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Kagawa Y, Oohora K, Himiyama T, Suzuki A, Hayashi T. Redox Engineering of Myoglobin by Cofactor Substitution to Enhance Cyclopropanation Reactivity. Angew Chem Int Ed Engl 2024; 63:e202403485. [PMID: 38780472 DOI: 10.1002/anie.202403485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 05/23/2024] [Accepted: 05/23/2024] [Indexed: 05/25/2024]
Abstract
Design of metal cofactor ligands is essential for controlling the reactivity of metalloenzymes. We investigated a carbene transfer reaction catalyzed by myoglobins containing iron porphyrin cofactors with one and two trifluoromethyl groups at peripheral sites (FePorCF3 and FePor(CF3)2, respectively), native heme and iron porphycene (FePc). These four myoglobins show a wide range of Fe(II)/Fe(III) redox potentials in the protein of +147 mV, +87 mV, +42 mV and -198 mV vs. NHE, respectively. Myoglobin reconstituted with FePor(CF3)2 has a more positive potential, which enhances the reactivity of a carbene intermediate with alkenes, and demonstrates superior cyclopropanation of inert alkenes, such as aliphatic and internal alkenes. In contrast, engineered myoglobin reconstituted with FePc has a more negative redox potential, which accelerates the formation of the intermediate, but has low reactivity for inert alkenes. Mechanistic studies indicate that myoglobin with FePor(CF3)2 generates an undetectable active intermediate with a radical character. In contrast, this reaction catalyzed by myoglobin with FePc includes a detectable iron-carbene species with electrophilic character. This finding highlights the importance of redox-focused design of the iron porphyrinoid cofactor in hemoproteins to tune the reactivity of the carbene transfer reaction.
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Affiliation(s)
- Yoshiyuki Kagawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Koji Oohora
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka, 565-0871, Japan
| | - Tomoki Himiyama
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology, Ikeda, Osaka, 563-8577, Japan
| | - Akihiro Suzuki
- National Institute of Technology, Ibaraki College, Hitachinaka, Ibaraki, 312-8508, Japan
| | - Takashi Hayashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
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2
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Zhu W, Huang L, Wu C, Liu L, Li H. Reviewing the evolutive ACQ-to-AIE transformation of photosensitizers for phototheranostics. LUMINESCENCE 2023. [PMID: 38148620 DOI: 10.1002/bio.4655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/21/2023] [Accepted: 11/27/2023] [Indexed: 12/28/2023]
Abstract
Photodynamic therapy (PDT) represents an emerging noninvasive treatment technique for cancers and various nonmalignant diseases, including infections. During the process of PDT, the physical and chemical properties of photosensitizers (PSs) critically determine the effectiveness of PDT. Traditional PSs have made great progress in clinical applications. One of the challenges is that traditional PSs suffer from aggregation-caused quenching (ACQ) due to their discotic structures. Recently, aggregation-induced emission PSs (AIE-PSs) with a twisted propeller-shaped conformation have been widely concerned because of high reactive oxygen species (ROS) generation efficiency, strong fluorescence efficiency, and resistance to photobleaching. However, AIE-PSs also have some disadvantages, such as short absorption wavelengths and insufficient molar absorption coefficient. When the advantages and disadvantages of AIE-PSs and ACQ-PSs are complementary, combining ACQ-PSs and AIE-PSs is a "win-to-win" strategy. As far as we know, the conversion of traditional representative ACQ-PSs to AIE-PSs for phototheranostics has not been reviewed. In the review, we summarize the recent progress on the ACQ-to-AIE transformation of PSs and the strategies to achieve desirable theranostic applications. The review would be helpful to design more efficient ACQ-AIE-PSs in the future and to accelerate the development and clinical application of PDT.
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Affiliation(s)
- Wei Zhu
- College of Textiles Science and Engineering (International Silk Institute), Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, China
- Zhejiang Shengfa Textiles Printing and Dyeing Co., Ltd., Huzhou, China
| | - Lin Huang
- College of Textiles Science and Engineering (International Silk Institute), Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, China
| | - Chao Wu
- College of Textiles Science and Engineering (International Silk Institute), Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, China
| | - Lingli Liu
- Transfar Zhilian Co. Ltd., Hangzhou, China
| | - Haoxuan Li
- Key Laboratory of Eco-Textiles (Ministry of Education), Nonwoven Technology Laboratory, Jiangnan University, Wuxi, China
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Lemon CM. Diversifying the functions of heme proteins with non-porphyrin cofactors. J Inorg Biochem 2023; 246:112282. [PMID: 37320889 DOI: 10.1016/j.jinorgbio.2023.112282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/09/2023] [Accepted: 05/30/2023] [Indexed: 06/17/2023]
Abstract
Heme proteins perform diverse biochemical functions using a single iron porphyrin cofactor. This versatility makes them attractive platforms for the development of new functional proteins. While directed evolution and metal substitution have expanded the properties, reactivity, and applications of heme proteins, the incorporation of porphyrin analogs remains an underexplored approach. This review discusses the replacement of heme with non-porphyrin cofactors, such as porphycene, corrole, tetradehydrocorrin, phthalocyanine, and salophen, and the attendant properties of these conjugates. While structurally similar, each ligand exhibits distinct optical and redox properties, as well as unique chemical reactivity. These hybrids serve as model systems to elucidate the effects of the protein environment on the electronic structure, redox potentials, optical properties, or other features of the porphyrin analog. Protein encapsulation can confer distinct chemical reactivity or selectivity of artificial metalloenzymes that cannot be achieved with the small molecule catalyst alone. Additionally, these conjugates can interfere with heme acquisition and uptake in pathogenic bacteria, providing an inroad to innovative antibiotic strategies. Together, these examples illustrate the diverse functionality that can be achieved by cofactor substitution. The further expansion of this approach will access unexplored chemical space, enabling the development of superior catalysts and the creation of heme proteins with emergent properties.
