1
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Li Z, Wang J, Willner B, Willner I. Topologically Triggered Dynamic DNA Frameworks. Isr J Chem 2023. [DOI: 10.1002/ijch.202300013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Zhenzhen Li
- The Institute of Chemistry The Center for Nanoscience and Nanotechnology The Hebrew University of Jerusalem Jerusalem 91904 Israel
| | - Jianbang Wang
- The Institute of Chemistry The Center for Nanoscience and Nanotechnology The Hebrew University of Jerusalem Jerusalem 91904 Israel
| | - Bilha Willner
- The Institute of Chemistry The Center for Nanoscience and Nanotechnology The Hebrew University of Jerusalem Jerusalem 91904 Israel
| | - Itamar Willner
- The Institute of Chemistry The Center for Nanoscience and Nanotechnology The Hebrew University of Jerusalem Jerusalem 91904 Israel
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2
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Wang C, O'Hagan MP, Willner B, Willner I. Bioinspired Artificial Photosynthetic Systems. Chemistry 2021; 28:e202103595. [PMID: 34854505 DOI: 10.1002/chem.202103595] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Indexed: 12/18/2022]
Abstract
Mimicking photosynthesis using artificial systems, as a means for solar energy conversion and green fuel generation, is one of the holy grails of modern science. This perspective presents recent advances towards developing artificial photosynthetic systems. In one approach, native photosystems are interfaced with electrodes to yield photobioelectrochemical cells that transform light energy into electrical power. This is exemplified by interfacing photosystem I (PSI) and photosystem II (PSII) as an electrically contacted assembly mimicking the native Z-scheme, and by the assembly of an electrically wired PSI/glucose oxidase biocatalytic conjugate on an electrode support. Illumination of the functionalized electrodes led to light-induced generation of electrical power, or to the generation of photocurrents using glucose as the fuel. The second approach introduces supramolecular photosensitizer nucleic acid/electron acceptor complexes as functional modules for effective photoinduced electron transfer stimulating the subsequent biocatalyzed generation of NADPH or the Pt-nanoparticle-catalyzed evolution of molecular hydrogen. Application of the DNA machineries for scaling-up the photosystems is demonstrated. A third approach presents the integration of artificial photosynthetic modules into dynamic nucleic acid networks undergoing reversible reconfiguration or dissipative transient operation in the presence of auxiliary triggers. Control over photoinduced electron transfer reactions and photosynthetic transformations by means of the dynamic networks is demonstrated.
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Affiliation(s)
- Chen Wang
- Institute of Chemistry, The Minerva Centre for Bio-Hybrid Complex Systems, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Michael P O'Hagan
- Institute of Chemistry, The Minerva Centre for Bio-Hybrid Complex Systems, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Bilha Willner
- Institute of Chemistry, The Minerva Centre for Bio-Hybrid Complex Systems, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Itamar Willner
- Institute of Chemistry, The Minerva Centre for Bio-Hybrid Complex Systems, The Hebrew University of Jerusalem, Jerusalem, Israel
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3
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Luo G, Biniuri Y, Chen W, Wang J, Neumann E, Marjault H, Nechushtai R, Winkler M, Happe T, Willner I. Modelling Photosynthesis with Zn
II
‐Protoporphyrin All‐DNA G‐Quadruplex/Aptamer Scaffolds. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002915] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Guo‐Feng Luo
- Institute of Chemistry and Center for Nanoscience and Nanotechnology The Hebrew University of Jerusalem Jerusalem 91904 Israel
| | - Yonatan Biniuri
- Institute of Chemistry and Center for Nanoscience and Nanotechnology The Hebrew University of Jerusalem Jerusalem 91904 Israel
| | - Wei‐Hai Chen
- Institute of Chemistry and Center for Nanoscience and Nanotechnology The Hebrew University of Jerusalem Jerusalem 91904 Israel
| | - Jianbang Wang
- Institute of Chemistry and Center for Nanoscience and Nanotechnology The Hebrew University of Jerusalem Jerusalem 91904 Israel
| | - Ehud Neumann
- Institute of Life Science The Hebrew University of Jerusalem Jerusalem 91904 Israel
| | | | - Rachel Nechushtai
- Institute of Life Science The Hebrew University of Jerusalem Jerusalem 91904 Israel
| | - Martin Winkler
- Department of Biochemistry of Plants Ruhr-University Bochum Germany
| | - Thomas Happe
- Department of Biochemistry of Plants Ruhr-University Bochum Germany
| | - Itamar Willner
- Institute of Chemistry and Center for Nanoscience and Nanotechnology The Hebrew University of Jerusalem Jerusalem 91904 Israel
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4
