanism are Asp108, Cys191 and Arg228. A water molecule bonded to Mg2+ acts as the catalytic base for the deprotonation of isocitrate C(2)–OH group, while Cys191 acts as the catalytic acid. Our observation suggests that the shuttle proton from isocitrate hydroxyl group C(2) atom is favourably transferred to Asp108 instead of Glu182 with a lower activation energy of 6.2 kcal/mol. Natural bond analysis also demonstrated that pathway I involving the transfer of proton to Asp108 has a higher intermolecular interaction and charge transfer that were associated with higher stabilization energy. The QM/MM transition state stepwise catalytic mechanism of ICL agrees with the in vitro enzymatic assay whereby Asp108Ala and Cys191Ser ICL mutants lost their isocitrate cleavage activities.
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4
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Sanusi ZK, Lawal MM, Govender T, Baijnath S, Naicker T, Maguire GEM, Honarparvar B, Kruger HG. Concerted hydrolysis mechanism of HIV-1 natural substrate against subtypes B and C-SA PR: insight through molecular dynamics and hybrid QM/MM studies. Phys Chem Chem Phys 2020; 22:2530-2539. [PMID: 31942584 DOI: 10.1039/c9cp05639d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
It is well known that understanding the catalytic mechanism of HIV-1 PR is the rationale on which its inhibitors were developed; therefore, a better understanding of the mechanism of natural substrate hydrolysis is important. Herein, the reaction mechanism of HIV-1 natural substrates with subtypes B and common mutant in South Africa (subtype C-SA) protease were studied through transition state modelling, using a general acid-general base (GA-GB) one-step concerted process. The activation free energies of enzyme-substrate complexes were compared based on their rate of hydrolysis using a two-layered ONIOM (B3LYP/6-31++G(d,p):AMBER) method. We expanded our computational model to obtain a better understanding of the mechanism of hydrolysis as well as how the enzyme recognises or chooses the cleavage site of the scissile bonds. Using this model, a potential substrate-based inhibitor could be developed with better potency. The calculated activation energies of natural substrates in our previous study correlated well with experimental data. A similar trend was observed for the Gag and Gag-Pol natural substrates in the present work for both enzyme complexes except for the PR-RT substrate. Natural bond orbital (NBO) analysis was also applied to determine the extent of charge transfer within the QM part of both enzymes considered and the PR-RT natural substrate. The result of this study shows that the method can be utilized as a dependable computational technique to rationalize lead compounds against specific targets.
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Affiliation(s)
- Zainab K Sanusi
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa.
| | - Monsurat M Lawal
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa.
| | | | - Sooraj Baijnath
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa.
| | - Tricia Naicker
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa.
| | - Glenn E M Maguire
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa. and School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Bahareh Honarparvar
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa.
| | - Hendrik G Kruger
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa.
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5
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Hariono M, Nuwarda RF, Yusuf M, Rollando R, Jenie RI, Al-Najjar B, Julianus J, Putra KC, Nugroho ES, Wisnumurti YK, Dewa SP, Jati BW, Tiara R, Ramadani RD, Qodria L, Wahab HA. Arylamide as Potential Selective Inhibitor for Matrix Metalloproteinase 9 (MMP9): Design, Synthesis, Biological Evaluation, and Molecular Modeling. J Chem Inf Model 2019; 60:349-359. [PMID: 31825614 DOI: 10.1021/acs.jcim.9b00630] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Previous studies have reported that compounds bearing an arylamide linked to a heterocyclic planar ring have successfully inhibited the hemopexin-like domain (PEX9) of matrix metalloproteinase 9 (MMP9). PEX9 has been suggested to be more selectively targeted than MMP9's catalytic domain in a degrading extracellular matrix under some pathologic conditions, especially in cancer. In this study, we aim to synthesize and evaluate 10 arylamide compounds as MMP9 inhibitors through an enzymatic assay as well as a cellular assay. The mechanism of inhibition for the most active compounds was investigated via molecular dynamics simulation (MD). Molecular docking was performed using AutoDock4.0 with PEX9 as the protein model to predict the binding of the designed compounds. The synthesis was carried out by reacting aniline derivatives with 3-bromopropanoyl chloride using pyridine as the catalyst at room temperature. The MMP9 assay was conducted using the FRET-based MMP9 kits protocol and gelatin zymography assay. The cytotoxicity assay was done using the MTT method, and the MD simulation was performed using AMBER16. Assay on MMP9 demonstrated activities of three compounds (2, 7, and 9) with more than 50% inhibition. Further inhibition on MMP9 expressed by 4T1 showed that two compounds (7 and 9) inhibited its gelatinolytic activity more than 50%. The cytotoxicity assay against 4T1 cells results in the inhibition of the cell growth with an EC50 of 125 μM and 132 μM for 7 and 9, respectively. The MD simulation explained a stable interaction of 7 and 9 in PEX9 at 100 ns with a free energy of binding of -8.03 kcal/mol and -6.41 kcal/mol, respectively. Arylamides have potential effects as selective MMP9 inhibitors in inhibiting breast cancer cell progression.
