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Salazar Marcano DE, Savić ND, Declerck K, Abdelhameed SAM, Parac-Vogt TN. Reactivity of metal-oxo clusters towards biomolecules: from discrete polyoxometalates to metal-organic frameworks. Chem Soc Rev 2024; 53:84-136. [PMID: 38015569 DOI: 10.1039/d3cs00195d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Metal-oxo clusters hold great potential in several fields such as catalysis, materials science, energy storage, medicine, and biotechnology. These nanoclusters of transition metals with oxygen-based ligands have also shown promising reactivity towards several classes of biomolecules, including proteins, nucleic acids, nucleotides, sugars, and lipids. This reactivity can be leveraged to address some of the most pressing challenges we face today, from fighting various diseases, such as cancer and viral infections, to the development of sustainable and environmentally friendly energy sources. For instance, metal-oxo clusters and related materials have been shown to be effective catalysts for biomass conversion into renewable fuels and platform chemicals. Furthermore, their reactivity towards biomolecules has also attracted interest in the development of inorganic drugs and bioanalytical tools. Additionally, the structural versatility of metal-oxo clusters allows for the efficiency and selectivity of the biomolecular reactions they promote to be readily tuned, thereby providing a pathway towards reaction optimization. The properties of the catalyst can also be improved through incorporation into solid supports or by linking metal-oxo clusters together to form Metal-Organic Frameworks (MOFs), which have been demonstrated to be powerful heterogeneous catalysts. Therefore, this review aims to provide a comprehensive and critical analysis of the state of the art on biomolecular transformations promoted by metal-oxo clusters and their applications, with a particular focus on structure-activity relationships.
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Affiliation(s)
| | - Nada D Savić
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
| | - Kilian Declerck
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
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2
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Li B, Xu X, Lv Y, Wu Z, He L, Song YF. Polyoxometalates as Potential Artificial Enzymes toward Biological Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305539. [PMID: 37699754 DOI: 10.1002/smll.202305539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/09/2023] [Indexed: 09/14/2023]
Abstract
Artificial enzymes, as alternatives to natural enzymes, have attracted enormous attention in the fields of catalysis, biosensing, diagnostics, and therapeutics because of their high stability and low cost. Polyoxometalates (POMs), a class of inorganic metal oxides, have recently shown great potential in mimicking enzyme activity due to their well-defined structure, tunable composition, high catalytic efficiency, and easy storage properties. This review focuses on the recent advances in POM-based artificial enzymes. Different types of POMs and their derivatives-based mimetic enzyme functions are covered, as well as the corresponding catalytic mechanisms (where available). An overview of the broad applications of representative POM-based artificial enzymes from biosensing to theragnostic is provided. Insight into the current challenges and the future directions for POMs-based artificial enzymes is discussed.
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Affiliation(s)
- Bole Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xiaotong Xu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yanfei Lv
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Zhaohui Wu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Lei He
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yu-Fei Song
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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3
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Maksimchuk NV, Marikovskaya SM, Larionov KP, Antonov AA, Shashkov MV, Yanshole VV, Evtushok VY, Kholdeeva OA. Tuning Reactivity of Zr-Substituted Keggin Phosphotungstate in Alkene Epoxidation through Balancing H 2O 2 Activation Pathways: Unusual Effect of Base. Inorg Chem 2023; 62:18955-18969. [PMID: 37927081 DOI: 10.1021/acs.inorgchem.3c02578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
The Zr-monosubstituted Keggin-type dimeric phosphotungstate (Bu4N)8[{PW11O39Zr(μ-OH)(H2O)}2] (1) efficiently catalyzes epoxidation of C═C bonds in various kinds of alkenes, including terminal ones, with aqueous H2O2 as oxidant. Less sterically hindered double bonds are preferably epoxidized despite their lower nucleophilicity. Basic additives (Bu4NOH) in the amount of 1 equiv per dimer 1 suppress H2O2 unproductive decomposition, increase substrate conversion, improve yield of heterolytic oxidation products and oxidant utilization efficiency, and also affect regioselectivity of epoxidation, enhancing oxygen transfer to sterically hindered electron-rich C═C bonds. Acid additives produce a reverse effect on the substrate conversion and H2O2 efficiency. The reaction mechanism was explored using a range of test substrates, kinetic, and spectroscopic tools. The opposite effects of acid and base additives on alkene epoxidation and H2O2 degradation have been rationalized in terms of their impact on hydrolysis of 1 to form monomeric species, [PW11O39Zr(OH)(H2O)x]4- (1-M, x = 1 or 2), which favors H2O2 homolytic decomposition. The interaction of 1 with H2O2 has been investigated by HR-ESI-MS, ATR-FT-IR, and 31P NMR spectroscopic techniques. The combination of spectroscopic studies and kinetic modeling implicated the existence of two types of dimeric peroxo complexes, [Zr2(μ-η2:η2-O2){PW11O39}2(H2O)x]]8- and [{Zr(μ-η2-O2)}2(PW11O39)2(H2O)y]10-, along with monomeric Zr (hydro)peroxo species that begin to dominate at a high excess of H2O2. Both dimeric μ-η2-peroxo intermediates are inert toward alkenes under stoichiometric conditions. V-shape Hammett plots obtained for epoxidation of p-substituted styrenes suggested a biphilic nature of the active oxidizing species, which are monomeric Zr-hydroperoxo and peroxo species. Small basic additives increase the electrophilicity of the catalyst and decrease its nucleophilicity. HR-ESI-MS has identified a dimeric, most likely, bridging hydroperoxo species [{PW11O39Zr}2(μ-O)(μ-OOH)]9-, which may account for the improved epoxidation selectivity and regioselectivity toward sterically hindered C═C bonds.