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Affiliation(s)
- Christopher M Lemon
- Department of Chemistry and Biochemistry, Montana State University, PO Box 173400, Bozeman, MT 59717, United States.
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Liu F, He L, Dong S, Xuan J, Cui Q, Feng Y. Artificial Small Molecules as Cofactors and Biomacromolecular Building Blocks in Synthetic Biology: Design, Synthesis, Applications, and Challenges. Molecules 2023; 28:5850. [PMID: 37570818 PMCID: PMC10421094 DOI: 10.3390/molecules28155850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/25/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
Enzymes are essential catalysts for various chemical reactions in biological systems and often rely on metal ions or cofactors to stabilize their structure or perform functions. Improving enzyme performance has always been an important direction of protein engineering. In recent years, various artificial small molecules have been successfully used in enzyme engineering. The types of enzymatic reactions and metabolic pathways in cells can be expanded by the incorporation of these artificial small molecules either as cofactors or as building blocks of proteins and nucleic acids, which greatly promotes the development and application of biotechnology. In this review, we summarized research on artificial small molecules including biological metal cluster mimics, coenzyme analogs (mNADs), designer cofactors, non-natural nucleotides (XNAs), and non-natural amino acids (nnAAs), focusing on their design, synthesis, and applications as well as the current challenges in synthetic biology.
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Affiliation(s)
- Fenghua Liu
- CAS Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Qingdao 266101, China
- Shandong Energy Institute, 189 Songling Road, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, 189 Songling Road, Qingdao 266101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lingling He
- Department of Bioscience and Bioengineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, China
| | - Sheng Dong
- CAS Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Qingdao 266101, China
- Shandong Energy Institute, 189 Songling Road, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, 189 Songling Road, Qingdao 266101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jinsong Xuan
- Department of Bioscience and Bioengineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, China
| | - Qiu Cui
- CAS Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Qingdao 266101, China
- Shandong Energy Institute, 189 Songling Road, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, 189 Songling Road, Qingdao 266101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yingang Feng
- CAS Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Qingdao 266101, China
- Shandong Energy Institute, 189 Songling Road, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, 189 Songling Road, Qingdao 266101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Mbakara I, Gajewska A, Listkowski A, Kijak M, Nawara K, Kumpulainen T, Vauthey E, Waluk J. Spectroscopic investigation of photophysics and tautomerism of amino- and nitroporphycenes. Phys Chem Chem Phys 2022; 24:29655-29666. [PMID: 36453100 DOI: 10.1039/d2cp04555a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Parent, unsubstituted porphycene and its two derivatives: 2,7,12,17-tetra-n-propylporphycene and 2,7,12,17-tetra-t-butylporphycene were substituted at the meso position with amino and nitro groups. These two families of porphycenes were characterized in detail with respect to their spectral, photophysical, and tautomeric properties. Two trans tautomers of similar energies coexist in the ground electronic state, but only one form dominates in the lowest excited singlet state. Absorption, magnetic circular dichroism (MCD), and emission anisotropy combined with quantum-chemical calculations led to the assignment of S1 and S2 transitions in both tautomers. Compared with the parent porphycene, the S1-S2 energy gap significantly increases; for one tautomeric form, the effect is twice as large as for the other. Both amino- and nitroporphycenes emit single fluorescence; previously reported dual emission of aminoporphycenes is attributed to a degradation product. Introduction of bulky t-butyl groups leads to a huge decrease in fluorescence intensity; this effect, arising from the interaction of the meso substituent with the adjacent t-butyl moiety, is particularly strong in the nitro derivative.
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Affiliation(s)
- Idaresit Mbakara
- Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Kasprzaka 44/52, Poland.
| | - Agnieszka Gajewska
- Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Kasprzaka 44/52, Poland.
| | - Arkadiusz Listkowski
- Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Kasprzaka 44/52, Poland. .,Faculty of Mathematics and Science, Cardinal Stefan Wyszyński University, Dewajtis 5, 01-815 Warsaw, Poland
| | - Michał Kijak
- Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Kasprzaka 44/52, Poland.