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Affiliation(s)
- Maywan Hariono
- Faculty of Pharmacy , Sanata Dharma University , Depok, Sleman 55282 , Yogyakarta , Indonesia
| | - Rina F Nuwarda
- Faculty of Pharmacy , Padjadjaran University , Jatinangor, Sumedang 45363 , West Java , Indonesia
| | - Muhammad Yusuf
- Chemistry Department, Faculty of Mathematics and Natural Sciences , Padjadjaran University , Jatinangor, Sumedang 45363 , West Java , Indonesia
| | - Rollando Rollando
- Pharmacy Program, Faculty of Science and Technology , Ma Chung University , Malang 65151 , Indonesia
| | - Riris I Jenie
- Cancer Chemoprevention Research Center, Faculty of Pharmacy , Gadjah Mada University , Sekip Utara 55281 , Yogyakarta , Indonesia
| | - Belal Al-Najjar
- Faculty of Pharmacy and Medical Sciences , AlAhliyya Amman University , Amman 19328 , Jordan
| | - Jeffry Julianus
- Faculty of Pharmacy , Sanata Dharma University , Depok, Sleman 55282 , Yogyakarta , Indonesia
| | - Kevin C Putra
- Faculty of Pharmacy , Sanata Dharma University , Depok, Sleman 55282 , Yogyakarta , Indonesia
| | - Ervan S Nugroho
- Faculty of Pharmacy , Sanata Dharma University , Depok, Sleman 55282 , Yogyakarta , Indonesia
| | - Yohanes K Wisnumurti
- Faculty of Pharmacy , Sanata Dharma University , Depok, Sleman 55282 , Yogyakarta , Indonesia
| | - Sangga P Dewa
- Faculty of Pharmacy , Sanata Dharma University , Depok, Sleman 55282 , Yogyakarta , Indonesia
| | - Benedictus W Jati
- Faculty of Pharmacy , Sanata Dharma University , Depok, Sleman 55282 , Yogyakarta , Indonesia
| | - Reynaldo Tiara
- Faculty of Pharmacy , Sanata Dharma University , Depok, Sleman 55282 , Yogyakarta , Indonesia
| | - Ratna D Ramadani
- Cancer Chemoprevention Research Center, Faculty of Pharmacy , Gadjah Mada University , Sekip Utara 55281 , Yogyakarta , Indonesia
| | - Lailatul Qodria
- Cancer Chemoprevention Research Center, Faculty of Pharmacy , Gadjah Mada University , Sekip Utara 55281 , Yogyakarta , Indonesia
| | - Habibah A Wahab
- Pharmaceutical Technology Department, School of Pharmaceutical Sciences and USM-RIKEN Centre for Ageing Science (URICAS) , Universiti Sains Malaysia , 11800 Minden , Pulau Pinang , Malaysia
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6
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Ibeji CU, Lawal MM, Tolufashe GF, Govender T, Naicker T, Maguire GEM, Lamichhane G, Kruger HG, Honarparvar B. The Driving Force for the Acylation of β-Lactam Antibiotics by L,D-Transpeptidase 2: Quantum Mechanics/Molecular Mechanics (QM/MM) Study. Chemphyschem 2019; 20:1126-1134. [PMID: 30969480 DOI: 10.1002/cphc.201900173] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/13/2019] [Indexed: 11/06/2022]
Abstract
β-lactam antibiotics, which are used to treat infectious diseases, are currently the most widely used class of antibiotics. This study focused on the chemical reactivity of five- and six-membered ring systems attached to the β-lactam ring. The ring strain energy (RSE), force constant (FC) of amide (C-N), acylation transition states and second-order perturbation stabilization energies of 13 basic structural units of β-lactam derivatives were computed using the M06-2X and G3/B3LYP multistep method. In the ring strain calculations, an isodesmic reaction scheme was used to obtain the total energies. RSE is relatively greater in the five-(1a-2c) compared to the six-membered ring systems except for 4b, which gives a RSE that is comparable to five-membered ring lactams. These variations were also observed in the calculated inter-atomic amide bond distances (C-N), which is why the six-membered ring lactams C-N bond are more rigid than those with five-membered ring lactams. The calculated ΔG# values from the acylation reaction of the lactams (involving the S-H group of the cysteine active residue from L,D transpeptidase 2) revealed a faster rate of C-N cleavage in the five-membered ring lactams especially in the 1-2 derivatives (17.58 kcal mol-1 ). This observation is also reflected in the calculated amide bond force constant (1.26 mDyn/A) indicating a weaker bond strength, suggesting that electronic factors (electron delocalization) play more of a role on reactivity of the β-lactam ring, than ring strain.