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Affiliation(s)
| | - Sofia M Marikovskaya
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
- Novosibirsk State University, Pirogova str. 2, Novosibirsk 630090, Russia
| | - Kirill P Larionov
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
| | - Artem A Antonov
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
- Novosibirsk State University, Pirogova str. 2, Novosibirsk 630090, Russia
| | - Mikhail V Shashkov
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
| | - Vadim V Yanshole
- International Tomography Center SB RAS, Novosibirsk 630090, Russia
| | - Vasilii Yu Evtushok
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
| | - Oxana A Kholdeeva
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
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Yue Z, Wang R, Li J, Tang M, Yang L, Gu H, Wang X, Sun T. Recent Advances in Polyoxometalate Based Nanoplatforms Mediated Reactive Oxygen Species Cancer Therapy. Chem Asian J 2023; 18:e202300749. [PMID: 37755123 DOI: 10.1002/asia.202300749] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/25/2023] [Accepted: 09/25/2023] [Indexed: 09/28/2023]
Abstract
The potential of reactive oxygen species (ROS) cancer therapy in tumor treatment has been greatly enhanced by the introduction of catalytically superior polyoxometalate (POM)-based nanoplatforms, mainly composed of atomic clusters consisting of pre-transition metals and oxygen. These nanoplatforms have unique advantages, such as Fenton activity at neutral pH, induction of cellular ferroptosis instead of just apoptosis, and sensitivity to external field stimulation. However, there are also inevitable challenges such as neutralization of ROS by the antioxidant system of the tumor microenvironment (TME), hypoxia, and limited hydrogen peroxide concentrations. This review article aims to provide an overview of recent research advancements in POM-based nanoplatforms for ROS therapy from the perspective of chemical reactions and biological processes, addressing endogenous and exogenous factors that affect the antitumor efficacy. Endogenous factors include the mechanism of ROS generation by POM, the impact of pH and antioxidant systems on POM, and the various manners of tumor cell death. Exogenous stimuli mainly include light, heat, X-rays, and electricity. The article analyzes the specific mechanisms of action of each influencing factor in the first two sections, concluding with the limitations of the present study and some possible directions for future research.
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Affiliation(s)
- Zhengya Yue
- College of Chemistry, Chemical Engineering, and Resource Utilization, Northeast Forestry University, Harbin, 150040, PR China
| | - Runjie Wang
- College of Chemistry, Chemical Engineering, and Resource Utilization, Northeast Forestry University, Harbin, 150040, PR China
| | - Jialun Li
- College of Chemistry, Chemical Engineering, and Resource Utilization, Northeast Forestry University, Harbin, 150040, PR China
| | - Minglu Tang
- College of Chemistry, Chemical Engineering, and Resource Utilization, Northeast Forestry University, Harbin, 150040, PR China
| | - Li Yang
- College of Chemistry, Chemical Engineering, and Resource Utilization, Northeast Forestry University, Harbin, 150040, PR China
| | - Hao Gu
- College of Chemistry, Chemical Engineering, and Resource Utilization, Northeast Forestry University, Harbin, 150040, PR China
| | - Xijin Wang
- The First Psychiatric Hospital of Harbin, Hongwei Road, Harbin, 150040, PR China
| | - Tiedong Sun
- College of Chemistry, Chemical Engineering, and Resource Utilization, Northeast Forestry University, Harbin, 150040, PR China
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Lin S, Li J, Zhou F, Tan BK, Zheng B, Hu J. K 6[P 2Mo 18O 62] as DNase-Mimetic Artificial Nucleases to Promote Extracellular Deoxyribonucleic Acid Degradation in Bacterial Biofilms. ACS OMEGA 2023; 8:33966-33974. [PMID: 37744825 PMCID: PMC10515355 DOI: 10.1021/acsomega.3c04790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 08/25/2023] [Indexed: 09/26/2023]
Abstract
In the current study, the DNase-like activity of the Dawson-type polyoxometalate K6[P2Mo18O62] was explored. The obtained findings demonstrated that K6[P2Mo18O62] could effectively cleave phosphoester bonds in the DNA model substrate (4-nitrophenyl phosphate) and result in the degradation of plasmid DNA. Moreover, the application potential of this Dawson-type polyoxometalate as a DNase-mimetic artificial enzyme to degrade extracellular DNA (eDNA) in Escherichia coli (E. coli) bacterial biofilm was explored. The results demonstrated that K6[P2Mo18O62] exhibited high cleavage ability toward eDNA secreted by E. coli and thus eradicated the bacterial biofilm. In conclusion, Dawson-type polyoxometalate K6[P2Mo18O62] possessed desirable DNase-like activity, which could serve as a bacterial biofilm eradication agent by cleaving and degrading eDNA molecules.
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Affiliation(s)
- Shaoling Lin
- College
of Food Science, Fujian Agriculture and
Forestry University, Fuzhou 350002, China
| | - Jing Li
- College
of Food Science, Fujian Agriculture and
Forestry University, Fuzhou 350002, China
| | - Feng Zhou
- College
of Food Science, Fujian Agriculture and
Forestry University, Fuzhou 350002, China
| | - Bee K. Tan
- College
of Life Sciences, University of Leicester, Leicester LE1 7RH, U.K.
| | - Baodong Zheng
- College
of Food Science, Fujian Agriculture and
Forestry University, Fuzhou 350002, China
| | - Jiamiao Hu
- College
of Food Science, Fujian Agriculture and
Forestry University, Fuzhou 350002, China
- College
of Life Sciences, University of Leicester, Leicester LE1 7RH, U.K.