| | - Krzysztof Nawara
- Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Kasprzaka 44/52, Poland. .,Faculty of Mathematics and Science, Cardinal Stefan Wyszyński University, Dewajtis 5, 01-815 Warsaw, Poland
| | - Tatu Kumpulainen
- Physical Chemistry Department, Sciences II, University of Geneva, 30, Quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
| | - Eric Vauthey
- Physical Chemistry Department, Sciences II, University of Geneva, 30, Quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
| | - Jacek Waluk
- Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Kasprzaka 44/52, Poland. .,Faculty of Mathematics and Science, Cardinal Stefan Wyszyński University, Dewajtis 5, 01-815 Warsaw, Poland
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6
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Sahoo S, Panda PK. In-Core N4-Coordination of Palladium(II) in Dinaphthoporphycene: Synthesis, Structure, and Photophysical Studies. Inorg Chem 2022; 61:2707-2712. [PMID: 35107282 DOI: 10.1021/acs.inorgchem.1c03629] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dinaphthoporphycene (DNP) has emerged as a versatile ligand undergoing large out-of-plane distortion to form a cis-bimetallic complex with Pd(II) using Pd(OAc)2 and out-of-plane monometallic complexes with Pd(acac)2 and PtCl2(PhCN)2. Herein, we are finally able to synthesize the in-core complex with Pd(II) using PdCl2(PhCN)2 or PdCl2. The crystal structure shows the palladium ion resides slightly above the N4-core, with the Pd(II) dimensionally dissenting with the typical square planarity displayed by the reported in-core DNP complexes with Ni(II) and Cu(II) ions. The deformed complex displays a blue shift in the absorption spectra compared to DNP and its metallo-derivatives. PdDNP exhibits a moderate singlet oxygen generation ability (18%).
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Affiliation(s)
- Sameeta Sahoo
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | - Pradeepta K Panda
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
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7
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Sahoo S, Panda PK. β,β′-fusion induced unique out-of-plane platinum(II) complexation in porphycene. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120679] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Guo M, Lee YM, Fukuzumi S, Nam W. Biomimetic metal-oxidant adducts as active oxidants in oxidation reactions. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213807] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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9
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Markel U, Sauer DF, Wittwer M, Schiffels J, Cui H, Davari MD, Kröckert KW, Herres-Pawlis S, Okuda J, Schwaneberg U. Chemogenetic Evolution of a Peroxidase-like Artificial Metalloenzyme. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00134] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ulrich Markel
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany
| | - Daniel F. Sauer
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany
| | - Malte Wittwer
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany
| | - Johannes Schiffels
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany
| | - Haiyang Cui
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany
| | - Mehdi D. Davari
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany
| | - Konstantin W. Kröckert
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056 Aachen, Germany
| | - Sonja Herres-Pawlis
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056 Aachen, Germany
| | - Jun Okuda
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056 Aachen, Germany
| | - Ulrich Schwaneberg
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany
- DWI—Leibniz Institute for Interactive Materials, Forckenbeckstraße 50, 52074 Aachen, Germany
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Oohora K, Hayashi T. Myoglobins engineered with artificial cofactors serve as artificial metalloenzymes and models of natural enzymes. Dalton Trans 2021; 50:1940-1949. [PMID: 33433532 DOI: 10.1039/d0dt03597a] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Metalloenzymes naturally achieve various reactivities by assembling limited types of cofactors with endogenous amino acid residues. Enzymes containing metal porphyrinoid cofactors such as heme, cobalamin and F430 exert precise control over the reactivities of the cofactors with protein matrices. This perspective article focuses on our recent efforts to assemble metal complexes of non-natural porphyrinoids within the protein matrix of myoglobin, an oxygen storage hemoprotein. Engineered myoglobins with suitable metal complexes as artificial cofactors demonstrate unique reactivities toward C-H bond hydroxylation, olefin cyclopropanation, methyl group transfer and methane generation. In these cases, the protein matrix enhances the catalytic activities of the cofactors and allows us to monitor the active intermediates. The present findings indicate that placing artificial cofactors in protein matrices provides a useful strategy for creating artificial metalloenzymes that catalyse otherwise unfavourable reactions and providing enzyme models for elucidating the complicated reaction mechanisms of natural enzymes.
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Affiliation(s)
- Koji Oohora
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, 565-0871, Japan.
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11
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Listkowski A, Kharchenko A, Ciąćka P, Kijak M, Masiera N, Rybakiewicz R, Luboradzki R, Fita P, Waluk J. Fluorinated Porphycenes: Synthesis, Spectroscopy, Photophysics, and Tautomerism. Chempluschem 2020; 85:2197-2206. [DOI: 10.1002/cplu.202000517] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/08/2020] [Indexed: 11/05/2022]