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Affiliation(s)
- Collins U Ibeji
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa.,Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, University of Nigeria, Nsukka, 410001, Enugu State, Nigeria
| | - Monsurat M Lawal
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Gideon F Tolufashe
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Thavendran Govender
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Tricia Naicker
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Glenn E M Maguire
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa.,School of Chemistry and Physics, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Gyanu Lamichhane
- Center for Tuberculosis Research, Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Hendrik G Kruger
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Bahareh Honarparvar
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa
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7
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Pastor M, Zapico JM, Coderch C, Maslyk M, Panchuk R, de Pascual-Teresa B, Ramos A. From a MMP2/CK2 multitarget approach to the identification of potent and selective MMP13 inhibitors. Org Biomol Chem 2019; 17:916-929. [PMID: 30629065 DOI: 10.1039/c8ob02990c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
In this article, we describe our efforts in the search of MMP2/CK2 dual targeting inhibitors. We have followed a rational drug design approach based on our experience in the selective inhibition of these two enzymes. We have successfully obtained highly active MMP2 (10, IC50 = 70 nM; 11, IC50 = 100 nM) and CK2 (16a, IC50 = 500 nM) inhibitors. However, structural fine tuning of these small molecules to simultaneously target both enzymes turned out to be an unattainable goal. Unexpectedly, we were lucky to identify new and selective MMP13 inhibitors (10, IC50 = 3.7 nM and 11, IC50 = 5.6 nM) with a novel TBB-derived scaffold. These compounds constitute an interesting starting point for further optimization.
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Affiliation(s)
- Miryam Pastor
- Departamento de Química y Bioquímica, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28925, Alcorcón, Madrid, Spain.
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8
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Inhibition mechanism of L,D-transpeptidase 5 in presence of the β-lactams using ONIOM method. J Mol Graph Model 2018; 87:204-210. [PMID: 30554066 DOI: 10.1016/j.jmgm.2018.11.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 11/15/2018] [Accepted: 11/21/2018] [Indexed: 02/07/2023]
Abstract
Tuberculosis (TB) is one of the world's deadliest diseases resulting from infection by the bacterium, Mycobacterium tuberculosis (M.tb). The L,D-transpeptidase enzymes catalyze the synthesis of 3 → 3 transpeptide linkages which are predominant in the peptidoglycan of the M.tb cell wall. Carbapenems is class of β-lactams that inactivate L,D-transpeptidases by acylation, although differences in antibiotic side chains modulate drug binding and acylation rates. Herein, we used a two-layered our Own N-layer integrated Molecular Mechanics ONIOM method to investigate the catalytic mechanism of L,D-transpeptidase 5 (LdtMt5) by β-lactam derivatives. LdtMt5 complexes with six β-lactams, ZINC03788344 (1), ZINC02462884 (2), ZINC03791246 (3), ZINC03808351 (4), ZINC03784242 (5) and ZINC02475683 (6) were simulated. The QM region (high-level) comprises the β-lactam, one water molecule and the Cys360 catalytic residue, while the rest of the LdtMt5 residues were treated with AMBER force field. The activation energies (ΔG#) were calculated with B3LYP, M06-2X and ωB97X density functionals with 6-311++G(2d, 2p) basis set. The ΔG# for the acylation of LdtMt5 by the selected β-lactams were obtained as 13.67, 20.90, 22.88, 24.29, 27.86 and 28.26 kcal mol-1respectively. Several of the compounds showed an improved ΔG# when compared to the previously calculated energies for imipenem and meropenem for the acylation step for LdtMt5. This model provides further validation of the catalytic inhibition mechanism of LDTs with atomistic detail.