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Luo GF, Biniuri Y, Chen WH, Wang J, Neumann E, Marjault HB, Nechushtai R, Winkler M, Happe T, Willner I. Modelling Photosynthesis with Zn II -Protoporphyrin All-DNA G-Quadruplex/Aptamer Scaffolds. Angew Chem Int Ed Engl 2020; 59:9163-9170. [PMID: 32125762 DOI: 10.1002/anie.202002915] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Indexed: 01/03/2023]
Abstract
All-DNA scaffolds act as templates for the organization of photosystem I model systems. A series of DNA templates composed of ZnII -protoporphyrin IX (ZnII PPIX)-functionalized G-quadruplex conjugated to the 3'- or 5'-end of the tyrosinamide (TA) aptamer and ZnII PPIX/G-quadruplex linked to the 3'- and 5'-ends of the TA aptamer through a four-thymidine bridge. Effective photoinduced electron transfer (ET) from ZnII PPIX/G-quadruplex to bipyridinium-functionalized tyrosinamide, TA-MV2+ , bound to the TA aptamer units is demonstrated. The effectiveness of the primary ET quenching of ZnII PPIX/G-quadruplex by TA-MV2+ controls the efficiency of the generation of TA-MV+. . The photosystem-controlled formation of TA-MV+. by the different photosystems dictates the secondary activation of the ET cascade corresponding to the ferredoxin-NADP+ reductase (FNR)-catalysed reduction of NADP+ to NADPH by TA-MV+. , and the sequestered alcohol dehydrogenase catalysed reduction of acetophenone to 1-phenylethanol by NADPH.
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Affiliation(s)
- Guo-Feng Luo
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Yonatan Biniuri
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Wei-Hai Chen
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Jianbang Wang
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Ehud Neumann
- Institute of Life Science, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | | | - Rachel Nechushtai
- Institute of Life Science, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Martin Winkler
- Department of Biochemistry of Plants, Ruhr-University Bochum, Germany
| | - Thomas Happe
- Department of Biochemistry of Plants, Ruhr-University Bochum, Germany
| | - Itamar Willner
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
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5
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Liu M, Wang J, Chang Y, Zhang Q, Chang D, Hui CY, Brennan JD, Li Y. In Vitro Selection of a DNA Aptamer Targeting Degraded Protein Fragments for Biosensing. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Meng Liu
- School of Environmental Science and Technology Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) Dalian University of Technology Dalian 116024 China
| | - Jiayi Wang
- School of Environmental Science and Technology Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) Dalian University of Technology Dalian 116024 China
| | - Yangyang Chang
- School of Environmental Science and Technology Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) Dalian University of Technology Dalian 116024 China
| | - Qiang Zhang
- School of Bioengineering Dalian University of Technology Dalian 116024 China
| | - Dingran Chang
- Department of Biochemistry and Biomedical Sciences Michael G. DeGroote Institute of Infectious Disease Research (IIDR) McMaster University 1280 Main Street West Hamilton Ontario L8S4K1 Canada
| | - Christy Y. Hui
- Biointerfaces Institute McMaster University 1280 Main Street West Hamilton Ontario L8S4O3 Canada
| | - John D. Brennan
- Biointerfaces Institute McMaster University 1280 Main Street West Hamilton Ontario L8S4O3 Canada
| | - Yingfu Li
- Biointerfaces Institute McMaster University 1280 Main Street West Hamilton Ontario L8S4O3 Canada
- Department of Biochemistry and Biomedical Sciences Michael G. DeGroote Institute of Infectious Disease Research (IIDR) McMaster University 1280 Main Street West Hamilton Ontario L8S4K1 Canada
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6
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Liu M, Wang J, Chang Y, Zhang Q, Chang D, Hui CY, Brennan JD, Li Y. In Vitro Selection of a DNA Aptamer Targeting Degraded Protein Fragments for Biosensing. Angew Chem Int Ed Engl 2020; 59:7706-7710. [PMID: 32155319 DOI: 10.1002/anie.202000025] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Indexed: 12/15/2022]
Abstract
Protein biomarkers often exist as degradation fragments in biological samples, and affinity agents derived using a purified protein may not recognize them, limiting their value for clinical diagnosis. Herein, we present a method to overcome this issue, by selecting aptamers against a degraded form of the toxin B protein, which is a marker for diagnosing toxigenic Clostridium difficile infections. This approach has led to isolation of a DNA aptamer that recognizes degraded toxin B, fresh toxin B, and toxin B spiked into human stool samples. DNA aptamers selected using intact recombinant toxin B failed to recognize degraded toxin B, which is the form present in stored stool samples. Using this new aptamer, we produced a simple paper-based analytical device for colorimetric detection of toxin B in stool samples, or in the NAP1 strain of Clostridium difficile. The combined aptamer-selection and paper-sensing strategy can expand the practical utility of DNA aptamers in clinical diagnosis.