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6
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Lin S, Lin Z, Zhou F, Wang D, Zheng B, Hu J. Polyoxometalate K 6[P 2Mo 18O 62] Inactivates Escherichia coli O157:H7 by Inducing recA Expression and Apoptosis-like Bacterial Death. Int J Mol Sci 2023; 24:11469. [PMID: 37511226 PMCID: PMC10380553 DOI: 10.3390/ijms241411469] [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: 06/22/2023] [Revised: 07/08/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
Polyoxometalates have emerged as promising bactericidal agents. In the current study, the bactericidal activity of polyoxometalate K6[P2Mo18O62] against Escherichia coli (E. coli) O157:H7 and its possible underlying mechanisms were explored. The obtained results demonstrated that K6[P2Mo18O62] could effectively kill E. coli O157:H7 at millimolar levels. Moreover, K6[P2Mo18O62] treatment also induced significant increases in recA protein expression and further triggered characteristic apoptosis-like bacterial death events such as DNA fragmentation and phosphatidylserine exposure. In conclusion, polyoxometalate K6[P2Mo18O62] possesses a desirable antibacterial activity, and induction of bacterial apoptosis-like death might be involved in its underlying bactericidal mechanisms.
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Affiliation(s)
- Shaoling Lin
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zhongjing Lin
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Feng Zhou
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Dehua Wang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Baodong Zheng
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jiamiao Hu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- College of Life Sciences, University of Leicester, Leicester LE1 7RH, UK
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7
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Gumerova NI, Rompel A. Speciation atlas of polyoxometalates in aqueous solutions. SCIENCE ADVANCES 2023; 9:eadi0814. [PMID: 37343109 DOI: 10.1126/sciadv.adi0814] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 05/15/2023] [Indexed: 06/23/2023]
Abstract
Speciation is the key parameter in solution chemistry that describes the composition, concentration, and oxidation state of each chemical form of an element present in a sample. The speciation study of complex polyatomic ions has remained challenging because of the large number of factors affecting stability and the limited number of direct methods. To address these challenges, we developed the speciation atlas of 10 polyoxometalates commonly used in catalytic and biological applications in aqueous solutions, where the speciation atlas provides both a species distribution database and a predictive model for other polyoxometalates to be used. Compiled for six different polyoxometalate archetypes with three types of addenda ions based on 1309 nuclear magnetic resonance spectra under 54 different conditions, the atlas has revealed a previously unknown behavior of polyoxometalates that may account for their potency as biological agents and catalysts. The atlas is intended to promote the interdisciplinary use of metal oxides in various scientific fields.
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Affiliation(s)
- Nadiia I Gumerova
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Josef-Holaubek-Platz 2, 1090 Wien, Austria
| | - Annette Rompel
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Josef-Holaubek-Platz 2, 1090 Wien, Austria
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8
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Salazar Marcano D, Savić ND, Abdelhameed SAM, de Azambuja F, Parac-Vogt TN. Exploring the Reactivity of Polyoxometalates toward Proteins: From Interactions to Mechanistic Insights. JACS AU 2023; 3:978-990. [PMID: 37124292 PMCID: PMC10131212 DOI: 10.1021/jacsau.3c00011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 05/03/2023]
Abstract
The latest advances in the study of the reactivity of metal-oxo clusters toward proteins showcase how fundamental insights obtained so far open new opportunities in biotechnology and medicine. In this Perspective, these studies are discussed through the lens of the reactivity of a family of soluble anionic metal-oxo nanoclusters known as polyoxometalates (POMs). POMs act as catalysts in a wide range of reactions with several different types of biomolecules and have promising therapeutic applications due to their antiviral, antibacterial, and antitumor activities. However, the lack of a detailed understanding of the mechanisms behind biochemically relevant reactions-particularly with complex biological systems such as proteins-still hinders further developments. Hence, in this Perspective, special attention is given to reactions of POMs with peptides and proteins showcasing a molecular-level understanding of the reaction mechanism. In doing so, we aim to highlight both existing limitations and promising directions of future research on the reactivity of metal-oxo clusters toward proteins and beyond.
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9
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Zhou C, Wang Q, Jiang J, Gao L. Nanozybiotics: Nanozyme-Based Antibacterials against Bacterial Resistance. Antibiotics (Basel) 2022; 11:antibiotics11030390. [PMID: 35326853 PMCID: PMC8944833 DOI: 10.3390/antibiotics11030390] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/04/2022] [Accepted: 03/07/2022] [Indexed: 01/27/2023] Open
Abstract
Infectious diseases caused by bacteria represent a global threat to human health. However, due to the abuse of antibiotics, drug-resistant bacteria have evolved rapidly and led to the failure of antibiotics treatment. Alternative antimicrobial strategies different to traditional antibiotics are urgently needed. Enzyme-based antibacterials (Enzybiotics) have gradually attracted interest owing to their advantages including high specificity, rapid mode-of-action, no resistance development, etc. However, due to their low stability, potential immunogenicity, and high cost of natural enzymes, enzybiotics have limitations in practical antibacterial therapy. In recent years, many nanomaterials with enzyme-like activities (Nanozymes) have been discovered as a new generation of artificial enzymes and perform catalytic antibacterial effects against bacterial resistance. To highlight the progress in this field of nanozyme-based antibacterials (Nanozybiotics), this review discussed the antibacterial mechanism of action of nanozybiotics with a comparison with enzybiotics. We propose that nanozybiotics may bear promising applications in antibacterial therapy, due to their high stability, rapid bacterial killing, biofilm elimination, and low cost.
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Affiliation(s)
- Caiyu Zhou
- CAS Engineering Laboratory for Nanozyme, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; (C.Z.); (Q.W.); (J.J.)
