1
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Danneberg F, Westemeier H, Horx P, Zellmann F, Dörr K, Kalden E, Zeiger M, Akpinar A, Berger R, Göbel MW. RNA Hydrolysis by Heterocyclic Amidines and Guanidines: Parameters Affecting Reactivity. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Friederike Danneberg
- Institut für Organische Chemie und Chemische Biologie Goethe-Universität Frankfurt Max-von-Laue-Str. 7 D-60438 Frankfurt am Main Germany
| | - Hauke Westemeier
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 35032 Marburg Germany
| | - Philip Horx
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 35032 Marburg Germany
| | - Felix Zellmann
- Institut für Organische Chemie und Chemische Biologie Goethe-Universität Frankfurt Max-von-Laue-Str. 7 D-60438 Frankfurt am Main Germany
| | - Kathrin Dörr
- Institut für Organische Chemie und Chemische Biologie Goethe-Universität Frankfurt Max-von-Laue-Str. 7 D-60438 Frankfurt am Main Germany
| | - Elisabeth Kalden
- Institut für Organische Chemie und Chemische Biologie Goethe-Universität Frankfurt Max-von-Laue-Str. 7 D-60438 Frankfurt am Main Germany
| | - Mirco Zeiger
- Institut für Organische Chemie und Chemische Biologie Goethe-Universität Frankfurt Max-von-Laue-Str. 7 D-60438 Frankfurt am Main Germany
| | - Abdullah Akpinar
- Institut für Organische Chemie und Chemische Biologie Goethe-Universität Frankfurt Max-von-Laue-Str. 7 D-60438 Frankfurt am Main Germany
| | - Robert Berger
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 35032 Marburg Germany
| | - Michael W. Göbel
- Institut für Organische Chemie und Chemische Biologie Goethe-Universität Frankfurt Max-von-Laue-Str. 7 D-60438 Frankfurt am Main Germany
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2
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Romanholo PVV, Razzino CA, Raymundo-Pereira PA, Prado TM, Machado SAS, Sgobbi LF. Biomimetic electrochemical sensors: New horizons and challenges in biosensing applications. Biosens Bioelectron 2021; 185:113242. [PMID: 33915434 DOI: 10.1016/j.bios.2021.113242] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/05/2021] [Accepted: 04/07/2021] [Indexed: 12/12/2022]
Abstract
The urge to meet the ever-growing needs of sensing technology has spurred research to look for new alternatives to traditional analytical methods. In this scenario, the glucometer is the flagship of commercial electrochemical sensing platforms, combining selectivity, reliability and portability. However, other types of enzyme-based biosensors seldom achieve the market, in spite of the large and increasing number of publications. The reasons behind their commercial limitations concern enzyme denaturation, and the high costs associated with procedures for their extraction and purification. In this sense, biomimetic materials that seek to imitate the desired properties of natural enzymes and biological systems have come out as an appealing path for robust and sensitive electrochemical biosensors. We herein portray the historical background of these biomimicking materials, covering from their beginnings until the most impactful applications in the field of electrochemical sensing platforms. Throughout the discussion, we present and critically appraise the major benefits and the most significant drawbacks offered by the bioinspired systems categorized as Nanozymes, Synzymes, Molecularly Imprinted Polymers (MIPs), Nanochannels, and Metal Complexes. Innovative strategies of fabrication and challenging applications are further reviewed and evaluated. In the end, we ponder over the prospects of this emerging field, assessing the most critical issues that shall be faced in the coming decade.
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Affiliation(s)
- Pedro V V Romanholo
- Instituto de Química, Universidade Federal de Goiás, Goiânia, GO, 74690-900, Brazil
| | - Claudia A Razzino
- Instituto de Pesquisa e Desenvolvimento, Universidade Do Vale Do Paraíba, São José Dos Campos, SP, 12244-000, Brazil
| | | | - Thiago M Prado
- Instituto de Química de São Carlos, Universidade de São Paulo, São Carlos, SP, 13566-590, Brazil
| | - Sergio A S Machado
- Instituto de Química de São Carlos, Universidade de São Paulo, São Carlos, SP, 13566-590, Brazil
| | - Livia F Sgobbi
- Instituto de Química, Universidade Federal de Goiás, Goiânia, GO, 74690-900, Brazil.
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3
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Oliveira GHC, Ramos LM, de Paiva RKC, Passos STA, Simões MM, Machado F, Correa JR, Neto BAD. Synthetic enzyme-catalyzed multicomponent reaction for Isoxazol-5(4 H)-one Syntheses, their properties and biological application; why should one study mechanisms? Org Biomol Chem 2021; 19:1514-1531. [PMID: 33332518 DOI: 10.1039/d0ob02114h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this work, we describe the application of a synthetic enzyme (synzyme) as the catalyst to promote the multicomponent synthesis of isoxazol-5(4H)-one derivatives. The catalytic system could be used up to 15 times without any notable loss of its activity. Some derivatives showed fluorescence and their photophysical data were evaluated. The mechanism of the reaction was, for the first time, investigated and, among the three reaction pathway possibilities, only one was operating under the developed conditions. ESI-MS(/MS) allowed for both the simultaneous monitoring of the multicomponent reaction (MCR) and the proposition of a kinetic model to explain the transformation. The kinetic model pointed firmly to only one reaction pathway and helped to discard the other two possibilities. The antimicrobial abilities of all synthesized derivatives against Gram-positive and Gram-negative strains were also evaluated. The abilities of functional chromophores (fluorescent compounds) as live cell-imaging probes were verified and one of the multicomponent adducts could stain early endosomes selectively in bioimaging experiments.