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Affiliation(s)
- Meng Liu
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian, 116024, China
| | - Jiayi Wang
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian, 116024, China
| | - Yangyang Chang
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian, 116024, China
| | - Qiang Zhang
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Dingran Chang
- Department of Biochemistry and Biomedical Sciences, Michael G. DeGroote Institute of Infectious Disease Research (IIDR), McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S4K1, Canada
| | - Christy Y Hui
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S4O3, Canada
| | - John D Brennan
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S4O3, Canada
| | - Yingfu Li
- Biointerfaces Institute, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S4O3, Canada.,Department of Biochemistry and Biomedical Sciences, Michael G. DeGroote Institute of Infectious Disease Research (IIDR), McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S4K1, Canada
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7
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Bornscheuer UT, Hauer B, Jaeger KE, Schwaneberg U. Gerichtete Evolution ermöglicht das Design von maßgeschneiderten Proteinen zur nachhaltigen Produktion von Chemikalien und Pharmazeutika. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201812717] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Uwe T. Bornscheuer
- Biotechnologie & Enzymkatalyse; Institut für Biochemie; Universität Greifswald; Felix-Hausdorff-Straße 4 17487 Greifswald Deutschland
| | - Bernhard Hauer
- Institut für Technische Biochemie; Universität Stuttgart; Allmandring 31 70569 Stuttgart Deutschland
| | - Karl Erich Jaeger
- Institut für Molekulare Enzymtechnologie; Heinrich-Heine-, Universität Düsseldorf & Forschungszentrum Jülich; Wilhelm-Johnen-Straße 52426 Jülich Deutschland
| | - Ulrich Schwaneberg
- ABBt-Institut für Biotechnologie; RWTH Aachen und DWI Leibniz-Institut für Interaktive Materialien; Worringer Weg 3 52074 Aachen Deutschland
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8
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Bornscheuer UT, Hauer B, Jaeger KE, Schwaneberg U. Directed Evolution Empowered Redesign of Natural Proteins for the Sustainable Production of Chemicals and Pharmaceuticals. Angew Chem Int Ed Engl 2018; 58:36-40. [DOI: 10.1002/anie.201812717] [Citation(s) in RCA: 124] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Indexed: 01/22/2023]
Affiliation(s)
- Uwe T. Bornscheuer
- Biotechnology & Enzyme Catalysis; Institute of Biochemistry; Greifswald University; Felix Hausdorff Strasse 4 17487 Greifswald Germany
| | - Bernhard Hauer
- Institute of Technical Biochemistry; University of Stuttgart; Allmandring 31 70569 Stuttgart Germany
| | - Karl Erich Jaeger
- Institute of Molecular Enzyme Technology; Heinrich Heine University Düsseldorf and Research Center Jülich; Wilhelm Johnen Strasse 52426 Jülich Germany
| | - Ulrich Schwaneberg
- ABBt-Institute of Biotechnology; RWTH Aachen University and DWI Leibniz Institute for, Interactive Materials; Worringer Weg 3 52074 Aachen Germany
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9
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Wang S, Yue L, Li Z, Zhang J, Tian H, Willner I. Light‐Induced Reversible Reconfiguration of DNA‐Based Constitutional Dynamic Networks: Application to Switchable Catalysis. Angew Chem Int Ed Engl 2018; 57:8105-8109. [DOI: 10.1002/anie.201803371] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Shan Wang
- Institute of ChemistryThe Center for Nanoscience and NanotechnologyThe Hebrew University of Jerusalem Jerusalem 91904 Israel
| | - Liang Yue
- Institute of ChemistryThe Center for Nanoscience and NanotechnologyThe Hebrew University of Jerusalem Jerusalem 91904 Israel
| | - Zi‐Yuan Li
- Key Laboratory for Advanced MaterialsSchool of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai China
| | - Junji Zhang
- Key Laboratory for Advanced MaterialsSchool of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai China
| | - He Tian
- Key Laboratory for Advanced MaterialsSchool of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai China
| | - Itamar Willner
- Institute of ChemistryThe Center for Nanoscience and NanotechnologyThe Hebrew University of Jerusalem Jerusalem 91904 Israel
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10