Affiliation(s)
- Arkadiusz Listkowski
- Institute of Physical Chemistry Polish Academy of Sciences Kasprzaka 44 01-224 Warsaw Poland
- Faculty of Mathematics and Natural Sciences College of Science Cardinal Stefan Wyszyński University Dewajtis 5 01-815 Warsaw Poland
| | - Anastasiia Kharchenko
- Institute of Physical Chemistry Polish Academy of Sciences Kasprzaka 44 01-224 Warsaw Poland
| | - Piotr Ciąćka
- Institute of Experimental Physics Faculty of Physics University of Warsaw Pasteura 5 02-093 Warsaw Poland
- Institute of Physical Chemistry Polish Academy of Sciences Kasprzaka 44 01-224 Warsaw Poland
| | - Michał Kijak
- Institute of Physical Chemistry Polish Academy of Sciences Kasprzaka 44 01-224 Warsaw Poland
| | - Natalia Masiera
- Institute of Physical Chemistry Polish Academy of Sciences Kasprzaka 44 01-224 Warsaw Poland
| | - Renata Rybakiewicz
- Faculty of Mathematics and Natural Sciences College of Science Cardinal Stefan Wyszyński University Dewajtis 5 01-815 Warsaw Poland
| | - Roman Luboradzki
- Institute of Physical Chemistry Polish Academy of Sciences Kasprzaka 44 01-224 Warsaw Poland
| | - Piotr Fita
- Institute of Experimental Physics Faculty of Physics University of Warsaw Pasteura 5 02-093 Warsaw Poland
| | - Jacek Waluk
- Institute of Physical Chemistry Polish Academy of Sciences Kasprzaka 44 01-224 Warsaw Poland
- Faculty of Mathematics and Natural Sciences College of Science Cardinal Stefan Wyszyński University Dewajtis 5 01-815 Warsaw Poland
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12
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Oohora K, Onoda A, Hayashi T. Hemoproteins Reconstituted with Artificial Metal Complexes as Biohybrid Catalysts. Acc Chem Res 2019; 52:945-954. [PMID: 30933477 DOI: 10.1021/acs.accounts.8b00676] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
In nature, heme cofactor-containing proteins participate not only in electron transfer and O2 storage and transport but also in biosynthesis and degradation. The simplest and representative cofactor, heme b, is bound within the heme pocket via noncovalent interaction in many hemoproteins, suggesting that the cofactor is removable from the protein, leaving a unique cavity. Since the cavity functions as a coordination sphere for heme, it is of particular interest to investigate replacement of native heme with an artificial metal complex, because the substituted metal complex will be stabilized in the heme pocket while providing alternative chemical properties. Thus, cofactor substitution has great potential for engineering of hemoproteins with alternative functions. For these studies, myoglobin has been a focus of our investigations, because it is a well-known oxygen storage hemoprotein. However, the heme pocket of myoglobin has been only arranged for stabilizing the heme-bound dioxygen, so the structure is not suitable for activation of small molecules such as H2O2 and O2 as well as for binding an external substrate. Thus, the conversion of myoglobin to an enzyme-like biocatalyst has presented significant challenges. The results of our investigations have provided useful information for chemists and biologists. Our own efforts to develop functionalized myoglobin have focused on the incorporation of a chemically modified cofactor into apomyoglobin in order to (1) construct an artificial substrate-binding site near the heme pocket, (2) increase cofactor reactivity, or (3) promote a new reaction that has never before been catalyzed by a native heme enzyme. In pursuing these objectives, we first found that myoglobin reconstituted with heme having a chemically modified heme-propionate side chain at the exit of the heme pocket has peroxidase activity with respect to oxidation of phenol derivatives. Our recent investigations have succeeded in enhancing oxidation and oxygenation activities of myoglobin as well as promoting new reactions by reconstitution of myoglobin with new porphyrinoid metal complexes. Incorporation of suitable metal porphyrinoids into the heme pocket has produced artificial enzymes capable of efficiently generating reactive high valent metal-oxo and metallocarbene intermediates to achieve the catalytic hydroxylation of C(sp3)-H bonds and cyclopropanation of olefin molecules, respectively. In other efforts, we have focused on nitrobindin, an NO-binding hemoprotein, because aponitrobindin includes a β-barrel cavity, which provides a robust structure highly similar to that of the native holoprotein. It was expected that the aponitrobindin would be suitable for development as a protein scaffold for a metal complex. Recently, it was confirmed that several organometallic complexes can bind to this scaffold and function as catalysts promoting hydrogen evolution or C-C bond formation. The hydrophobic β-barrel structure plays a significant role in substrate binding as well as controlling the stereoselectivity of the reactions. Furthermore, these catalytic activities and stereoselectivities are remarkably improved by mutation-dependent modifications of the cavity structure for the artificial cofactor. This Account demonstrates how apoproteins of hemoproteins can provide useful protein scaffolds for metal complexes. Further development of these concepts will provide a useful strategy for generation of robust and useful artificial metalloenzymes.
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Affiliation(s)
- Koji Oohora
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Akira Onoda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Takashi Hayashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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13
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Liu X, Appelhans D, Voit B. Hollow Capsules with Multiresponsive Valves for Controlled Enzymatic Reactions. J Am Chem Soc 2018; 140:16106-16114. [DOI: 10.1021/jacs.8b07980] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xiaoling Liu