- College of Life Sciences, Graduate School of University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qian Wang
- CAS Engineering Laboratory for Nanozyme, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; (C.Z.); (Q.W.); (J.J.)
- College of Life Sciences, Graduate School of University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Jiang
- CAS Engineering Laboratory for Nanozyme, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; (C.Z.); (Q.W.); (J.J.)
| | - Lizeng Gao
- CAS Engineering Laboratory for Nanozyme, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; (C.Z.); (Q.W.); (J.J.)
- Nanozyme Medical Center, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
- Correspondence:
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10
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Chen K, Liu Y, Li M, Liu L, Yu Q, Wu L. Amelioration of enteric dysbiosis by polyoxotungstates in mice gut. J Inorg Biochem 2021; 226:111654. [PMID: 34740036 DOI: 10.1016/j.jinorgbio.2021.111654] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 10/11/2021] [Accepted: 10/23/2021] [Indexed: 12/15/2022]
Abstract
Here we show that Preyssler-type polyoxotungstates (Preyssler-type POTs, [NaP5W30O110]-14) complexed with peptides can prevent the dysbiotic expansion of anaerobic bacteria of the Enterobacteriaceae family. In a dextran sulfate sodium (DSS)-induced colitis model, symptom remission of C57BL/6 J mice with colitis is achieved by orally treated with POT complexes. Ten days of daily administration of POT complexes reduces 5% body weight loss and the mRNA levels of proinflammatory markers (77% reduction for Il6, 73% reduction for Tnf, 91% reduction for Cxcl1) in the caecum and proximal colon. Bacterial population analysis reveals that these Enterobacteriaceae population in the caecal content decline by one order of magnitude after administration of POT complexes. POT complexes exert anti-inflammatory effects indirectly on the host immune system by inhibition of malignant expansion of anaerobic Enterobacteriaceae during gut inflammation. Furthermore, POTs show negligible effect on bacterial growth in vitro, healthy mice and their microbiota composition under homeostatic conditions. Rationally designed POT complexes will provide distinctive approach to improve enteric bacteria dysbiosis-associated gut inflammation by balancing bacterial communities.
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Affiliation(s)
- Kun Chen
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, China.
| | - Yuan Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Mu Li
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Lu Liu
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Qiang Yu
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Long Wu
- Key Laboratory of Food Nutrition and Functional Food of Hainan Province, College of Food Science and Engineering, Hainan University, Haikou, Hainan, 570228, China.
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Zhang Y, de Azambuja F, Parac-Vogt TN. The forgotten chemistry of group(IV) metals: A survey on the synthesis, structure, and properties of discrete Zr(IV), Hf(IV), and Ti(IV) oxo clusters. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213886] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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12
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Martins FF, Sánchez‐González Á, Lanuza J, Miras HN, Lopez X, Bandeira NA, Gil A. Probing the Catalytically Active Species in POM‐Catalysed DNA‐Model Hydrolysis**. Chemistry 2021; 27:8977-8984. [DOI: 10.1002/chem.202004989] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Frederico F. Martins
- BioISI – Biosystems and Integrative Sciences Institute Departamento de Química e Bioquímica Faculdade de Ciências Universidade de Lisboa 8.5.53 C8 bdg, Campo Grande 1749-016 Lisboa Portugal
| | - Ángel Sánchez‐González
- BioISI – Biosystems and Integrative Sciences Institute Departamento de Química e Bioquímica Faculdade de Ciências Universidade de Lisboa 8.5.53 C8 bdg, Campo Grande 1749-016 Lisboa Portugal
| | - Jose Lanuza
- Polimero eta Material Aurreratuak: Fisika Kimika eta Teknologia Saila, Kimika Fakultatea Euskal Herriko Unibertsitatea (UPV/EHU) Paseo Manuel de Lardizabal 3 20018 Donostia-San Sebastián Spain
- Donostia International Physics Center (DIPC) Paseo Manuel de Lardizabal 4 20018 Donostia-San Sebastián Spain
| | - Haralampos N. Miras
- School of Chemistry University of Glasgow Joseph Black Building Glasgow G12 8QQ UK
| | - Xabier Lopez
- Polimero eta Material Aurreratuak: Fisika Kimika eta Teknologia Saila, Kimika Fakultatea Euskal Herriko Unibertsitatea (UPV/EHU) Paseo Manuel de Lardizabal 3 20018 Donostia-San Sebastián Spain
- Donostia International Physics Center (DIPC) Paseo Manuel de Lardizabal 4 20018 Donostia-San Sebastián Spain
| | - Nuno A. Bandeira
- BioISI – Biosystems and Integrative Sciences Institute Departamento de Química e Bioquímica Faculdade de Ciências Universidade de Lisboa 8.5.53 C8 bdg, Campo Grande 1749-016 Lisboa Portugal
| | - Adrià Gil
- BioISI – Biosystems and Integrative Sciences Institute Departamento de Química e Bioquímica Faculdade de Ciências Universidade de Lisboa 8.5.53 C8 bdg, Campo Grande 1749-016 Lisboa Portugal
- CIC nanoGUNE BRTA Tolosa Hiribidea 76 20018 Donostia - San Sebastian Euskadi Spain
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13
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Czescik J, Zamolo S, Darbre T, Rigo. R, Sissi C, Pecina A, Riccardi L, De Vivo M, Mancin F, Scrimin P. A Gold Nanoparticle Nanonuclease Relying on a Zn(II) Mononuclear Complex. Angew Chem Int Ed Engl 2021; 60:1423-1432. [PMID: 32985766 PMCID: PMC7839518 DOI: 10.1002/anie.202012513] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Indexed: 12/18/2022]
Abstract
Similarly to enzymes, functionalized gold nanoparticles efficiently catalyze chemical reactions, hence the term nanozymes. Herein, we present our results showing how surface-passivated gold nanoparticles behave as synthetic nanonucleases, able to cleave pBR322 plasmid DNA with the highest efficiency reported so far for catalysts based on a single metal ion mechanism. Experimental and computational data indicate that we have been successful in creating a catalytic site precisely mimicking that suggested for natural metallonucleases relying on a single metal ion for their activity. It comprises one Zn(II) ion to which a phosphate diester of DNA is coordinated. Importantly, as in nucleic acids-processing enzymes, a positively charged arginine plays a key role by assisting with transition state stabilization and by reducing the pKa of the nucleophilic alcohol of a serine. Our results also show how designing a catalyst for a model substrate (bis-p-nitrophenylphosphate) may provide wrong indications as for its efficiency when it is tested against the real target (plasmid DNA).