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Affiliation(s)
- Gabriela H C Oliveira
- Laboratório de Química Medicinal e Síntese Orgânica (LaQuiMeSO), Câmpus de Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, CP 459, Anápolis-GO, Brazil.
| | - Luciana M Ramos
- Laboratório de Química Medicinal e Síntese Orgânica (LaQuiMeSO), Câmpus de Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, CP 459, Anápolis-GO, Brazil.
| | - Raíssa K C de Paiva
- Laboratório de Química Medicinal e Síntese Orgânica (LaQuiMeSO), Câmpus de Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, CP 459, Anápolis-GO, Brazil.
| | - Saulo T A Passos
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitario Darcy Ribeiro, Brasília, Distrito Federal 70904-900, Brazil.
| | - Marina M Simões
- Laboratório de Microscopia e Microanálise, Departamento de Biologia Celular, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, Brazil
| | - Fabricio Machado
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitario Darcy Ribeiro, Brasília, Distrito Federal 70904-900, Brazil. and School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - José R Correa
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitario Darcy Ribeiro, Brasília, Distrito Federal 70904-900, Brazil. and Laboratório de Microscopia e Microanálise, Departamento de Biologia Celular, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, Brazil
| | - Brenno A D Neto
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitario Darcy Ribeiro, Brasília, Distrito Federal 70904-900, Brazil.
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4
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Chevalier Y, Lock Toy Ki Y, Herrero C, le Nouën D, Mahy JP, Goddard JP, Avenier F. Characterization in aqueous medium of an FMN semiquinone radical stabilized by the enzyme-like microenvironment of a modified polyethyleneimine. Org Biomol Chem 2020; 18:4386-4389. [PMID: 32469356 DOI: 10.1039/d0ob00864h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
The elusive flavin semiquinone intermediate found in flavoproteins such as cryptochromes has been obtained in aqueous solution by single electron reduction of the natural FMN cofactor using sodium ascorbate. This species was formed in the local hydrophobic microenvironment of a modified polyethyleneimine and characterized by UV-Visible, fluorescence and EPR spectroscopies.
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Affiliation(s)
- Yoan Chevalier
- ICMMO, UMR CNRS 8182, Université Paris Saclay, rue du doyen Georges Poitou, 91405 Orsay, France.
| | - Yvette Lock Toy Ki
- LIMA, UMR CNRS 7042, Université de Haute-Alsace, Université de Strasbourg, 68100 Mulhouse, France.
| | - Christian Herrero
- ICMMO, UMR CNRS 8182, Université Paris Saclay, rue du doyen Georges Poitou, 91405 Orsay, France.
| | - Didier le Nouën
- LIMA, UMR CNRS 7042, Université de Haute-Alsace, Université de Strasbourg, 68100 Mulhouse, France.
| | - Jean-Pierre Mahy
- ICMMO, UMR CNRS 8182, Université Paris Saclay, rue du doyen Georges Poitou, 91405 Orsay, France.
| | - Jean-Philippe Goddard
- LIMA, UMR CNRS 7042, Université de Haute-Alsace, Université de Strasbourg, 68100 Mulhouse, France.
| | - Frédéric Avenier
- ICMMO, UMR CNRS 8182, Université Paris Saclay, rue du doyen Georges Poitou, 91405 Orsay, France.
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5
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Naim A, Chevalier Y, Bouzidi Y, Gairola P, Mialane P, Dolbecq A, Avenier F, Mahy JP. Aerobic oxidation catalyzed by polyoxometalates associated to an artificial reductase at room temperature and in water. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00442a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Four polyoxometalates (POMs) were combined with an artificial reductase based on polyethyleneimine (PEI) and flavin mononucleotide (FMN) which is capable of delivering single electrons upon addition of nicotinamide adenine dinucleotide (NADH).
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Affiliation(s)
- Ahmad Naim
- LCBB
- ICMMO
- Univ Paris-Sud
- Université Paris Saclay
- 91405 Orsay
| | - Yoan Chevalier
- LCBB
- ICMMO
- Univ Paris-Sud
- Université Paris Saclay
- 91405 Orsay
| | - Younes Bouzidi
- LCBB
- ICMMO
- Univ Paris-Sud
- Université Paris Saclay
- 91405 Orsay
| | | | - Pierre Mialane
- Université Paris Saclay
- UVSQ
- CNRS
- UMR 8180
- Institut Lavoisier de Versailles
| | - Anne Dolbecq
- Université Paris Saclay
- UVSQ
- CNRS
- UMR 8180
- Institut Lavoisier de Versailles
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6
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Chevalier Y, Lock Toy Ki Y, le Nouen D, Mahy JP, Goddard JP, Avenier F. Aerobic Baeyer-Villiger Oxidation Catalyzed by a Flavin-Containing Enzyme Mimic in Water. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yoan Chevalier
- Univ Paris Sud; Université Paris Saclay; LCBB, ICMMO, UMR CNRS 8182; 91405 Orsay France
| | - Yvette Lock Toy Ki
- Université de Haute-Alsace; Université de Strasbourg; CNRS, LIMA UMR 7042; 68100 Mulhouse France
| | - Didier le Nouen
- Université de Haute-Alsace; Université de Strasbourg; CNRS, LIMA UMR 7042; 68100 Mulhouse France
| | - Jean-Pierre Mahy
- Univ Paris Sud; Université Paris Saclay; LCBB, ICMMO, UMR CNRS 8182; 91405 Orsay France
| | - Jean-Philippe Goddard
- Université de Haute-Alsace; Université de Strasbourg; CNRS, LIMA UMR 7042; 68100 Mulhouse France
| | - Frédéric Avenier
- Univ Paris Sud; Université Paris Saclay; LCBB, ICMMO, UMR CNRS 8182; 91405 Orsay France
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7
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Chevalier Y, Lock Toy Ki Y, le Nouen D, Mahy JP, Goddard JP, Avenier F. Aerobic Baeyer-Villiger Oxidation Catalyzed by a Flavin-Containing Enzyme Mimic in Water. Angew Chem Int Ed Engl 2018; 57:16412-16415. [PMID: 30358055 DOI: 10.1002/anie.201810124] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 10/11/2018] [Indexed: 01/16/2023]
Abstract
Direct incorporation of molecular oxygen into small organic molecules has attracted much attention for the development of new environmentally friendly oxidation processes. In line with this approach, bioinspired systems mimicking enzyme activities are of particular interest since they may perform catalysis in aqueous media. Demonstrated herein is the incorporation of a natural flavin cofactor (FMN) into the specific microenvironment of a water-soluble polymer which allows the efficient reduction of the FMN by NADH in aqueous solution. Once reduced, this artificial flavoenzyme can then activate molecular dioxygen under aerobic conditions and result in the Baeyer-Villiger reaction at room temperature in water.