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9
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Ibeji CU, Tolufashe GF, Ntombela T, Govender T, Maguire GEM, Lamichhane G, Kruger HG, Honarparvar B. The catalytic role of water in the binding site of l,d-transpeptidase 2 within acylation mechanism: A QM/MM (ONIOM) modelling. Tuberculosis (Edinb) 2018; 113:222-230. [PMID: 30514506 DOI: 10.1016/j.tube.2018.10.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 10/11/2018] [Accepted: 10/14/2018] [Indexed: 01/13/2023]
Abstract
Mycobacterium tuberculosis is the causative agent of Tuberculosis. Formation of 3 → 3 crosslinks in the peptidoglycan layer of M. tuberculosis is catalyzed by l,d-transpeptidases. These enzymes can confer resistance against classical β-lactams that inhibit enzymes that generate 4 → 3 peptidoglycan crosslinks. The focus of this study is to investigate the catalytic role of water molecules in the acylation mechanism of the β-lactam ring within two models; 4- and 6-membered ring systems using two-layered our Own N-layer integrated Molecular Mechanics ONIOM (B3LYP/6-311++G(2d,2p): AMBER) model. The obtained thermochemical parameters revealed that the 6-membered ring model best describes the inhibition mechanism of acylation which indicates the role of water in the preference of 6-membered ring reaction pathway. This finding is in accordance with experimental data for the rate-limiting step of cysteine protease with the same class of inhibitor and binding affinity for both inhibitors. As expected, the ΔG# results also reveal that the 6-membered ring reaction pathway is the most favourable. The electrostatic potential (ESP) and the natural bond orbital analysis (NBO) showed stronger interactions in 6-membered ring transition state (TS-6) mechanism involving water in the active site of the enzyme. This study could be helpful in the development of novel antibiotics against l,d-transpeptidase.
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Affiliation(s)
- Collins U Ibeji
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa; Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, University of Nigeria, Nsukka, 410001, Enugu State, Nigeria
| | - Gideon F Tolufashe
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Thandokuhle Ntombela
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Thavendran Govender
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Glenn E M Maguire
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa; School of Chemistry and Physics, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Gyanu Lamichhane
- Center for Tuberculosis Research, Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Hendrik G Kruger
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa.
| | - Bahareh Honarparvar
- Catalysis and Peptide Research Unit, School of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa.
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10
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Gao M, Zhang H, Trivedi A, Mahasenan KV, Schroeder VA, Wolter WR, Suckow MA, Mobashery S, Noble-Haeusslein LJ, Chang M. Selective Inhibition of MMP-2 Does Not Alter Neurological Recovery after Spinal Cord Injury. ACS Chem Neurosci 2016; 7:1482-1487. [PMID: 27551907 DOI: 10.1021/acschemneuro.6b00217] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Matrix metalloproteinase (MMP)-2 knockout (KO) mice show impaired neurological recovery after spinal cord injury (SCI), suggesting that this proteinase is critical to recovery processes. However, this finding in the KO has been confounded by a compensatory increase in MMP-9. We synthesized the thiirane mechanism-based inhibitor ND-378 and document that it is a potent (nanomolar) and selective slow-binding inhibitor of MMP-2 that does not inhibit the closely related MMP-9 and MMP-14. ND-378 crosses the blood-spinal cord barrier, achieving therapeutic concentrations in the injured spinal cord. Spinal-cord injured mice treated with ND-378 showed no change in long-term neurological outcomes, suggesting that MMP-2 is not a key determinant of locomotor recovery.