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Affiliation(s)
- Joanna Czescik
- Department of Chemical SciencesUniversity of Padovavia Marzolo, 135131PadovaItaly
- Current address: School of Life and Health SciencesAston UniversityB4 7ETBirminghamUK
| | - Susanna Zamolo
- Department of Chemistry and BiochemistryUniversity of BernFreiestrasse 3CH-3012BernSwitzerland
| | - Tamis Darbre
- Department of Chemistry and BiochemistryUniversity of BernFreiestrasse 3CH-3012BernSwitzerland
| | - Riccardo Rigo.
- Department of Pharmaceutical and Pharmacological SciencesUniversity of Padovavia Marzolo 535131PadovaItaly
| | - Claudia Sissi
- Department of Pharmaceutical and Pharmacological SciencesUniversity of Padovavia Marzolo 535131PadovaItaly
| | - Adam Pecina
- Laboratory of Molecular Modeling & Drug DiscoveryIstituto Italiano di Tecnologia (IIT)Via Morego 3016163GenovaItaly
| | - Laura Riccardi
- Laboratory of Molecular Modeling & Drug DiscoveryIstituto Italiano di Tecnologia (IIT)Via Morego 3016163GenovaItaly
| | - Marco De Vivo
- Laboratory of Molecular Modeling & Drug DiscoveryIstituto Italiano di Tecnologia (IIT)Via Morego 3016163GenovaItaly
| | - Fabrizio Mancin
- Department of Chemical SciencesUniversity of Padovavia Marzolo, 135131PadovaItaly
| | - Paolo Scrimin
- Department of Chemical SciencesUniversity of Padovavia Marzolo, 135131PadovaItaly
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14
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Czescik J, Zamolo S, Darbre T, Rigo. R, Sissi C, Pecina A, Riccardi L, De Vivo M, Mancin F, Scrimin P. A Gold Nanoparticle Nanonuclease Relying on a Zn(II) Mononuclear Complex. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012513] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Joanna Czescik
- Department of Chemical Sciences University of Padova via Marzolo, 1 35131 Padova Italy
- Current address: School of Life and Health Sciences Aston University B4 7ET Birmingham UK
| | - Susanna Zamolo
- Department of Chemistry and Biochemistry University of Bern Freiestrasse 3 CH-3012 Bern Switzerland
| | - Tamis Darbre
- Department of Chemistry and Biochemistry University of Bern Freiestrasse 3 CH-3012 Bern Switzerland
| | - Riccardo Rigo.
- Department of Pharmaceutical and Pharmacological Sciences University of Padova via Marzolo 5 35131 Padova Italy
| | - Claudia Sissi
- Department of Pharmaceutical and Pharmacological Sciences University of Padova via Marzolo 5 35131 Padova Italy
| | - Adam Pecina
- Laboratory of Molecular Modeling & Drug Discovery Istituto Italiano di Tecnologia (IIT) Via Morego 30 16163 Genova Italy
| | - Laura Riccardi
- Laboratory of Molecular Modeling & Drug Discovery Istituto Italiano di Tecnologia (IIT) Via Morego 30 16163 Genova Italy
| | - Marco De Vivo
- Laboratory of Molecular Modeling & Drug Discovery Istituto Italiano di Tecnologia (IIT) Via Morego 30 16163 Genova Italy
| | - Fabrizio Mancin
- Department of Chemical Sciences University of Padova via Marzolo, 1 35131 Padova Italy
| | - Paolo Scrimin
- Department of Chemical Sciences University of Padova via Marzolo, 1 35131 Padova Italy
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15
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Dou Y, Yang L, Qin L, Dong Y, Zhou Z, Zhang D. Efficient hydrolytic cleavage of phosphodiester with a lanthanide-based metal-organic framework. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2020.121820] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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de Azambuja F, Lenie J, Parac-Vogt TN. Homogeneous Metal Catalysts with Inorganic Ligands: Probing Ligand Effects in Lewis Acid Catalyzed Direct Amide Bond Formation. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04189] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Jille Lenie
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
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17
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de Azambuja F, Parac-Vogt TN. Water-Tolerant and Atom Economical Amide Bond Formation by Metal-Substituted Polyoxometalate Catalysts. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03415] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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18
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Zhou YH, Zhang Z, Patrick M, Yang F, Wei R, Cheng Y, Gu J. Cleaving DNA-model phosphodiester with Lewis acid-base catalytic sites in bifunctional Zr-MOFs. Dalton Trans 2019; 48:8044-8048. [PMID: 31094382 DOI: 10.1039/c9dt00246d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Organophosphates exist in many biomolecules. The design of artificial nucleases for efficient P-O bond cleavage is essential for the fields of genetic engineering and molecular biology. Herein, metal-organic frameworks (MOFs) with cooperatively isolated multi-catalytic active sites were utilized as heterogeneous catalysts for the hydrolytic cleavage of bis(p-nitrophenyl) phosphate (BNPP).