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Affiliation(s)
- Yoan Chevalier
- Univ Paris Sud, Université Paris Saclay, LCBB, ICMMO, UMR CNRS 8182, 91405, Orsay, France
| | - Yvette Lock Toy Ki
- Université de Haute-Alsace, Université de Strasbourg, CNRS, LIMA UMR 7042, 68100, Mulhouse, France
| | - Didier le Nouen
- Université de Haute-Alsace, Université de Strasbourg, CNRS, LIMA UMR 7042, 68100, Mulhouse, France
| | - Jean-Pierre Mahy
- Univ Paris Sud, Université Paris Saclay, LCBB, ICMMO, UMR CNRS 8182, 91405, Orsay, France
| | - Jean-Philippe Goddard
- Université de Haute-Alsace, Université de Strasbourg, CNRS, LIMA UMR 7042, 68100, Mulhouse, France
| | - Frédéric Avenier
- Univ Paris Sud, Université Paris Saclay, LCBB, ICMMO, UMR CNRS 8182, 91405, Orsay, France
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8
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Serrano-Luginbühl S, Ruiz-Mirazo K, Ostaszewski R, Gallou F, Walde P. Soft and dispersed interface-rich aqueous systems that promote and guide chemical reactions. Nat Rev Chem 2018. [DOI: 10.1038/s41570-018-0042-6] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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9
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della Sala F, Chen JLY, Ranallo S, Badocco D, Pastore P, Ricci F, Prins LJ. Reversible Electrochemical Modulation of a Catalytic Nanosystem. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Flavio della Sala
- Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
| | - Jack L.-Y. Chen
- Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
| | - Simona Ranallo
- Chemistry Department; University of Rome Tor Vergata; Via della Ricerca Scientifica 00133 Rome Italy
| | - Denis Badocco
- Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
| | - Paolo Pastore
- Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
| | - Francesco Ricci
- Chemistry Department; University of Rome Tor Vergata; Via della Ricerca Scientifica 00133 Rome Italy
| | - Leonard J. Prins
- Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
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10
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Della Sala F, Chen JLY, Ranallo S, Badocco D, Pastore P, Ricci F, Prins LJ. Reversible Electrochemical Modulation of a Catalytic Nanosystem. Angew Chem Int Ed Engl 2016; 55:10737-40. [PMID: 27468981 DOI: 10.1002/anie.201605309] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Indexed: 12/21/2022]
Abstract
A catalytic system based on monolayer-functionalized gold nanoparticles (Au NPs) that can be electrochemically modulated and reversibly activated is reported. The catalytic activity relies on the presence of metal ions (Cd(2+) and Cu(2+) ), which can be complexed by the nanoparticle-bound monolayer. This activates the system towards the catalytic cleavage of 2-hydroxypropyl-p-nitrophenyl phosphate (HPNPP), which can be monitored by UV/Vis spectroscopy. It is shown that Cu(2+) metal ions can be delivered to the system by applying an oxidative potential to an electrode on which Cu(0) was deposited. By exploiting the different affinity of Cd(2+) and Cu(2+) ions for the monolayer, it was also possible to upregulate the catalytic activity after releasing Cu(2+) from an electrode into a solution containing Cd(2+) . Finally, it is shown that the activity of this supramolecular nanosystem can be reversibly switched on or off by oxidizing/reducing Cu/Cu(2+) ions under controlled conditions.
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Affiliation(s)
- Flavio Della Sala
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Jack L-Y Chen
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Simona Ranallo
- Chemistry Department, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133, Rome, Italy
| | - Denis Badocco
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Paolo Pastore
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Francesco Ricci
- Chemistry Department, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133, Rome, Italy.
| | - Leonard J Prins
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy.