- College of Polymer Science and Engineering, Sichuan University, 610065 Chengdu, PR China
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069 Dresden, Germany
- Organic Chemistry of Polymers, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069 Dresden, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069 Dresden, Germany
- Organic Chemistry of Polymers, Technische Universität Dresden, D-01062 Dresden, Germany
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14
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Chino M, Leone L, Zambrano G, Pirro F, D'Alonzo D, Firpo V, Aref D, Lista L, Maglio O, Nastri F, Lombardi A. Oxidation catalysis by iron and manganese porphyrins within enzyme-like cages. Biopolymers 2018; 109:e23107. [DOI: 10.1002/bip.23107] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 01/31/2018] [Accepted: 02/05/2018] [Indexed: 01/03/2023]
Affiliation(s)
- Marco Chino
- Department of Chemical Sciences; University of Napoli “Federico II,” Via Cintia; Napoli 80126 Italy
| | - Linda Leone
- Department of Chemical Sciences; University of Napoli “Federico II,” Via Cintia; Napoli 80126 Italy
| | - Gerardo Zambrano
- Department of Chemical Sciences; University of Napoli “Federico II,” Via Cintia; Napoli 80126 Italy
| | - Fabio Pirro
- Department of Chemical Sciences; University of Napoli “Federico II,” Via Cintia; Napoli 80126 Italy
| | - Daniele D'Alonzo
- Department of Chemical Sciences; University of Napoli “Federico II,” Via Cintia; Napoli 80126 Italy
| | - Vincenzo Firpo
- Department of Chemical Sciences; University of Napoli “Federico II,” Via Cintia; Napoli 80126 Italy
| | - Diaa Aref
- Department of Chemical Sciences; University of Napoli “Federico II,” Via Cintia; Napoli 80126 Italy
| | - Liliana Lista
- Department of Chemical Sciences; University of Napoli “Federico II,” Via Cintia; Napoli 80126 Italy
| | - Ornella Maglio
- Department of Chemical Sciences; University of Napoli “Federico II,” Via Cintia; Napoli 80126 Italy
- Institute of Biostructures and Bioimages-National Research Council, Via Mezzocannone 16; Napoli 80134 Italy
| | - Flavia Nastri
- Department of Chemical Sciences; University of Napoli “Federico II,” Via Cintia; Napoli 80126 Italy
| | - Angela Lombardi
- Department of Chemical Sciences; University of Napoli “Federico II,” Via Cintia; Napoli 80126 Italy
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15
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Anguera G, Cha W, Moore MD, Brewster JT, Zhao MY, Lynch VD, Kim D, Sessler JL. An Expanded Porphycene with High NIR Absorptivity That Stabilizes Two Different Kinds of Metal Complexes. Angew Chem Int Ed Engl 2018; 57:2575-2579. [DOI: 10.1002/anie.201711197] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Indexed: 01/22/2023]
Affiliation(s)
- Gonzalo Anguera
- Department of Chemistry The University of Texas at Austin 105 East 24th Street, Stop A5300 Austin TX 78712-1224 USA
| | - Won‐Young Cha
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry Yonsei University Seoul 03722 Korea
| | - Matthew D. Moore
- Department of Chemistry The University of Texas at Austin 105 East 24th Street, Stop A5300 Austin TX 78712-1224 USA
| | - James T. Brewster
- Department of Chemistry The University of Texas at Austin 105 East 24th Street, Stop A5300 Austin TX 78712-1224 USA
- Center for Supramolecular Chemistry and Catalysis Shanghai University Shanghai 200444 China
| | - Michael Y. Zhao
- Department of Chemistry The University of Texas at Austin 105 East 24th Street, Stop A5300 Austin TX 78712-1224 USA
| | - Vincent D. Lynch
- Department of Chemistry The University of Texas at Austin 105 East 24th Street, Stop A5300 Austin TX 78712-1224 USA
| | - Dongho Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry Yonsei University Seoul 03722 Korea
| | - Jonathan L. Sessler
- Department of Chemistry The University of Texas at Austin 105 East 24th Street, Stop A5300 Austin TX 78712-1224 USA
- Center for Supramolecular Chemistry and Catalysis Shanghai University Shanghai 200444 China
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16
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Anguera G, Cha W, Moore MD, Brewster JT, Zhao MY, Lynch VD, Kim D, Sessler JL. An Expanded Porphycene with High NIR Absorptivity That Stabilizes Two Different Kinds of Metal Complexes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Gonzalo Anguera
- Department of Chemistry The University of Texas at Austin 105 East 24th Street, Stop A5300 Austin TX 78712-1224 USA
| | - Won‐Young Cha
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry Yonsei University Seoul 03722 Korea
| | - Matthew D. Moore
- Department of Chemistry The University of Texas at Austin 105 East 24th Street, Stop A5300 Austin TX 78712-1224 USA
| | - James T. Brewster
- Department of Chemistry The University of Texas at Austin 105 East 24th Street, Stop A5300 Austin TX 78712-1224 USA
- Center for Supramolecular Chemistry and Catalysis Shanghai University Shanghai 200444 China
| | - Michael Y. Zhao
- Department of Chemistry The University of Texas at Austin 105 East 24th Street, Stop A5300 Austin TX 78712-1224 USA
| | - Vincent D. Lynch
- Department of Chemistry The University of Texas at Austin 105 East 24th Street, Stop A5300 Austin TX 78712-1224 USA
| | - Dongho Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry Yonsei University Seoul 03722 Korea
| | - Jonathan L. Sessler
- Department of Chemistry The University of Texas at Austin 105 East 24th Street, Stop A5300 Austin TX 78712-1224 USA
- Center for Supramolecular Chemistry and Catalysis Shanghai University Shanghai 200444 China
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17