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Affiliation(s)
- Ming Gao
- Department
of Chemistry and Biochemistry and ‡Freimann Life Sciences Center and
Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Neurological
Surgery and Physical Therapy and ∥Rehabilitation
Science, University of California, San Francisco, San Francisco, California 94143, United States
| | - Haoqian Zhang
- Department
of Chemistry and Biochemistry and ‡Freimann Life Sciences Center and
Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Neurological
Surgery and Physical Therapy and ∥Rehabilitation
Science, University of California, San Francisco, San Francisco, California 94143, United States
| | - Alpa Trivedi
- Department
of Chemistry and Biochemistry and ‡Freimann Life Sciences Center and
Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Neurological
Surgery and Physical Therapy and ∥Rehabilitation
Science, University of California, San Francisco, San Francisco, California 94143, United States
| | - Kiran V. Mahasenan
- Department
of Chemistry and Biochemistry and ‡Freimann Life Sciences Center and
Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Neurological
Surgery and Physical Therapy and ∥Rehabilitation
Science, University of California, San Francisco, San Francisco, California 94143, United States
| | - Valerie A. Schroeder
- Department
of Chemistry and Biochemistry and ‡Freimann Life Sciences Center and
Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Neurological
Surgery and Physical Therapy and ∥Rehabilitation
Science, University of California, San Francisco, San Francisco, California 94143, United States
| | - William R. Wolter
- Department
of Chemistry and Biochemistry and ‡Freimann Life Sciences Center and
Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Neurological
Surgery and Physical Therapy and ∥Rehabilitation
Science, University of California, San Francisco, San Francisco, California 94143, United States
| | - Mark A. Suckow
- Department
of Chemistry and Biochemistry and ‡Freimann Life Sciences Center and
Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Neurological
Surgery and Physical Therapy and ∥Rehabilitation
Science, University of California, San Francisco, San Francisco, California 94143, United States
| | - Shahriar Mobashery
- Department
of Chemistry and Biochemistry and ‡Freimann Life Sciences Center and
Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Neurological
Surgery and Physical Therapy and ∥Rehabilitation
Science, University of California, San Francisco, San Francisco, California 94143, United States
| | - Linda J. Noble-Haeusslein
- Department
of Chemistry and Biochemistry and ‡Freimann Life Sciences Center and
Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Neurological
Surgery and Physical Therapy and ∥Rehabilitation
Science, University of California, San Francisco, San Francisco, California 94143, United States
| | - Mayland Chang
- Department
of Chemistry and Biochemistry and ‡Freimann Life Sciences Center and
Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Neurological
Surgery and Physical Therapy and ∥Rehabilitation
Science, University of California, San Francisco, San Francisco, California 94143, United States
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11
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Dutta D, Mishra S. Loss of Catalytic Activity in the E134D, H67A, and H349A Mutants of DapE: Mechanistic Analysis with QM/MM Investigation. J Phys Chem B 2016; 120:11654-11664. [DOI: 10.1021/acs.jpcb.6b07446] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Debodyuti Dutta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Sabyashachi Mishra
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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The Prodrug Approach: A Successful Tool for Improving Drug Solubility. Molecules 2015; 21:42. [PMID: 26729077 PMCID: PMC6273601 DOI: 10.3390/molecules21010042] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 12/10/2015] [Accepted: 12/15/2015] [Indexed: 12/04/2022] Open
Abstract
Prodrug design is a widely known molecular modification strategy that aims to optimize the physicochemical and pharmacological properties of drugs to improve their solubility and pharmacokinetic features and decrease their toxicity. A lack of solubility is one of the main obstacles to drug development. This review aims to describe recent advances in the improvement of solubility via the prodrug approach. The main chemical carriers and examples of successful strategies will be discussed, highlighting the advances of this field in the last ten years.