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Affiliation(s)
- Ying-Hua Zhou
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P.R. China.
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19
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Synthesis, spectral characterization, and DNA binding studies of Co(II), Ni(II), Cu(II) and Zn(II) complexes of Schiff base 2-((1H-1,2,4-triazol-3-ylimino)methyl)-5-methoxyphenol. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.11.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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20
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Anyushin AV, Sap A, Quanten T, Proost P, Parac-Vogt TN. Selective Hydrolysis of Ovalbumin Promoted by Hf(IV)-Substituted Wells-Dawson-Type Polyoxometalate. Front Chem 2018; 6:614. [PMID: 30619823 PMCID: PMC6305993 DOI: 10.3389/fchem.2018.00614] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 11/28/2018] [Indexed: 12/14/2022] Open
Abstract
The reactivity and selectivity of Wells-Dawson type polyoxometalate (POM), K16[Hf(α2-P2W17O61)2]·19H2O (Hf1-WD2), have been examined with respect to the hydrolysis of ovalbumin (OVA), a storage protein consisting of 385 amino acids. The exact cleavage sites have been determined by Edman degradation experiments, which indicated that Hf1-WD2 POM selectively cleaved OVA at eight peptide bonds: Phe13-Asp14, Arg85-Asp86, Asn95-Asp96, Ala139-Asp140, Ser148-Trp149, Ala361-Asp362, Asp362-His363, and Pro364-Phe365. A combination of spectroscopic methods including 31P NMR, Circular Dichroism (CD), and Tryptophan (Trp) fluorescence spectroscopy were employed to gain better understanding of the observed selective cleavage and the underlying hydrolytic mechanism. 31P NMR spectra have shown that signals corresponding to Hf1-WD2 gradually broaden upon addition of OVA and completely disappear when the POM-protein molar ratio becomes 1:1, indicating formation of a large POM/protein complex. CD demonstrated that interactions of Hf1-WD2 with OVA in the solution do not result in protein unfolding or denaturation even upon adding an excess of POM. Trp fluorescence spectroscopy measurements revealed that the interaction of Hf1-WD2 with OVA (Kq = 1.1 × 105 M−1) is both quantitatively and qualitatively slightly weaker than the interaction of isostructural Zr-containing Wells-Dawson POM (Zr1-WD2) with human serum albumin (HAS) (Kq = 5.1 × 105 M−1).
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Affiliation(s)
- Alexander V Anyushin
- Laboratory of Bio-Inorganic Chemistry, Department of Chemistry, KU Leuven, Leuven, Belgium
| | - Annelies Sap
- Laboratory of Bio-Inorganic Chemistry, Department of Chemistry, KU Leuven, Leuven, Belgium
| | - Thomas Quanten
- Laboratory of Bio-Inorganic Chemistry, Department of Chemistry, KU Leuven, Leuven, Belgium
| | - Paul Proost
- Laboratory of Molecular Immunology, Department of Microbiology and Immunology, KU Leuven, Leuven, Belgium
| | - Tatjana N Parac-Vogt
- Laboratory of Bio-Inorganic Chemistry, Department of Chemistry, KU Leuven, Leuven, Belgium
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21
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Effect of [Zr(α-PW11O39)2]10− Polyoxometalate on the Self-Assembly of Surfactant Molecules in Water Studied by Fluorescence and DOSY NMR Spectroscopy. INORGANICS 2018. [DOI: 10.3390/inorganics6040112] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The catalytic fragmentation of hydrophobic proteins by polyoxometalates (POMs) requires the presence of surfactants in order to increase the solubility of the protein. Depending on the nature of the surfactant, different effects on the kinetics of protein hydrolysis are observed. As the molecular interactions between the POMs and surfactants in solutions have been scarcely explored, in this study, the interaction between the catalytically active Keggin polyoxometalate [Zr(α-PW11O39)2]10− and four different surfactants—sodium dodecyl sulfate (SDS), dodecyldimethyl(3-sulfopropyl)ammonium (Zw3-12), dodecyldimethyl(3-sulfopropyl) ammonium (CHAPS), and polyethylene glycol tert-octylphenyl ether (TX-100)—have been studied in aqueous media. The effect of polyoxometalate on the self-assembly of surfactant molecules into micelles and on the critical micellar concentration (CMC) has been examined by fluorescence spectroscopy and diffusion ordered NMR spectroscopy (DOSY).
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22
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Quanten T, De Mayaer T, Shestakova P, Parac-Vogt TN. Selectivity and Reactivity of Zr IV and Ce IV Substituted Keggin Type Polyoxometalates Toward Cytochrome c in Surfactant Solutions. Front Chem 2018; 6:372. [PMID: 30211153 PMCID: PMC6121075 DOI: 10.3389/fchem.2018.00372] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 08/02/2018] [Indexed: 12/15/2022] Open
Abstract
In this paper we investigate the effect of three different types of surfactants, on the hydrolysis of Cytochrome c (Cyt c), a predominantly α helical protein containing a heme group, promoted by [Ce(α PW11O39)2]10- (CeK) and [Zr(α PW11O39)2]10- (ZrK) polyoxometalates. In the presence of SDS, Zw3 12, or CHAPS surfactants, which are commonly used for solubilizing hydrophobic proteins, the specificity of CeK or ZrK toward hydrolysis of Cyt c does not change. However, the hydrolysis rate of Cyt c by CeK was increased in the presence of SDS, but decreased in the presence of CHAPS, and was nearly inhibited in the presence of Zw3 12. The Circular dichroism and Tryptophan fluorescence spectroscopy have shown that the structural changes in Cyt c caused by surfactants are similar to those caused by POMs, hence the same specificity in the absence or presence of surfactants was observed. The results also indicate that for Cyt c hydrolysis to occur, large unfolding of the protein is needed in order to accommodate the POMs. While SDS readily unfolds Cyt c, the protein remains largely folded in the presence of CHAPS and Zw3 12. Addition of POMs to Cyt c solutions in CHAPS results in unfolding of the structure allowing the interaction with POMs to occur and results in protein hydrolysis. Zw3 12, however, locks Cyt c in a conformation that resists unfolding upon addition of POM, and therefore results in nearly complete inhibition of protein hydrolysis.