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11
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Bím D, Svobodová E, Eigner V, Rulíšek L, Hodačová J. Copper(II) and Zinc(II) Complexes of Conformationally Constrained Polyazamacrocycles as Efficient Catalysts for RNA Model Substrate Cleavage in Aqueous Solution at Physiological pH. Chemistry 2016; 22:10426-37. [DOI: 10.1002/chem.201601175] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Daniel Bím
- Department of Organic Chemistry, Faculty of Chemical Technology; University of Chemistry and Technology; Technická 5 166 28 Prague 6 Czech Republic), Fax: (+420) 220-444-288
- Institute of Organic Chemistry and Biochemistry; v.v.i. and Gilead Sciences Research Center, Academy of Sciences of the Czech Republic; Flemingovo náměstí 2 166 10 Prague 6 Czech Republic
| | - Eva Svobodová
- Department of Organic Chemistry, Faculty of Chemical Technology; University of Chemistry and Technology; Technická 5 166 28 Prague 6 Czech Republic), Fax: (+420) 220-444-288
| | - Václav Eigner
- Department of Solid State Chemistry, Faculty of Chemical Technology; University of Chemistry and Technology; Technická 5 166 28 Prague 6 Czech Republic
| | - Lubomír Rulíšek
- Institute of Organic Chemistry and Biochemistry; v.v.i. and Gilead Sciences Research Center, Academy of Sciences of the Czech Republic; Flemingovo náměstí 2 166 10 Prague 6 Czech Republic
| | - Jana Hodačová
- Department of Organic Chemistry, Faculty of Chemical Technology; University of Chemistry and Technology; Technická 5 166 28 Prague 6 Czech Republic), Fax: (+420) 220-444-288
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12
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Cheaib K, Roux Y, Herrero C, Trehoux A, Avenier F, Mahy JP. Reduction of a tris(picolyl)amine copper(ii) complex by a polymeric flavo-reductase model in water. Dalton Trans 2016; 45:18098-18101. [DOI: 10.1039/c6dt03710k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An artificial reductase, made by incorporation of FMN cofactors into the locally hydrophobic micro-environment of a modified polyethyleneimine, catalytically reduces Cu(ii) complexes in water.
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Affiliation(s)
- K. Cheaib
- Laboratoire de Chimie Bioorganique et Bioinorganique
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR CNRS 8182)
- Univ Paris Sud
- Université Paris Saclay
- 91405 Orsay
| | - Y. Roux
- Laboratoire de Chimie Bioorganique et Bioinorganique
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR CNRS 8182)
- Univ Paris Sud
- Université Paris Saclay
- 91405 Orsay
| | - C. Herrero
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR CNRS 8182)
- Univ Paris Sud
- Université Paris Saclay
- 91405 Orsay
- France
| | - A. Trehoux
- Laboratoire de Chimie Bioorganique et Bioinorganique
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR CNRS 8182)
- Univ Paris Sud
- Université Paris Saclay
- 91405 Orsay
| | - F. Avenier
- Laboratoire de Chimie Bioorganique et Bioinorganique
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR CNRS 8182)
- Univ Paris Sud
- Université Paris Saclay
- 91405 Orsay
| | - J.-P. Mahy
- Laboratoire de Chimie Bioorganique et Bioinorganique
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR CNRS 8182)
- Univ Paris Sud
- Université Paris Saclay
- 91405 Orsay
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13
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Bellettini IC, Witt MA, Borsali R, Minatti E, Rubira AF, Muniz EC. PS-b-PAA nanovesicles coated by modified PEIs bearing hydrophobic and hydrophilic groups. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.01.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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14
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Roux Y, Ricoux R, Avenier F, Mahy JP. Bio-inspired electron-delivering system for reductive activation of dioxygen at metal centres towards artificial flavoenzymes. Nat Commun 2015; 6:8509. [PMID: 26419885 PMCID: PMC4598860 DOI: 10.1038/ncomms9509] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Accepted: 08/28/2015] [Indexed: 02/02/2023] Open
Abstract
Development of artificial systems, capable of delivering electrons to metal-based catalysts for the reductive activation of dioxygen, has been proven very difficult for decades, constituting a major scientific lock for the elaboration of environmentally friendly oxidation processes. Here we demonstrate that the incorporation of a flavin mononucleotide (FMN) in a water-soluble polymer, bearing a locally hydrophobic microenvironment, allows the efficient reduction of the FMN by NADH. This supramolecular entity is then capable of catalysing a very fast single-electron reduction of manganese(III) porphyrin by splitting the electron pair issued from NADH. This is fully reminiscent of the activity of natural reductases such as the cytochrome P450 reductases with kinetic parameters, which are three orders of magnitude faster compared with other artificial systems. Finally, we show as a proof of concept that the reduced manganese porphyrin activates dioxygen and catalyses the oxidation of organic substrates in water.