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Wang S, Yue L, Li Z, Zhang J, Tian H, Willner I. Light‐Induced Reversible Reconfiguration of DNA‐Based Constitutional Dynamic Networks: Application to Switchable Catalysis. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803371] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shan Wang
- Institute of ChemistryThe Center for Nanoscience and NanotechnologyThe Hebrew University of Jerusalem Jerusalem 91904 Israel
| | - Liang Yue
- Institute of ChemistryThe Center for Nanoscience and NanotechnologyThe Hebrew University of Jerusalem Jerusalem 91904 Israel
| | - Zi‐Yuan Li
- Key Laboratory for Advanced MaterialsSchool of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai China
| | - Junji Zhang
- Key Laboratory for Advanced MaterialsSchool of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai China
| | - He Tian
- Key Laboratory for Advanced MaterialsSchool of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai China
| | - Itamar Willner
- Institute of ChemistryThe Center for Nanoscience and NanotechnologyThe Hebrew University of Jerusalem Jerusalem 91904 Israel
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11
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Wang P, Silverman SK. DNA-Catalyzed Introduction of Azide at Tyrosine for Peptide Modification. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Puzhou Wang
- Department of Chemistry; University of Illinois at Urbana-Champaign; 600 South Mathews Avenue Urbana IL 61801 USA
| | - Scott K. Silverman
- Department of Chemistry; University of Illinois at Urbana-Champaign; 600 South Mathews Avenue Urbana IL 61801 USA
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12
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Wang P, Silverman SK. DNA-Catalyzed Introduction of Azide at Tyrosine for Peptide Modification. Angew Chem Int Ed Engl 2016; 55:10052-6. [PMID: 27391404 PMCID: PMC4993102 DOI: 10.1002/anie.201604364] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Indexed: 12/12/2022]
Abstract
We show that DNA enzymes (deoxyribozymes) can introduce azide functional groups at tyrosine residues in peptide substrates. Using in vitro selection, we identified deoxyribozymes that transfer the 2′‐azido‐2′‐deoxyadenosine 5′‐monophosphoryl group (2′‐Az‐dAMP) from the analogous 5′‐triphosphate (2′‐Az‐dATP) onto the tyrosine hydroxyl group of a peptide, which is either tethered to a DNA anchor or free. Some of the new deoxyribozymes are general with regard to the amino acid residues surrounding the tyrosine, while other DNA enzymes are sequence‐selective. We use one of the new deoxyribozymes to modify free peptide substrates by attaching PEG moieties and fluorescent labels.
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Affiliation(s)
- Puzhou Wang
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL, 61801, USA
| | - Scott K Silverman
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL, 61801, USA.
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13
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Sherstyuk YV, Abramova TV. How To Form a Phosphate Anhydride Linkage in Nucleotide Derivatives. Chembiochem 2015; 16:2562-70. [PMID: 26420042 DOI: 10.1002/cbic.201500406] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Indexed: 12/25/2022]
Abstract
The fundamental roles of nucleoside triphosphates and nucleotide cofactors such as NAD(+) in biochemistry are well known. In recent decades, continuing research has revealed the key role of 5'-capped RNA and 5',5'-dinucleoside polyphosphates in the regulation of vitally important physiological processes. Last but not least, the commercial potential of nucleoside triphosphate synthesis can hardly be overestimated. Nevertheless, despite decades of investigation and the obvious topicality of the research on the chemical synthesis of the nucleotide compounds containing phosphate anhydride linkages, none of the existing procedures can be considered an up-to-date "gold standard". However, there are a number of fruitful synthetic approaches to forming phosphate anhydride linkages in satisfactory yield. These are summarized in this concise review, organized by the type of active phosphorous intermediate and reagents used.
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Affiliation(s)
- Yuliya V Sherstyuk
- Laboratory of Organic Synthesis, Institute of Chemical Biology and Fundamental Medicine, SB RAS, Lavrent'ev Avenue, 8, Novosibirsk, 630090, Russia
| | - Tatyana V Abramova
- Laboratory of Organic Synthesis, Institute of Chemical Biology and Fundamental Medicine, SB RAS, Lavrent'ev Avenue, 8, Novosibirsk, 630090, Russia.