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Affiliation(s)
- Thomas Quanten
- Laboratory of Bio-Inorganic Chemistry, Department of Chemistry, KU Leuven, Leuven, Belgium
| | - Tessa De Mayaer
- Laboratory of Bio-Inorganic Chemistry, Department of Chemistry, KU Leuven, Leuven, Belgium
| | - Pavletta Shestakova
- NMR Centre, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Tatjana N Parac-Vogt
- Laboratory of Bio-Inorganic Chemistry, Department of Chemistry, KU Leuven, Leuven, Belgium
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23
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Zhang DD, Guo ZY, Guo PF, Hu X, Chen XW, Wang JH. Polyoxometalate-Coated Magnetic Nanospheres for Highly Selective Isolation of Immunoglobulin G. ACS APPLIED MATERIALS & INTERFACES 2018; 10:21876-21882. [PMID: 29882647 DOI: 10.1021/acsami.8b05334] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Polyoxometalate [{a-PW11O39Zr(μ-OH)(H2O)}2]8- (POM1) is first prepared by sandwiching ZrIV among 2 mono-lacunary α-Keggin polyoxometalates, and then novel magnetic nanoparticles (NPs), Fe3O4@polyethyleneimine (PEI)@POM1, are fabricated by coating POM1 onto the surface of magnetic Fe3O4@PEI NPs under electrostatic interaction. The obtained Fe3O4@PEI@POM1 NPs are characterized by Fourier transform infrared, zeta potential, vibrating sample magnetometer, transmission electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction. Ascribed to the hydrogen-bonding and electrostatic interactions, the NPs exhibit high adsorption selectivity toward IgG, and the adsorption capacity is high up to 304 mg g-1 under optimal adsorption conditions. By using 0.01% cetyl trimethylammonium bromide to strip the adsorbed protein species, an elution efficiency of 95% is achieved. The feasibility of Fe3O4@PEI@POM1 NPs in real-world sample assay has been demonstrated by the selective isolation of IgG heavy chain and light chain from human serum, as confirmed by the sodium dodecyl sulfate polyacrylamide gel electrophoresis assay.
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Affiliation(s)
- Dan-Dan Zhang
- Department of Chemistry, College of Science , Northeastern University , Shenyang 110819 , China
| | - Zhi-Yong Guo
- Department of Chemistry, College of Science , Northeastern University , Shenyang 110819 , China
| | - Peng-Fei Guo
- Department of Chemistry, College of Science , Northeastern University , Shenyang 110819 , China
| | - Xue Hu
- Department of Chemistry, College of Science , Northeastern University , Shenyang 110819 , China
| | - Xu-Wei Chen
- Department of Chemistry, College of Science , Northeastern University , Shenyang 110819 , China
| | - Jian-Hua Wang
- Department of Chemistry, College of Science , Northeastern University , Shenyang 110819 , China
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24
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Yu Z, Cowan JA. Metal complexes promoting catalytic cleavage of nucleic acids-biochemical tools and therapeutics. Curr Opin Chem Biol 2018; 43:37-42. [PMID: 29153936 PMCID: PMC5847438 DOI: 10.1016/j.cbpa.2017.10.029] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 10/26/2017] [Accepted: 10/29/2017] [Indexed: 01/21/2023]
Abstract
The development of metal complexes that promote degradation of nucleic acids has garnered significant interest as a result of their broad range of potential application. This review focuses on recent progress in the design and synthesis of metal complexes as artificial nucleases that promote either hydrolytic or oxidative cleavage of nucleic acids. Illustrative examples demonstrate the versatility of artificial nucleases for in vitro applications as molecular tools to address biochemical problems, as well as their potential use as therapeutic agents. We also address future challenges for improvement and avenues for further investigation.
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Affiliation(s)
- Zhen Yu
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH 43210, USA
| | - J A Cowan
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH 43210, USA.
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25
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Ly HGT, Parac-Vogt TN. Spectroscopic Study of the Interaction between Horse Heart Myoglobin and Zirconium(IV)-Substituted Polyoxometalates as Artificial Proteases. Chemphyschem 2017; 18:2451-2458. [PMID: 28675658 DOI: 10.1002/cphc.201700680] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Indexed: 01/19/2023]
Abstract
A recent study [Angew. Chem. Int. Ed. 2015, 54, 7391-7394] has shown that horse heart myoglobin (HHM) is selectively hydrolyzed by a range of zirconium(IV)-substituted polyoxometalates (POMs) under mild conditions. In this study, the molecular interactions between the Zr-POM catalysts and HHM are investigated by using a range of complementary techniques, including circular dichroism (CD), UV/Vis spectroscopy, tryptophan fluorescence spectroscopy, and 1 H and 31 P NMR spectroscopy. A tryptophan fluorescence quenching study reveals that, among all examined Zr-POMs, the most reactive POM, 2:2 ZrIV -Keggin, exhibits the strongest interaction with HHM. 31 P NMR spectroscopy studies show that this POM dissociates in solution, resulting in the formation of a monomeric 1:1 ZrIV -Keggin structure, which is likely to be a catalytically active species. In the presence of ZrIV -POMs, HHM does not undergo complete denaturation, as evidenced by CD, UV/Vis, tryptophan fluorescence, and 1 H NMR spectroscopy. CD spectroscopy shows a gradual decrease in the α-helical content of HHM upon addition of ZrIV -POMs. The largest effect is observed in the presence of a large ZrIV -Wells-Dawson structure, whereas small ZrIV -Lindqvist POM has the least influence on the decrease in the α-helical content of HHM. In all cases, the Soret band at λ=409 nm is maintained in the presence of all examined Zr-POMs, which indicates that no conformational changes in the protein occur near the heme group.