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Affiliation(s)
- Yoann Roux
- Laboratoire de Chimie Bioorganique et Bioinorganique, Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR 8182), Univ Paris Sud, Université Paris Saclay, rue du doyen Georges Poitou, 91405 Orsay, France
| | - Rémy Ricoux
- Laboratoire de Chimie Bioorganique et Bioinorganique, Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR 8182), Univ Paris Sud, Université Paris Saclay, rue du doyen Georges Poitou, 91405 Orsay, France
| | - Frédéric Avenier
- Laboratoire de Chimie Bioorganique et Bioinorganique, Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR 8182), Univ Paris Sud, Université Paris Saclay, rue du doyen Georges Poitou, 91405 Orsay, France
| | - Jean-Pierre Mahy
- Laboratoire de Chimie Bioorganique et Bioinorganique, Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR 8182), Univ Paris Sud, Université Paris Saclay, rue du doyen Georges Poitou, 91405 Orsay, France
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15
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Guo N, Zhong JY, Chen SL, Liu JQ, Min Q, Shi RX. Experimental and theoretical studies of hydrolysis of nerve agent sarin by binuclear zinc biomimetic catalysts. Chem Phys 2015. [DOI: 10.1016/j.chemphys.2015.05.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Abstract
In many origin-of-life scenarios, inorganic materials, such as FeS or mineral clays, play an important role owing to their ability to concentrate and select small organic molecules on their surface and facilitate their chemical transformations into new molecules. However, considering that life is made up of organic matter, at a certain stage during the evolution the role of the inorganic material must have been taken over by organic molecules. How this exactly happened is unclear, and, indeed, a big gap separates the rudimentary level of organization involving inorganic materials and the complex organization of cells, which are the building blocks of life. Over the past years, we have extensively studied the interaction of small molecules with monolayer-protected gold nanoparticles (Au NPs) for the purpose of developing innovative sensing and catalytic systems. During the course of these studies, we realized that the functional role of this system is very similar to that typically attributed to inorganic surfaces in the early stages of life, with the important being difference that the functional properties (molecular recognition, catalysis, signaling, adaptation) originate entirely from the organic monolayer rather than the inorganic support. This led us to the proposition that this system may serve as a model that illustrates how the important role of inorganic surfaces in dictating chemical processes in the early stages of life may have been taken over by organic matter. Here, we reframe our previously obtained results in the context of the origin-of-life question. The following functional roles of Au NPs will be discussed: the ability to concentrate small molecules and create different local populations, the ability to catalyze the chemical transformation of bound molecules, and, finally, the ability to install rudimentary signaling pathways and display primitive adaptive behavior. In particular, we will show that many of the functional properties of the system originate from two features: the presence of metal ions that are complexed in the organic monolayer and the multivalent nature of the system. Complexed metal ions play an important role in determining the affinity and selectivity of the interaction with small molecules, but serve also as regulatory elements for determining how many molecules are bound simultaneously. Importantly, neighboring metal ion complexes also create catalytic pockets in which two metal ions cooperatively catalyze the cleavage of an RNA-model compound. The multivalent nature of the system permits multiple noncovalent interactions with small molecules that enhances the affinity, but is also at the basis of simple signal transduction pathways and adaptive behavior.
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Affiliation(s)
- Leonard J. Prins
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
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17
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Salvio R. The guanidinium unit in the catalysis of phosphoryl transfer reactions: from molecular spacers to nanostructured supports. Chemistry 2015; 21:10960-71. [PMID: 25940903 DOI: 10.1002/chem.201500789] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Examples of guanidinium-based artificial phosphodiesterases are illustrated in this review article. A wide set of collected catalytic systems are presented, from the early examples to the most recent developments of the use of this unit in the design of supramolecular catalysts. Special attention is dedicated to illustrate the operating catalytic mechanism and the role of guanidine/ium units in the catalysis. One or more of these units can act by themselves or in conjunction with other active units. The analogy with the mechanism of enzymatic systems is presented and discussed. In the last part of this overview, recent examples of guanidinophosphodiesterases based on nanostructured supports are reported, namely gold-monolayer-protected clusters and polymer brushes grafted to silica nanoparticles. The issue of the dependence of the catalytic performance on the preorganization of the spacer is tackled and discussed in terms of effective molarity, a parameter that can be taken as a quantitative measurement of this preorganization for both conventional molecular linker and nanosized supports.
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Affiliation(s)
- Riccardo Salvio
- Dipartimento di Chimica and IMC-CNR, Sezione Meccanismi di Reazione, La Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 (Italy).
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18
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The effect of chain size on the modeling of second sphere effects in biomimetic complexes. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2014.11.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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19
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Song S, Qian Y, Wu Q, Fu P, Wang Z. Properties of Fluids Composed of Polyelectrolyte and Double-Chain Anionic Surfactant: Branched Polyethyleneimine and Sodium bis(2-ethylhexyl) Sulfosuccinate. J DISPER SCI TECHNOL 2014. [DOI: 10.1080/01932691.2013.860034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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20
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Raynal M, Ballester P, Vidal-Ferran A, van Leeuwen PWNM. Supramolecular catalysis. Part 2: artificial enzyme mimics. Chem Soc Rev 2013; 43:1734-87. [PMID: 24365792 DOI: 10.1039/c3cs60037h] [Citation(s) in RCA: 649] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The design of artificial catalysts able to compete with the catalytic proficiency of enzymes is an intense subject of research. Non-covalent interactions are thought to be involved in several properties of enzymatic catalysis, notably (i) the confinement of the substrates and the active site within a catalytic pocket, (ii) the creation of a hydrophobic pocket in water, (iii) self-replication properties and (iv) allosteric properties. The origins of the enhanced rates and high catalytic selectivities associated with these properties are still a matter of debate. Stabilisation of the transition state and favourable conformations of the active site and the product(s) are probably part of the answer. We present here artificial catalysts and biomacromolecule hybrid catalysts which constitute good models towards the development of truly competitive artificial enzymes.
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Affiliation(s)
- Matthieu Raynal
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain.