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Chung LW, Sameera WMC, Ramozzi R, Page AJ, Hatanaka M, Petrova GP, Harris TV, Li X, Ke Z, Liu F, Li HB, Ding L, Morokuma K. The ONIOM Method and Its Applications. Chem Rev 2015; 115:5678-796. [PMID: 25853797 DOI: 10.1021/cr5004419] [Citation(s) in RCA: 734] [Impact Index Per Article: 81.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Lung Wa Chung
- †Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - W M C Sameera
- ‡Fukui Institute for Fundamental Chemistry, Kyoto University, 34-4 Takano Nishihiraki-cho, Sakyo, Kyoto 606-8103, Japan
| | - Romain Ramozzi
- ‡Fukui Institute for Fundamental Chemistry, Kyoto University, 34-4 Takano Nishihiraki-cho, Sakyo, Kyoto 606-8103, Japan
| | - Alister J Page
- §Newcastle Institute for Energy and Resources, The University of Newcastle, Callaghan 2308, Australia
| | - Miho Hatanaka
- ‡Fukui Institute for Fundamental Chemistry, Kyoto University, 34-4 Takano Nishihiraki-cho, Sakyo, Kyoto 606-8103, Japan
| | - Galina P Petrova
- ∥Faculty of Chemistry and Pharmacy, University of Sofia, Bulgaria Boulevard James Bourchier 1, 1164 Sofia, Bulgaria
| | - Travis V Harris
- ‡Fukui Institute for Fundamental Chemistry, Kyoto University, 34-4 Takano Nishihiraki-cho, Sakyo, Kyoto 606-8103, Japan.,⊥Department of Chemistry, State University of New York at Oswego, Oswego, New York 13126, United States
| | - Xin Li
- #State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zhuofeng Ke
- ∇School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Fengyi Liu
- ○Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Hai-Bei Li
- ■School of Ocean, Shandong University, Weihai 264209, China
| | - Lina Ding
- ▲School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Keiji Morokuma
- ‡Fukui Institute for Fundamental Chemistry, Kyoto University, 34-4 Takano Nishihiraki-cho, Sakyo, Kyoto 606-8103, Japan
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Khrenova M, Savitsky AP, Topol IA, Nemukhin AV. Exploration of the zinc finger motif in controlling activity of matrix metalloproteinases. J Phys Chem B 2014; 118:13505-12. [PMID: 25375834 PMCID: PMC4254000 DOI: 10.1021/jp5088702] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 11/05/2014] [Indexed: 12/19/2022]
Abstract
Discovering ways to control the activity of matrix metalloproteinases (MMPs), zinc-dependent enzymes capable of degrading extracellular matrix proteins, is an important field of cancer research. We report here a novel strategy for assembling MMP inhibitors on the basis of oligopeptide ligands by exploring the pattern known as the zinc finger motif. Advanced molecular modeling tools were used to characterize the structural binding motifs of experimentally tested MMP inhibitors, as well as those of newly proposed peptidomimetics, in their zinc-containing active sites. The results of simulations based on the quantum mechanics/molecular mechanics (QM/MM) approach and Car-Parrinello molecular dynamics with QM/MM potentials demonstrate that, upon binding of Regasepin1, a known MMP-9 inhibitor, the Zn(2+)(His3) structural element is rearranged to the Zn(2+)(Cys2His2) zinc finger motif, in which two Cys residues are borrowed from the ligand. Following consideration of the crystal structure of MMP-2 with its inhibitor, the oligopeptide APP-IP, we proposed a new peptidomimetic with two replacements in the substrate, Tyr3Cys and Asp6Cys. Simulations show that this peptide variant blocks an enzyme active site by the Zn(2+)(Cys2His2) zinc finger construct. Similarly, a natural substrate of MMP-2, Ace-Gln-Gly ∼ Ile-Ala-Gly-Nme, can be converted to an inhibiting compound by two replacements, Ile by Cys and Gly by the d isomer of Cys, favoring formation of the zinc finger motif.
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Affiliation(s)
- Maria
G. Khrenova
- A.N. Bach Institute
of Biochemistry of the Russian Academy of Science, Leninsky Prospect, 33, Moscow 119071, Russian Federation
- Chemistry
Department, M.V. Lomonosov Moscow State
University, Leninskie
Gory 1/3, Moscow, 119991, Russian Federation
| | - Alexander P. Savitsky
- A.N. Bach Institute
of Biochemistry of the Russian Academy of Science, Leninsky Prospect, 33, Moscow 119071, Russian Federation
| | - Igor A. Topol
- Advanced
Biomedical Computing Center, Information Systems Program, Leidos Biomedical
Research Inc., Frederick National Laboratory
for Cancer Research, Frederick, Maryland 21702, United States
| | - Alexander V. Nemukhin
- Chemistry
Department, M.V. Lomonosov Moscow State
University, Leninskie
Gory 1/3, Moscow, 119991, Russian Federation
- N.M.