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Affiliation(s)
- Hong Giang T Ly
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
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26
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Ortiz M, Debela AM, Svobodova M, Thorimbert S, Lesage D, Cole RB, Hasenknopf B, O'Sullivan CK. PCR Incorporation of Polyoxometalate Modified Deoxynucleotide Triphosphates and Their Application in Molecular Electrochemical Sensing of Yersinia pestis. Chemistry 2017; 23:10597-10603. [PMID: 28544266 DOI: 10.1002/chem.201701295] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Indexed: 12/22/2022]
Abstract
Redox-labeled nucleotides are of increasing interest for the fabrication of next generation molecular tools and should meet requirements of being thermally stable, sensitive, and compatible with polymerase-mediated incorporation while also being electrochemically discriminable. The synthesis and characterization of Keggin and Dawson polyoxometalate-deoxynucleotide (POM-dNTP) bioconjugates linked through 7-deaza-modified purines is described. The modified POM-dNTPs were used for polymerase-based amplification of a DNA sequence specific for Yersinia pestis and the amplified DNA detected using an electrochemical DNA sensor. This highlights the potential of polyoxometalates as thermally stable, sensitive and polymerase-compatible redox labels for exploitation in bioanalytical applications.
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Affiliation(s)
- Mayreli Ortiz
- Department d'Enginyeria Química, Universitat Rovira i Virgili, Avinguda Països Catalans 26, 43007, Tarragona, Spain
| | - Ahmed M Debela
- Institut Parisien de Chimie Moléculaire UMR 8232, Sorbonne Universités, UPMC, Univ. Paris 06, 4 place Jussieu, 75005, Paris, France
| | - Marketa Svobodova
- Department d'Enginyeria Química, Universitat Rovira i Virgili, Avinguda Països Catalans 26, 43007, Tarragona, Spain
| | - Serge Thorimbert
- Institut Parisien de Chimie Moléculaire UMR 8232, Sorbonne Universités, UPMC, Univ. Paris 06, 4 place Jussieu, 75005, Paris, France
| | - Denis Lesage
- Institut Parisien de Chimie Moléculaire UMR 8232, Sorbonne Universités, UPMC, Univ. Paris 06, 4 place Jussieu, 75005, Paris, France
| | - Richard B Cole
- Institut Parisien de Chimie Moléculaire UMR 8232, Sorbonne Universités, UPMC, Univ. Paris 06, 4 place Jussieu, 75005, Paris, France
| | - Bernold Hasenknopf
- Institut Parisien de Chimie Moléculaire UMR 8232, Sorbonne Universités, UPMC, Univ. Paris 06, 4 place Jussieu, 75005, Paris, France
| | - Ciara K O'Sullivan
- Department d'Enginyeria Química, Universitat Rovira i Virgili, Avinguda Països Catalans 26, 43007, Tarragona, Spain.,ICREA, Passeig Lluis Companys 23, 08010, Barcelona, Spain
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27
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Gong C, Zeng X, Xin L, Zhang J, Xie J. Construction of 3D metal–organic frameworks bearing heteropolyoxometalate units and multi-azole molecules and exploration of their photocatalytic activities. RSC Adv 2017. [DOI: 10.1039/c7ra05210c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two novel 3D metal–organic frameworks consisting of rigid ligand modified polyoxomolybdates were obtained and both of them have efficient photocatalytic activities in the degradation of several dye molecules.
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Affiliation(s)
- Chunhua Gong
- College of Biological, Chemical Science and Engineering
- Jiaxing University
- Jiaxing 314001
- P. R. China
- State Key Laboratory of Structural Chemistry
| | - Xianghua Zeng
- College of Biological, Chemical Science and Engineering
- Jiaxing University
- Jiaxing 314001
- P. R. China
| | - Li Xin
- College of Biological, Chemical Science and Engineering
- Jiaxing University
- Jiaxing 314001
- P. R. China
| | - Junyong Zhang
- College of Biological, Chemical Science and Engineering
- Jiaxing University
- Jiaxing 314001
- P. R. China
| | - Jingli Xie
- College of Biological, Chemical Science and Engineering
- Jiaxing University
- Jiaxing 314001
- P. R. China
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28
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Arefian M, Mirzaei M, Eshtiagh-Hosseini H, Frontera A. A survey of the different roles of polyoxometalates in their interaction with amino acids, peptides and proteins. Dalton Trans 2017; 46:6812-6829. [DOI: 10.1039/c7dt00894e] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This perspective provides a comprehensive description of the different roles of POMs in their interaction with relevant biological molecules.
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Affiliation(s)
- Mina Arefian
- Department of Chemistry
- Ferdowsi University of Mashhad
- Mashhad 917751436
- Iran
| | - Masoud Mirzaei
- Department of Chemistry
- Ferdowsi University of Mashhad
- Mashhad 917751436
- Iran
| | | | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca
- Spain
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