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21
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Levi N, Neumann R. Diastereoselective and Enantiospecific Direct Reductive Amination in Water Catalyzed by Palladium Nanoparticles Stabilized by Polyethyleneimine Derivatives. ACS Catal 2013. [DOI: 10.1021/cs4005453] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Noam Levi
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel 76100
| | - Ronny Neumann
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel 76100
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22
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Sá MM, Ferreira M, Caramori GF, Zaramello L, Bortoluzzi AJ, Faggion D, Domingos JB. Investigating the Ritter Type Reaction of α-Methylene-β-hydroxy Esters in Acidic Medium: Evidence for the Intermediacy of an Allylic Cation. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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23
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Zhao M, Wang HB, Ji LN, Mao ZW. Insights into metalloenzyme microenvironments: biomimetic metal complexes with a functional second coordination sphere. Chem Soc Rev 2013; 42:8360-75. [DOI: 10.1039/c3cs60162e] [Citation(s) in RCA: 149] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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24
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Ullrich S, Nazir Z, Büsing A, Scheffer U, Wirth D, Bats JW, Dürner G, Göbel MW. Cleavage of phosphodiesters and of DNA by a bis(guanidinium)naphthol acting as a metal-free anion receptor. Chembiochem 2011; 12:1223-9. [PMID: 21500334 DOI: 10.1002/cbic.201100022] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Indexed: 11/07/2022]
Abstract
Phosphoric acid diesters form anions at neutral pH. As a result of charge repulsion they are notoriously resistant to hydrolysis. Nucleophilic attack, however, can be promoted by different types of electrophilic catalysts that bind to the anions and reduce their negative charge density. Although in most cases phosphodiester-cleaving enzymes and synthetic catalysts rely on Lewis acidic metal ions, some exploit the guanidinium residues of arginine as metal-free electrophiles. Here we report that a combination of two guanidines and a hydroxy group yields highly reactive receptor molecules that can attack a broad range of phosphodiester substrates by nucleophilic displacement at phosphorus in a single-turnover mode. Some stable O-phosphates were isolated and characterized further by NMR spectroscopy. The bis(guanidinium)naphthols also cleave plasmid DNA, presumably by a transphosphorylation mechanism.
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Affiliation(s)
- Stefan Ullrich
- Institut für Organische Chemie und Chemische Biologie, Johann Wolfgang Goethe-Universität Frankfurt, Frankfurt am Main, Germany
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25
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Zaupa G, Mora C, Bonomi R, Prins LJ, Scrimin P. Catalytic self-assembled monolayers on Au nanoparticles: the source of catalysis of a transphosphorylation reaction. Chemistry 2011; 17:4879-89. [PMID: 21404344 DOI: 10.1002/chem.201002590] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2010] [Revised: 11/22/2010] [Indexed: 11/09/2022]
Abstract
The catalytic activity of a series of Au monolayer protected colloids (Au MPCs) containing different ratios of the catalytic unit triazacyclononane⋅Zn(II) (TACN⋅Zn(II) ) and an inert triethyleneglycol (TEG) unit was measured. The catalytic self-assembled monolayers (SAMs) are highly efficient in the transphosphorylation of 2-hydroxy propyl 4-nitrophenyl phosphate (HPNPP), an RNA model substrate, exhibiting maximum values for the Michaelis-Menten parameters k(cat) and K(M) of 6.7×10(-3) s(-1) and 3.1×10(-4) M, respectively, normalized per catalytic unit. Despite the structural simplicity of the catalytic units, this renders these nanoparticles among the most active catalysts known for this substrate. Both k(cat) and K(M) parameters were determined as a function of the mole fraction of catalytic unit (x(1)) in the SAM. Within this nanoparticle (NP) series, k(cat) increases up till x(1) ≈0.4, after which it remains constant and K(M) decreases exponentially over the range studied. A theoretical analysis demonstrated that these trends are an intrinsic property of catalytic SAMs, in which catalysis originates from the cooperative effect between two neighboring catalytic units. The multivalency of the system causes an increase of the number of potential dimeric catalytic sites composed of two catalytic units as a function of the x(1) , which causes an apparent increase in binding affinity (decrease in K(M)). Simultaneously, the k(cat) value is determined by the number of substrate molecules bound at saturation. For values of x(1) >0.4, isolated catalytic units are no longer present and all catalytic units are involved in catalysis at saturation. Importantly, the observed trends are indicative of a random distribution of the thiols in the SAM. As indicated by the theoretical analysis, and confirmed by a control experiment, in case of clustering both k(cat) and K(M) values remain constant over the entire range of x(1) .
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Affiliation(s)
- Giovanni Zaupa
- Department of Chemical Sciences and CNR-ITM, Padova Section, Via Marzolo 1, 35131 Padova, Italy
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26
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Gaynanova GA, Yurina AV, Lukashenko SS, Zhil’tsova EP, Zakharova LY, Kudryavtseva LA, Konovalov AI. Aggregation and catalytic activity of 2-hydroxybenzylated polyethyleneimines in water-organic solutions. Russ Chem Bull 2010. [DOI: 10.1007/s11172-010-0243-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Signori AM, Santos KDO, Eising R, Albuquerque BL, Giacomelli FC, Domingos JB. Formation of catalytic silver nanoparticles supported on branched polyethyleneimine derivatives. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:17772-17779. [PMID: 20886902 DOI: 10.1021/la103408s] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A new and straightforward method for screening highly catalytically active silver nanoparticle-polymer composites derived from branched polyethyleneimine (PEI) is reported. The one-step systematic derivatization of the PEI scaffold with alkyl (butyl or octyl) and ethanolic groups led to a structural diversity correlated to the stabilization of silver nanoparticles and catalysis. Analysis of PEI derivative libraries identified a silver nanoparticle-polymer composite that was able to efficiently catalyze the p-nitrophenol reduction by NaBH(4) in water with a rate constant normalized to the surface area of the nanoparticles per unit volume (k(1)) of 0.57 s(-1) m(-2) L. Carried out in the presence of excess NaBH(4), the catalytic reaction was observed to follow pseudo-first-order kinetics and the apparent rate constant was linearly dependent on the total surface area of the silver nanoparticles (Ag-NPs), indicating that catalysis takes place on the surface of the nanoparticles. All reaction kinetics presented induction periods, which were dependent on the concentration of substrates, the total surface of the nanoparticles, and the polymer composition. All data indicated that this induction time is related to the resistance to substrate diffusion through the polymer support. Hydrophobic effects are also assumed to play an important role in the catalysis, through an increase in the local substrate concentration.