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygina 4, Moscow, 119334, Russian Federation
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Khrenova MG, Nemukhin AV, Savitsky AP. Computational characterization of ketone-ketal transformations at the active site of matrix metalloproteinases. J Phys Chem B 2014; 118:4345-50. [PMID: 24684684 DOI: 10.1021/jp501674b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We modeled the first steps of hydrolysis reactions of a natural oligopeptide substrate of matrix metalloproteinase MMP-2 as well as of a substrate analogue. In the latter, the scissile amide group is substituted by a ketomethylene group which can be transformed to the ketal group upon binding of this compound to the enzyme active site. According to our quantum mechanical-molecular mechanical (QM/MM) calculations, the reaction of the ketone-ketal transformation proceeds with a low energy barrier (3.4 kcal/mol) and a high equilibrium constant (10(4)). The reaction product with the ketal group formed directly at the active site of the enzyme works as an inhibitor that chelates the zinc ion. On the other hand, the oligopeptide mimetic retains molecular groups responsible for binding of this compound to the enzyme active site. This example illustrates a strategy to design MMP inhibitors in situ by using data on binding specificity of substrates to a particular type of MMP and details of the reaction mechanism.
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Affiliation(s)
- Maria G Khrenova
- A.N. Bach Institute of Biochemistry, Russian Academy of Sciences , Leninsky prospect, 33, Moscow 119071, Russian Federation
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Fabre B, Filipiak K, Coderch C, Zapico JM, Carbajo RJ, Schott AK, Pineda-Lucena A, de Pascual-Teresa B, Ramos A. New clicked thiirane derivatives as gelatinase inhibitors: the relevance of the P1′ segment. RSC Adv 2014. [DOI: 10.1039/c3ra46402d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Dutta D, Mishra S. The structural and energetic aspects of substrate binding and the mechanism of action of the DapE-encoded N-succinyl-l,l-diaminopimelic acid desuccinylase (DapE) investigated using a hybrid QM/MM method. Phys Chem Chem Phys 2014; 16:26348-58. [DOI: 10.1039/c4cp03986f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Substrate binding and the mechanism of action of the DapE-encodedN-succinyl-l,l-diaminopimelic acid desuccinylase (DapE).
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Affiliation(s)
- Debodyuti Dutta
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur, India
| | - Sabyashachi Mishra
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur, India
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Tao P, Hodošček M, Larkin JD, Shao Y, Brooks BR. Comparison of Three Chain-of-States Methods: Nudged Elastic Band and Replica Path with Restraints or Constraints. J Chem Theory Comput 2012; 8:5035-5051. [PMID: 23526888 PMCID: PMC3604905 DOI: 10.1021/ct3006248] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Chain-of-state methods are becoming important tools in studying the chemical reaction mechanisms, especially for biomacromolecules. In this article, three chain-of-state methods, nudged elastic band (NEB) method and the replica path method with restraints or constraints, were tested and compared using three model systems with various sizes and at different levels of theory: alanine dipeptide isomerization, β-alanine intramolecular condensation, and the matrix metalloproteinase 2 inhibition mechanism. The levels of theory used to describe the three model systems include molecular mechanics (MM), quantum mechanics (QM), and combined quantum mechanics and molecular mechanics (QM/MM). All three methods could correctly determine a reaction path with reasonable estimation of reaction barriers in most cases. The RMSD measurement with additional weighting schemes provides practically infinite choices of reaction coordinates to describe the reaction progress. These findings demonstrate that the chain-of-state methods are powerful tools when being used carefully to generate a plausible reaction mechanism with full pathway for complex systems at an affordable computational cost.
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Affiliation(s)
- Peng Tao
- Laboratory of Computational Biology, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Milan Hodošček
- Center for Molecular Modeling, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
| | - Joseph D. Larkin
- Laboratory of Computational Biology, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Yihan Shao
- Laboratory of Computational Biology, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
- Q-Chem Inc., 5001 Baum Boulevard, Suite 690, Pittsburgh, Pennsylvania 15213, United States
| | - Bernard R. Brooks
- Laboratory of Computational Biology, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
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Li CQ, Yang HQ, Xu J, Hu CW. Hydroxylation mechanism of methane and its derivatives over designed methane monooxygenase model with peroxo dizinc core. Org Biomol Chem 2012; 10:3924-31. [DOI: 10.1039/c2ob25163a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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