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Oohora K, Meichin H, Kihira Y, Sugimoto H, Shiro Y, Hayashi T. Manganese(V) Porphycene Complex Responsible for Inert C–H Bond Hydroxylation in a Myoglobin Matrix. J Am Chem Soc 2017; 139:18460-18463. [DOI: 10.1021/jacs.7b11288] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Koji Oohora
- Department
of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
- Frontier
Research Base for Global Young Researchers, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
- PRESTO, Japan Science and Technology Agency (JST), Kawaguchi 332-0012, Japan
| | - Hiroyuki Meichin
- Department
of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| | - Yushi Kihira
- Department
of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| | | | - Yoshitsugu Shiro
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
- Graduate
School of Life Science, University of Hyogo, Hyogo 678-1297, Japan
| | - Takashi Hayashi
- Department
of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
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18
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Design of artificial metalloproteins/metalloenzymes by tuning noncovalent interactions. J Biol Inorg Chem 2017; 23:7-25. [DOI: 10.1007/s00775-017-1506-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 09/20/2017] [Indexed: 12/12/2022]
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19
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Liu X, Formanek P, Voit B, Appelhans D. Functional Cellular Mimics for the Spatiotemporal Control of Multiple Enzymatic Cascade Reactions. Angew Chem Int Ed Engl 2017; 56:16233-16238. [DOI: 10.1002/anie.201708826] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 09/20/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Xiaoling Liu
- Leibniz-Institute für Polymerforschung Dresden e.V.; Hohe Straße 6 01069 Dresden Germany
- Organic Chemistry of Polymers; Technische Universität Dresden; 01062 Dresden Germany
| | - Petr Formanek
- Leibniz-Institute für Polymerforschung Dresden e.V.; Hohe Straße 6 01069 Dresden Germany
| | - Brigitte Voit
- Leibniz-Institute für Polymerforschung Dresden e.V.; Hohe Straße 6 01069 Dresden Germany
- Organic Chemistry of Polymers; Technische Universität Dresden; 01062 Dresden Germany
| | - Dietmar Appelhans
- Leibniz-Institute für Polymerforschung Dresden e.V.; Hohe Straße 6 01069 Dresden Germany
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20
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Liu X, Formanek P, Voit B, Appelhans D. Functional Cellular Mimics for the Spatiotemporal Control of Multiple Enzymatic Cascade Reactions. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708826] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiaoling Liu
- Leibniz-Institute für Polymerforschung Dresden e.V.; Hohe Straße 6 01069 Dresden Germany
- Organic Chemistry of Polymers; Technische Universität Dresden; 01062 Dresden Germany
| | - Petr Formanek
- Leibniz-Institute für Polymerforschung Dresden e.V.; Hohe Straße 6 01069 Dresden Germany
| | - Brigitte Voit
- Leibniz-Institute für Polymerforschung Dresden e.V.; Hohe Straße 6 01069 Dresden Germany
- Organic Chemistry of Polymers; Technische Universität Dresden; 01062 Dresden Germany
| | - Dietmar Appelhans
- Leibniz-Institute für Polymerforschung Dresden e.V.; Hohe Straße 6 01069 Dresden Germany
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21
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Schwizer F, Okamoto Y, Heinisch T, Gu Y, Pellizzoni MM, Lebrun V, Reuter R, Köhler V, Lewis JC, Ward TR. Artificial Metalloenzymes: Reaction Scope and Optimization Strategies. Chem Rev 2017; 118:142-231. [PMID: 28714313 DOI: 10.1021/acs.chemrev.7b00014] [Citation(s) in RCA: 500] [Impact Index Per Article: 71.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The incorporation of a synthetic, catalytically competent metallocofactor into a protein scaffold to generate an artificial metalloenzyme (ArM) has been explored since the late 1970's. Progress in the ensuing years was limited by the tools available for both organometallic synthesis and protein engineering. Advances in both of these areas, combined with increased appreciation of the potential benefits of combining attractive features of both homogeneous catalysis and enzymatic catalysis, led to a resurgence of interest in ArMs starting in the early 2000's. Perhaps the most intriguing of potential ArM properties is their ability to endow homogeneous catalysts with a genetic memory. Indeed, incorporating a homogeneous catalyst into a genetically encoded scaffold offers the opportunity to improve ArM performance by directed evolution. This capability could, in turn, lead to improvements in ArM efficiency similar to those obtained for natural enzymes, providing systems suitable for practical applications and greater insight into the role of second coordination sphere interactions in organometallic catalysis. Since its renaissance in the early 2000's, different aspects of artificial metalloenzymes have been extensively reviewed and highlighted. Our intent is to provide a comprehensive overview of all work in the field up to December 2016, organized according to reaction class. Because of the wide range of non-natural reactions catalyzed by ArMs, this was done using a functional-group transformation classification. The review begins with a summary of the proteins and the anchoring strategies used to date for the creation of ArMs, followed by a historical perspective. Then follows a summary of the reactions catalyzed by ArMs and a concluding critical outlook. This analysis allows for comparison of similar reactions catalyzed by ArMs constructed using different metallocofactor anchoring strategies, cofactors, protein scaffolds, and mutagenesis strategies. These data will be used to construct a searchable Web site on ArMs that will be updated regularly by the authors.