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Affiliation(s)
- Aline M Signori
- Laboratory of Biomimetic Catalysis, Chemistry Department, Universidade Federal de Santa Catarina, Campus Trindade, Florianópolis-SC 88040-900, Brazil
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28
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Corona-Martínez DO, Taran O, Yatsimirsky AK. Mechanism of general acid–base catalysis in transesterification of an RNA model phosphodiester studied with strongly basic catalysts. Org Biomol Chem 2010; 8:873-80. [DOI: 10.1039/b920398b] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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29
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Avenier F, Hollfelder F. Combining Medium Effects and Cofactor Catalysis: Metal-Coordinated Synzymes Accelerate Phosphate Transfer by 108. Chemistry 2009; 15:12371-80. [DOI: 10.1002/chem.200802616] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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30
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Lindgren N, Geiger L, Razkin J, Schmuck C, Baltzer L. Downsizing of Enzymes by Chemical Methods: Arginine Mimics with Low pKa Values Increase the Rates of Hydrolysis of RNA Model Compounds. Angew Chem Int Ed Engl 2009; 48:6722-5. [DOI: 10.1002/anie.200900595] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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31
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Lindgren N, Geiger L, Razkin J, Schmuck C, Baltzer L. Downsizing of Enzymes by Chemical Methods: Arginine Mimics with Low pKa Values Increase the Rates of Hydrolysis of RNA Model Compounds. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200900595] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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32
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Bodsgard BR, Clark RW, Ehrbar AW, Burstyn JN. Silica-bound copper(ii)triazacyclononane as a phosphate esterase: effect of linker length and surface hydrophobicity. Dalton Trans 2009:2365-73. [DOI: 10.1039/b811398j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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33
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Van Vliet LD, Chapman MR, Avenier F, Kitson CZ, Hollfelder F. Relating chemical and biological diversity space: a tunable system for efficient gene transfection. Chembiochem 2008; 9:1960-7. [PMID: 18655081 DOI: 10.1002/cbic.200800003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Polyethyleneimine (PEI), a well-established nonviral transfection reagent, was combinatorially modified with varying proportions of methyl, benzyl, and n-dodecyl groups to create a library of 435 derivatized polymers. Screening of this library for transfection, DNA binding, and toxicity allows systematic correlation of the biological properties of our polymers to their derivatizations. Combinations of derivatizations bring about a 100-fold variation in transfection efficiency between library members. The best PEI derivatives exhibit increases in transfection efficiency of more than 80-fold over unmodified PEI (up to 28+/-7 % of cells transfected) and rival commercial reagents such as Lipofectamine 2000 (21+/-10 %) and JetPEI (32+/-5.0 %). In addition, we can identify compounds that are specifically tuned for efficient transfection in CHO-K1 over Ishikawa cells and vice versa, demonstrating that the approach can lead to cell-type selectivity of at least one order of magnitude. This work demonstrates that multivalent derivatization of a polymeric framework can create functional diversity substantially greater than the structural diversity of the derivatization building blocks and suggests an approach to a better understanding of the molecular underpinnings of transfection as well as their exploitation.
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Affiliation(s)
- Liisa D Van Vliet
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA, UK
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34
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O'Brien PJ, Lassila JK, Fenn TD, Zalatan JG, Herschlag D. Arginine coordination in enzymatic phosphoryl transfer: evaluation of the effect of Arg166 mutations in Escherichia coli alkaline phosphatase. Biochemistry 2008; 47:7663-72. [PMID: 18627128 DOI: 10.1021/bi800545n] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Arginine residues are commonly found in the active sites of enzymes catalyzing phosphoryl transfer reactions. Numerous site-directed mutagenesis experiments establish the importance of these residues for efficient catalysis, but their role in catalysis is not clear. To examine the role of arginine residues in the phosphoryl transfer reaction, we have measured the consequences of mutations to arginine 166 in Escherichia coli alkaline phosphatase on hydrolysis of ethyl phosphate, on individual reaction steps in the hydrolysis of the covalent enzyme-phosphoryl intermediate, and on thio substitution effects. The results show that the role of the arginine side chain extends beyond its positive charge, as the Arg166Lys mutant is as compromised in activity as Arg166Ser. Through measurement of individual reaction steps, we construct a free energy profile for the hydrolysis of the enzyme-phosphate intermediate. This analysis indicates that the arginine side chain strengthens binding by approximately 3 kcal/mol and provides an additional 1-2 kcal/mol stabilization of the chemical transition state. A 2.1 A X-ray diffraction structure of Arg166Ser AP is presented, which shows little difference in enzyme structure compared to the wild-type enzyme but shows a significant reorientation of the bound phosphate. Altogether, these results support a model in which the arginine contributes to catalysis through binding interactions and through additional transition state stabilization that may arise from complementarity of the guanidinum group to the geometry of the trigonal bipyramidal transition state.