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14
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Lu CH, Willner I. Stimuli-Responsive DNA-Functionalized Nano-/Microcontainers for Switchable and Controlled Release. Angew Chem Int Ed Engl 2015; 54:12212-35. [DOI: 10.1002/anie.201503054] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Indexed: 01/04/2023]
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15
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Lu CH, Willner I. Stimuliresponsive DNA-funktionalisierte Nano- und Mikrocontainer zur schaltbaren und kontrollierten Freisetzung. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503054] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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16
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Endo M, Takeuchi Y, Suzuki Y, Emura T, Hidaka K, Wang F, Willner I, Sugiyama H. Single-Molecule Visualization of the Activity of a Zn2+
-Dependent DNAzyme. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504656] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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17
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Endo M, Takeuchi Y, Suzuki Y, Emura T, Hidaka K, Wang F, Willner I, Sugiyama H. Single-Molecule Visualization of the Activity of a Zn(2+)-Dependent DNAzyme. Angew Chem Int Ed Engl 2015. [PMID: 26195344 DOI: 10.1002/anie.201504656] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We demonstrate the single-molecule imaging of the catalytic reaction of a Zn(2+)-dependent DNAzyme in a DNA origami nanostructure. The single-molecule catalytic activity of the DNAzyme was examined in the designed nanostructure, a DNA frame. The DNAzyme and a substrate strand attached to two supported dsDNA molecules were assembled in the DNA frame in two different configurations. The reaction was monitored by observing the configurational changes of the incorporated DNA strands in the DNA frame. This configurational changes were clearly observed in accordance with the progress of the reaction. The separation processes of the dsDNA molecules, as induced by the cleavage by the DNAzyme, were directly visualized by high-speed atomic force microscopy (AFM). This nanostructure-based AFM imaging technique is suitable for the monitoring of various chemical and biochemical catalytic reactions at the single-molecule level.
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Affiliation(s)
- Masayuki Endo
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Yoshida-ushinomiyacho, Sakyo-ku, Kyoto 606-8501 (Japan).
- CREST (Japan) Science and Technology Agency (JST), Sanbancho, Chiyoda-ku, Tokyo 102-0075 (Japan).
| | - Yosuke Takeuchi
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502 (Japan)
| | - Yuki Suzuki
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502 (Japan)
| | - Tomoko Emura
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502 (Japan)
| | - Kumi Hidaka
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502 (Japan)
| | - Fuan Wang
- Institute of Chemistry, The Minerva Center for Biohybrid Complex Systems, The Hebrew University of Jerusalem, Jerusalem 91904 (Israel)
| | - Itamar Willner
- Institute of Chemistry, The Minerva Center for Biohybrid Complex Systems, The Hebrew University of Jerusalem, Jerusalem 91904 (Israel).
| | - Hiroshi Sugiyama
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Yoshida-ushinomiyacho, Sakyo-ku, Kyoto 606-8501 (Japan).
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502 (Japan).
- CREST (Japan) Science and Technology Agency (JST), Sanbancho, Chiyoda-ku, Tokyo 102-0075 (Japan).
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18
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Stadlbauer P, Šponer J, Costanzo G, Di Mauro E, Pino S, Šponer JE. Tetraloop-like geometries could form the basis of the catalytic activity of the most ancient ribooligonucleotides. Chemistry 2015; 21:3596-604. [PMID: 25640446 DOI: 10.1002/chem.201406140] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Indexed: 11/09/2022]
Abstract
The origin of the catalytic activity of ancient oligonucleotides is a largely unexplored field of contemporary science. In the current work we use molecular dynamics simulations to investigate the plausibility of tetraloop-like overhang geometries to initiate transphosphorylation reactions that lead to ligation and terminal cleavage in simple, Watson-Crick (WC) complementary oligoC/oligoG sequences observed experimentally. We show a series of examples of known tetraloop architectures, which can be adopted by the unpaired overhangs of short oligonucleotide sequences for a sufficiently long time to enable chemical reactions that lead to simple ribozyme-like catalytic activity. Thus, our computations demonstrate that the role of non-WC interactions at the emergence of the most ancient catalytic oligonucleotides could be more significant than ever believed.