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Affiliation(s)
- Fabian Schwizer
- Department of Chemistry, Spitalstrasse 51, University of Basel , CH-4056 Basel, Switzerland
| | - Yasunori Okamoto
- Department of Chemistry, Spitalstrasse 51, University of Basel , CH-4056 Basel, Switzerland
| | - Tillmann Heinisch
- Department of Chemistry, Spitalstrasse 51, University of Basel , CH-4056 Basel, Switzerland
| | - Yifan Gu
- Searle Chemistry Laboratory, University of Chicago , 5735 S. Ellis Ave., Chicago, Illinois 60637, United States
| | - Michela M Pellizzoni
- Department of Chemistry, Spitalstrasse 51, University of Basel , CH-4056 Basel, Switzerland
| | - Vincent Lebrun
- Department of Chemistry, Spitalstrasse 51, University of Basel , CH-4056 Basel, Switzerland
| | - Raphael Reuter
- Department of Chemistry, Spitalstrasse 51, University of Basel , CH-4056 Basel, Switzerland
| | - Valentin Köhler
- Department of Chemistry, Spitalstrasse 51, University of Basel , CH-4056 Basel, Switzerland
| | - Jared C Lewis
- Searle Chemistry Laboratory, University of Chicago , 5735 S. Ellis Ave., Chicago, Illinois 60637, United States
| | - Thomas R Ward
- Department of Chemistry, Spitalstrasse 51, University of Basel , CH-4056 Basel, Switzerland
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22
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Oohora K, Tang N, Morita Y, Hayashi T. Cobalt tetradehydrocorrins coordinated by imidazolate-like histidine in the heme pocket of horseradish peroxidase. J Biol Inorg Chem 2017; 22:695-703. [DOI: 10.1007/s00775-017-1458-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 04/12/2017] [Indexed: 11/25/2022]
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23
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Affiliation(s)
- Gonzalo Anguera
- Grup d’Enginyeria
de Materials, Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain
| | - David Sánchez-García
- Grup d’Enginyeria
de Materials, Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain
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24
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Abstract
Tautomerization in porphycenes, constitutional isomers of porphyrins, is strongly entangled with spectral and photophysical parameters. The intramolecular double hydrogen transfer occurring in the ground and electronically excited states leads to uncommon spectroscopic characteristics, such as depolarized emission, viscosity-dependent radiationless depopulation, and vibrational-mode-specific tunneling splittings. This review starts with documentation of the electronic spectra of porphycenes: Absorption and magnetic circular dichroism are discussed, together with their analysis based on the perimeter model. Next, photophysical characteristics are presented, setting the stage for the final part, which discusses the developments in research on tautomerism. Porphycenes have been studied in different experimental regimes: molecules in condensed phases, isolated in supersonic jets and helium nanodroplets, and, recently also on the level of single molecules investigated by optical and scanning probe microscopies. Because of the rich and detailed information obtained from these diverse investigations, porphycenes emerge as very good models for studying the complex, multidimensional phenomena involved in the process of intramolecular double hydrogen transfer.
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Affiliation(s)
- Jacek Waluk
- Institute of Physical Chemistry, Polish Academy of Sciences , 01-224 Warsaw, Kasprzaka 44/52, Poland.,Faculty of Mathematics and Science, Cardinal Stefan Wyszyński University , Dewajtis 5, 01-815 Warsaw, Poland
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25
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Oohora K, Hayashi T. Reconstitution of Heme Enzymes with Artificial Metalloporphyrinoids. Methods Enzymol 2016; 580:439-54. [DOI: 10.1016/bs.mie.2016.05.049] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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26
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Kobayashi Y, Takashima Y, Hashidzume A, Yamaguchi H, Harada A. Manual control of catalytic reactions: Reactions by an apoenzyme gel and a cofactor gel. Sci Rep 2015; 5:16254. [PMID: 26537172 PMCID: PMC4633677 DOI: 10.1038/srep16254] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 10/12/2015] [Indexed: 11/11/2022] Open
Abstract
Enzymes play a vital role in catalysing almost all chemical reactions that occur in biological systems. Some enzymes must form complexes with non-protein molecules called cofactors to express catalytic activities. Although the control of catalytic reactions via apoenzyme–cofactor complexes has attracted significant attention, the reports have been limited to the microscale. Here, we report a system to express catalytic activity by adhesion of an apoenzyme gel and a cofactor gel. The apoenzyme and cofactor gels act as catalysts when they form a gel assembly, but they lose catalytic ability upon manual dissociation. We successfully construct a system with switchable catalytic activity via adhesion and separation of the apoenzyme gel with the cofactor gel. We expect that this methodology can be applied to regulate the functional activities of enzymes that bear cofactors in their active sites, such as the oxygen transport of haemoglobin or myoglobin and the electron transport of cytochromes.
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Affiliation(s)
- Yuichiro Kobayashi
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Yoshinori Takashima
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Akihito Hashidzume
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Hiroyasu Yamaguchi
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Akira Harada
- Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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27
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Sansiaume-Dagousset E, Urvoas A, Chelly K, Ghattas W, Maréchal JD, Mahy JP, Ricoux R. Neocarzinostatin-based hybrid biocatalysts for oxidation reactions. Dalton Trans 2015; 43:8344-54. [PMID: 24728274 DOI: 10.1039/c4dt00151f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An anionic iron(III)-porphyrin-testosterone conjugate 1-Fe has been synthesized and fully characterized. It has been further associated with a neocarzinostatin variant, NCS-3.24, to generate a new artificial metalloenzyme following the so-called 'Trojan Horse' strategy. This new 1-Fe-NCS-3.24 biocatalyst showed an interesting catalytic activity as it was found able to catalyze the chemoselective and slightly enantioselective (ee = 13%) sulfoxidation of thioanisole by H2O2. Molecular modelling studies show that a synergy between the binding of the steroid moiety and that of the porphyrin macrocycle into the protein binding site can explain the experimental results, indicating a better affinity of 1-Fe for the NCS-3.24 variant than testosterone and testosterone-hemisuccinate themselves. They also show that the Fe-porphyrin complex is sandwiched between the two subdomains of the protein providing with good complementarities. However, the artificial cofactor entirely fills the cavity and its metal ion remains widely exposed to the solvent which explains the moderate enantioselectivity observed. Some possible improvements in the "Trojan Horse" strategy for obtaining better catalysts of selective oxidations are presented.
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Affiliation(s)
- Elodie Sansiaume-Dagousset
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR 8182 CNRS, Laboratoire de Chimie Bioorganique et Bioinorganique, Bât. 420, Université Paris-sud, 91405 Orsay Cedex, France.