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Affiliation(s)
- Patrick J O'Brien
- Department of Biochemistry, Stanford University, Stanford, California 94305, USA
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35
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Faria AC, Mello RS, Orth ES, Nome F. Hydrolysis of benzoic anhydride mediated by ionenes and micelles. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.molcata.2008.04.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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36
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Supramolecular catalytic systems based on dimeric pyrimidinic surfactants and polyethyleneimine. MENDELEEV COMMUNICATIONS 2008. [DOI: 10.1016/j.mencom.2008.05.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Zaupa G, Scrimin P, Prins LJ. Origin of the Dendritic Effect in Multivalent Enzyme-Like Catalysts. J Am Chem Soc 2008; 130:5699-709. [DOI: 10.1021/ja7113213] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Giovanni Zaupa
- Department of Chemical Sciences, University of Padova, and ITM-CNR Padova section, Via Marzolo 1, 35131 Padova, Italy
| | - Paolo Scrimin
- Department of Chemical Sciences, University of Padova, and ITM-CNR Padova section, Via Marzolo 1, 35131 Padova, Italy
| | - Leonard J. Prins
- Department of Chemical Sciences, University of Padova, and ITM-CNR Padova section, Via Marzolo 1, 35131 Padova, Italy
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38
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Zakharova LY, Semenov VE, Voronin MA, Valeeva FG, Ibragimova AR, Giniatullin RK, Chernova AV, Kharlamov SV, Kudryavtseva LA, Latypov SK, Reznik VS, Konovalov AI. Nanoreactors Based on Amphiphilic Uracilophanes: Self-Organization and Reactivity Study. J Phys Chem B 2007; 111:14152-62. [DOI: 10.1021/jp076592q] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lucia Ya. Zakharova
- A. E. Arbuzov Institute of Organic and Physical Chemistry of the Russian Academy of Sciences, 8 ul. Akad. Arbuzov, Kazan 420088, and Kazan State Technological University, 68 ul. K. Marx, Kazan 420015, Russia
| | - Vyacheslav E. Semenov
- A. E. Arbuzov Institute of Organic and Physical Chemistry of the Russian Academy of Sciences, 8 ul. Akad. Arbuzov, Kazan 420088, and Kazan State Technological University, 68 ul. K. Marx, Kazan 420015, Russia
| | - Mikhail A. Voronin
- A. E. Arbuzov Institute of Organic and Physical Chemistry of the Russian Academy of Sciences, 8 ul. Akad. Arbuzov, Kazan 420088, and Kazan State Technological University, 68 ul. K. Marx, Kazan 420015, Russia
| | - Farida G. Valeeva
- A. E. Arbuzov Institute of Organic and Physical Chemistry of the Russian Academy of Sciences, 8 ul. Akad. Arbuzov, Kazan 420088, and Kazan State Technological University, 68 ul. K. Marx, Kazan 420015, Russia
| | - Alsu R. Ibragimova
- A. E. Arbuzov Institute of Organic and Physical Chemistry of the Russian Academy of Sciences, 8 ul. Akad. Arbuzov, Kazan 420088, and Kazan State Technological University, 68 ul. K. Marx, Kazan 420015, Russia
| | - Rashid Kh. Giniatullin
- A. E. Arbuzov Institute of Organic and Physical Chemistry of the Russian Academy of Sciences, 8 ul. Akad. Arbuzov, Kazan 420088, and Kazan State Technological University, 68 ul. K. Marx, Kazan 420015, Russia
| | - Alla V. Chernova
- A. E. Arbuzov Institute of Organic and Physical Chemistry of the Russian Academy of Sciences, 8 ul. Akad. Arbuzov, Kazan 420088, and Kazan State Technological University, 68 ul. K. Marx, Kazan 420015, Russia
| | - Sergey V. Kharlamov
- A. E. Arbuzov Institute of Organic and Physical Chemistry of the Russian Academy of Sciences, 8 ul. Akad. Arbuzov, Kazan 420088, and Kazan State Technological University, 68 ul. K. Marx, Kazan 420015, Russia
| | - Lyudmila A. Kudryavtseva
- A. E. Arbuzov Institute of Organic and Physical Chemistry of the Russian Academy of Sciences, 8 ul. Akad. Arbuzov, Kazan 420088, and Kazan State Technological University, 68 ul. K. Marx, Kazan 420015, Russia
| | - Shamil K. Latypov
- A. E. Arbuzov Institute of Organic and Physical Chemistry of the Russian Academy of Sciences, 8 ul. Akad. Arbuzov, Kazan 420088, and Kazan State Technological University, 68 ul. K. Marx, Kazan 420015, Russia
| | - Vladimir S. Reznik
- A. E. Arbuzov Institute of Organic and Physical Chemistry of the Russian Academy of Sciences, 8 ul. Akad. Arbuzov, Kazan 420088, and Kazan State Technological University, 68 ul. K. Marx, Kazan 420015, Russia
| | - Alexander I. Konovalov
- A. E. Arbuzov Institute of Organic and Physical Chemistry of the Russian Academy of Sciences, 8 ul. Akad. Arbuzov, Kazan 420088, and Kazan State Technological University, 68 ul. K. Marx, Kazan 420015, Russia
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