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Affiliation(s)
- Petr Stadlbauer
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Královopolská 135, 61265 Brno (Czech Republic)
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19
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GAO F, LIU F, ZHENG J, ZENG M, JIANG Y. A Catalytic DNA Probe with Stem-loop Motif for Human T47D Breast Cancer Cells. ANAL SCI 2015; 31:815-22. [DOI: 10.2116/analsci.31.815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Fei GAO
- Department of Chemistry, Tsinghua University
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, the Graduate School at Shenzhen, Tsinghua University
| | - Feng LIU
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, the Graduate School at Shenzhen, Tsinghua University
| | - Jing ZHENG
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, the Graduate School at Shenzhen, Tsinghua University
| | - MeiYun ZENG
- Shenzhen Kivita Innovative Drug Discovery Institute
| | - Yuyang JIANG
- Department of Chemistry, Tsinghua University
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, the Graduate School at Shenzhen, Tsinghua University
- Department of Pharmacology and Pharmaceutical Sciences, School of Medicine, Tsinghua University
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20
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Wang F, Liu X, Willner I. DNA switches: from principles to applications. Angew Chem Int Ed Engl 2014; 54:1098-129. [PMID: 25521588 DOI: 10.1002/anie.201404652] [Citation(s) in RCA: 355] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 06/25/2014] [Indexed: 12/13/2022]
Abstract
The base sequence of nucleic acid encodes structural and functional properties into the biopolymer. Structural information includes the formation of duplexes, G-quadruplexes, i-motif, and cooperatively stabilized assemblies. Functional information encoded in the base sequence involves the strand-displacement process, the recognition properties by aptamers, and the catalytic functions of DNAzymes. This Review addresses the implementation of the information encoded in nucleic acids to develop DNA switches. A DNA switch is a supramolecular nucleic acid assembly that undergoes cyclic, switchable, transitions between two distinct states in the presence of appropriate triggers and counter triggers, such as pH value, metal ions/ligands, photonic and electrical stimuli. Applications of switchable DNA systems to tailor switchable DNA hydrogels, for the controlled drug-release and for the activation of switchable enzyme cascades, are described, and future perspectives of the systems are addressed.
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Affiliation(s)
- Fuan Wang
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904 (Israel) http://chem.ch.huji.ac.il/willner/
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Brandsen BM, Velez TE, Sachdeva A, Ibrahim NA, Silverman SK. DNA-catalyzed lysine side chain modification. Angew Chem Int Ed Engl 2014; 53:9045-50. [PMID: 24981820 DOI: 10.1002/anie.201404622] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Indexed: 02/03/2023]
Abstract
Catalyzing the covalent modification of aliphatic amino groups, such as the lysine (Lys) side chain, by nucleic acids has been challenging to achieve. Such catalysis will be valuable, for example, for the practical preparation of Lys-modified proteins. We previously reported the DNA-catalyzed modification of the tyrosine and serine hydroxy side chains, but Lys modification has been elusive. Herein, we show that increasing the reactivity of the electrophilic reaction partner by using 5'-phosphorimidazolide (5'-Imp) rather than 5'-triphosphate (5'-ppp) enables the DNA-catalyzed modification of Lys in a DNA-anchored peptide substrate. The DNA-catalyzed reaction of Lys with 5'-Imp is observed in an architecture in which the nucleophile and electrophile are not preorganized. In contrast, previous efforts showed that catalysis was not observed when Lys and 5'-ppp were used in a preorganized arrangement. Therefore, substrate reactivity is more important than preorganization in this context. These findings will assist ongoing efforts to identify DNA catalysts for reactions of protein substrates at lysine side chains.
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Affiliation(s)
- Benjamin M Brandsen
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801 (USA) http://www.scs.illinois.edu/silverman/
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Brandsen BM, Velez TE, Sachdeva A, Ibrahim NA, Silverman SK. DNA-Catalyzed Lysine Side Chain Modification. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404622] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Samanta B, Höbartner C. Mutationsanalyse funktionaler DNA durch statistische Nucleosiddeletion. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201208103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Samanta B, Höbartner C. Combinatorial nucleoside-deletion-scanning mutagenesis of functional DNA. Angew Chem Int Ed Engl 2013; 52:2995-9. [PMID: 23371361 DOI: 10.1002/anie.201208103] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 01/03/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Biswajit Samanta
- Research Group Nucleic Acid Chemistry, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
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Schill M, Koslowski T. Sensing organic molecules by charge transfer through aptamer-target complexes: theory and simulation. J Phys Chem B 2013; 117:475-83. [PMID: 23227783 DOI: 10.1021/jp308042n] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Aptamers, i.e., short sequences of RNA and single-stranded DNA, are capable of specificilly binding objects ranging from small molecules over proteins to entire cells. Here, we focus on the structure, stability, dynamics, and electronic properties of oligonucleotides that interact with aromatic or heterocyclic targets. Large-scale molecular dynamics simulations indicate that aromatic rings such as dyes, metabolites, or alkaloides form stable adducts with their oligonucleotide host molecules at least on the simulation time scale. From molecular dynamics snapshots, the energy parameters relevant to Marcus' theory of charge transfer are computed using a modified Su-Schrieffer-Heeger Hamiltonian, permitting an estimate of the charge transfer rates. In many cases, aptamer binding seriously influences the charge transfer kinetics and the charge carrier mobility within the complex, with conductivities up to the nanoampere range for a single complex. We discuss the conductivity properties with reference to potential applications as biosensors.
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Affiliation(s)
- Maria Schill
- Institut für Physikalische Chemie, Universität Freiburg, Albertstrasse 23a, D-79104 Freiburg im Breisgau, Germany
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Hollenstein M. Synthesis of deoxynucleoside triphosphates that include proline, urea, or sulfonamide groups and their polymerase incorporation into DNA. Chemistry 2012; 18:13320-30. [PMID: 22996052 DOI: 10.1002/chem.201201662] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 06/21/2012] [Indexed: 01/02/2023]
Abstract
To expand the chemical array available for DNA sequences in the context of in vitro selection, I present herein the synthesis of five nucleoside triphosphate analogues containing side chains capable of organocatalysis. The synthesis involved the coupling of L-proline-containing residues (dU(tP)TP and dU(cP)TP), a dipeptide (dU(FP)TP), a urea derivative (dU(Bpu)TP), and a sulfamide residue (dU(Bs)TP) to a suitably protected common intermediate, followed by triphosphorylation. These modified dNTPs were shown to be excellent substrates for the Vent (exo(-)) and Pwo DNA polymerases, as well as the Klenow fragment of E. coli DNA polymerase I, although they were only acceptable substrates for the 9°N(m) polymerase. All of the modified dNTPs, with the exception of dU(Bpu)TP, were readily incorporated into DNA by the polymerase chain reaction (PCR). Modified oligonucleotides efficiently served as templates for PCR for the regeneration of unmodified DNA. Thermal denaturation experiments showed that these modifications are tolerated in the major groove. Overall, these heavily modified dNTPs are excellent candidates for SELEX.
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Affiliation(s)
- Marcel Hollenstein
- Department of Chemistry & Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland.
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Abe H, Abe N, Shibata A, Ito K, Tanaka Y, Ito M, Saneyoshi H, Shuto S, Ito Y. Structure Formation and Catalytic Activity of DNA Dissolved in Organic Solvents. Angew Chem Int Ed Engl 2012; 51:6475-9. [DOI: 10.1002/anie.201201111] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Revised: 03/27/2012] [Indexed: 01/22/2023]
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Abe H, Abe N, Shibata A, Ito K, Tanaka Y, Ito M, Saneyoshi H, Shuto S, Ito Y. Structure Formation and Catalytic Activity of DNA Dissolved in Organic Solvents. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201111] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Eschenmoser A. Ätiologie potentiell primordialer Biomolekül-Strukturen: Vom Vitamin B12 zu den Nukleinsäuren und der Frage nach der Chemie der Entstehung des Lebens - ein Rückblick. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103672] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Eschenmoser A. Etiology of potentially primordial biomolecular structures: from vitamin B12 to the nucleic acids and an inquiry into the chemistry of life's origin: a retrospective. Angew Chem Int Ed Engl 2011; 50:12412-72. [PMID: 22162284 DOI: 10.1002/anie.201103672] [Citation(s) in RCA: 135] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Indexed: 11/10/2022]
Abstract
"We'll never be able to know" is a truism that leads to resignation with respect to any experimental effort to search for the chemistry of life's origin. But such resignation runs radically counter to the challenge imposed upon chemistry as a natural science. Notwithstanding the prognosis according to which the shortest path to understanding the metamorphosis of the chemical into the biological is by way of experimental modeling of "artificial chemical life", the scientific search for the route nature adopted in creating the life we know will arguably never truly end. It is, after all, part of the search for our own origin.
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Affiliation(s)
- Albert Eschenmoser
- Organisch-chemisches Laboratorium der ETH Zürich, Hönggerberg, Wolfgang-Pauli-Str. 10, CHI H309, CH-8093 Zürich, Switzerland
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Wong OY, Mulcrone AE, Silverman SK. DNA-catalyzed reductive amination. Angew Chem Int Ed Engl 2011; 50:11679-84. [PMID: 21994131 DOI: 10.1002/anie.201104976] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Revised: 09/22/2011] [Indexed: 11/12/2022]
Affiliation(s)
- On Yi Wong
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA
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Ali MM, Aguirre SD, Lazim H, Li Y. Fluorogenic DNAzyme Probes as Bacterial Indicators. Angew Chem Int Ed Engl 2011; 50:3751-4. [DOI: 10.1002/anie.201100477] [Citation(s) in RCA: 160] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Indexed: 12/19/2022]
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Ali MM, Aguirre SD, Lazim H, Li Y. Fluorogenic DNAzyme Probes as Bacterial Indicators. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100477] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Silverman SK. DNA as a versatile chemical component for catalysis, encoding, and stereocontrol. Angew Chem Int Ed Engl 2011; 49:7180-201. [PMID: 20669202 DOI: 10.1002/anie.200906345] [Citation(s) in RCA: 201] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
DNA (deoxyribonucleic acid) is the genetic material common to all of Earth's organisms. Our biological understanding of DNA is extensive and well-exploited. In recent years, chemists have begun to develop DNA for nonbiological applications in catalysis, encoding, and stereochemical control. This Review summarizes key advances in these three exciting research areas, each of which takes advantage of a different subset of DNA's useful chemical properties.
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Affiliation(s)
- Scott K Silverman
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA.
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Silverman SK. DNA - eine vielseitige chemische Verbindung für die Katalyse, zur Kodierung und zur Stereokontrolle. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200906345] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Fournier P, Fiammengo R, Jäschke A. Allylic amination by a DNA-diene-iridium(I) hybrid catalyst. Angew Chem Int Ed Engl 2009; 48:4426-9. [PMID: 19431178 DOI: 10.1002/anie.200900713] [Citation(s) in RCA: 112] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
DNA hybrid catalysis goes organometallic: A DNA strand functionalized with diene ligands forms iridium(I) complexes that can efficiently catalyze an allylic amination in aqueous medium (see scheme). The DNA-based complexes show high stability and activity, and their secondary structure influences the stereoselectivity of the reaction.
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Affiliation(s)
- Pierre Fournier
- Institut für Pharmazie und Molekulare Biotechnologie, Universität Heidelberg, 69120 Heidelberg, Germany
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A DNAzyme with Three Protein-Like Functional Groups: Enhancing Catalytic Efficiency of M2+-Independent RNA Cleavage. Chembiochem 2009; 10:1988-92. [DOI: 10.1002/cbic.200900314] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Fournier P, Fiammengo R, Jäschke A. Allylische Aminierung durch einen DNA-Dien-Iridium(I)- Hybridkatalysator. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200900713] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
Aptamers are small single-stranded nucleic acids that fold into a well-defined three-dimensional structure. They show a high affinity and specificity for their target molecules and inhibit their biological functions. Aptamers belong to the nucleic acids family and can be synthesized by chemical or enzymatic procedures, or a combination of the two. They can, therefore, be considered as both chemical and biological substances. This Review summarizes the most convenient approaches to their preparation and new developments in the field of aptamers. The application of aptamers in chemical biology is also discussed.
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Affiliation(s)
- Günter Mayer
- Life and Medical Sciences, Prog. Unit Chemical Biology and Medicinal Chemistry, University of Bonn c/o Kekulé-Institute for Organic Chemistry and Biochemistry, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany.
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Blouin S, Mulhbacher J, Penedo JC, Lafontaine DA. Riboswitches: ancient and promising genetic regulators. Chembiochem 2009; 10:400-16. [PMID: 19101979 DOI: 10.1002/cbic.200800593] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BAIT AND SWITCH: Metabolite-sensing riboswitches make use of RNA structural modulation to regulate gene expression, as illustrated in the scheme, in response to subtle changes in metabolite concentrations. This review describes the current knowledge about naturally occurring riboswitches and their growing potential as antibacterial cellular targets and as molecular biosensors. Newly discovered metabolite-sensing riboswitches have revealed that cellular processes extensively make use of RNA structural modulation to regulate gene expression in response to subtle changes in metabolite concentrations. Riboswitches are involved at various regulation levels of gene expression, such as transcription attenuation, translation initiation, mRNA splicing and mRNA processing. Riboswitches are found in the three kingdoms of life, and in various cases, are involved in the regulation of essential genes, which makes their regulation an essential part of cell survival. Because riboswitches operate without the assistance of accessory proteins, they are believed to be remnants of an ancient time, when gene regulation was strictly based on RNA, from which are left numerous "living molecular fossils", as exemplified by ribozymes, and more spectacularly, by the ribosome. Due to their nature, riboswitches hold high expectations for the manipulation of gene expression and the detection of small metabolites, and also offer an unprecedented potential for the discovery of novel classes of antimicrobial agents.
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Affiliation(s)
- Simon Blouin
- Département de biologie, Université de Sherbrooke, Sherbrooke, Canada
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Hollenstein M, Hipolito C, Lam C, Dietrich D, Perrin D. A Highly Selective DNAzyme Sensor for Mercuric Ions. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200800960] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hollenstein M, Hipolito C, Lam C, Dietrich D, Perrin D. A Highly Selective DNAzyme Sensor for Mercuric Ions. Angew Chem Int Ed Engl 2008; 47:4346-50. [DOI: 10.1002/anie.200800960] [Citation(s) in RCA: 289] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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