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28
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Oohora K, Ogawa A, Fukuda T, Onoda A, Hasegawa JY, Hayashi T. meso-Dibenzoporphycene has a Large Bathochromic Shift and a Porphycene Framework with an UnusualcisTautomeric Form. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501496] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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29
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meso-Dibenzoporphycene has a Large Bathochromic Shift and a Porphycene Framework with an UnusualcisTautomeric Form. Angew Chem Int Ed Engl 2015; 54:6227-30. [DOI: 10.1002/anie.201501496] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Indexed: 11/07/2022]
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30
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Mahy JP, Maréchal JD, Ricoux R. Various strategies for obtaining oxidative artificial hemoproteins with a catalytic oxidative activity: from "Hemoabzymes" to "Hemozymes"? J PORPHYR PHTHALOCYA 2015. [DOI: 10.1142/s1088424614500813] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The design of artificial hemoproteins that could lead to new biocatalysts for selective oxidation reactions using clean oxidants such as O 2 or H 2 O 2 under ecocompatible conditions constitutes a really promising challenge for a wide range of industrial applications. In vivo, such reactions are performed by heme-thiolate proteins, cytochromes P450, that catalyze the oxidation of drugs by dioxygen in the presence of electrons delivered from NADPH by cytochrome P450 reductase. Several strategies were used to design new artificial hemoproteins to mimic these enzymes, that associate synthetic metalloporphyrin derivatives to a protein that is supposed to induce a selectivity in the catalyzed reaction. A first generation of artificial hemoproteins or "hemoabzymes" was obtained by the non-covalent association of synthetic hemes such as N-methyl-mesoporphyrin IX, Fe(III) -α3β-tetra-o-carboxyphenylporphyrin or microperoxidase 8 with monoclonal antibodies raised against these cofactors. The obtained antibody-metalloporphyrin complexes displayed a peroxidase activity and some of them catalyzed the regio-selective nitration of phenols by H 2 O 2/ NO 2 and the stereo-selective oxidation of sulphides by H 2 O 2. A second generation of artificial hemoproteins or "hemozymes", was obtained by the non-covalent association of non-relevant proteins with metalloporphyrin derivatives. Several strategies were used, the most successful of which, named "host-guest" strategy involved the non-covalent incorporation of metalloporphyrin derivatives into easily affordable proteins. The artificial hemoproteins obtained were found to be able to perform efficiently the stereoselective oxidation of organic compounds such as sulphides and alkenes by H 2 O 2 and KHSO 5.
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Affiliation(s)
- Jean-Pierre Mahy
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR 8182 CNRS, Laboratoire de Chimie, Bioorganique et Bioinorganique, Bât. 420, Université Paris-sud, 91405 Orsay Cedex, France
| | - Jean-Didier Maréchal
- Departament de Química, Universitat Autònoma de Barcelona, Edifici C.n., 08193 Cerdonyola del Vallès, Barcelona, Spain
| | - Rémy Ricoux
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR 8182 CNRS, Laboratoire de Chimie, Bioorganique et Bioinorganique, Bât. 420, Université Paris-sud, 91405 Orsay Cedex, France
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31
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Kuzuhara D, Yamada H, Nakaoka H, Okabe T, Aratani N. Synthesis, Properties and Crystal Structures of 2,7,12,17-Tetraarylporphycenes. HETEROCYCLES 2015. [DOI: 10.3987/com-14-s(k)101] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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32
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Hayashi T, Sano Y, Onoda A. Generation of New Artificial Metalloproteins by Cofactor Modification of Native Hemoproteins. Isr J Chem 2014. [DOI: 10.1002/ijch.201400123] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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33
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Matsuo T, Hirota S. Artificial enzymes with protein scaffolds: Structural design and modification. Bioorg Med Chem 2014; 22:5638-56. [DOI: 10.1016/j.bmc.2014.06.021] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 06/09/2014] [Accepted: 06/11/2014] [Indexed: 01/04/2023]
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34
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Gräfe D, Gaitzsch J, Appelhans D, Voit B. Cross-linked polymersomes as nanoreactors for controlled and stabilized single and cascade enzymatic reactions. NANOSCALE 2014; 6:10752-61. [PMID: 25099948 DOI: 10.1039/c4nr02155j] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Polymeric vesicles or polymersomes are one of the supramolecular entities at the leading edge of synthetic biology. These small compartments have shown to be feasible candidates as nanoreactors, especially for enzymatic reactions. Once cross-linked and equipped with a pH sensitive material, the reaction can be switched off (pH 8) and on (pH 6) in accordance with the increased permeability of the polymersome membranes under acidic conditions. Thus cross-linked and pH sensitive polymersomes provide a basis for pH controlled enzymatic reactions where no integrated transmembrane protein is needed for regulating the uptake and release of educts and products in the polymersome lumen. This pH-tunable working tool was further used to investigate their use in sequential enzymatic reactions (glucose oxidase and myoglobin) where enzymes are loaded in one common polymersome or in two different polymersomes. Crossing membranes and overcoming the space distance between polymersomes were shown successfully, meaning that educts and products can be exchanged between enzyme compartments for successful enzymatic cascade reactions. Moreover the stabilizing effect of polymersomes is also observable by single enzymatic reactions as well as a sequence. This study is directed to establish robust and controllable polymersome nanoreactors for enzymatic reactions, describing a switch between an off (pH 8) and on (pH 6) state of polymersome membrane permeability with no transmembrane protein needed for transmembrane exchange.
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Affiliation(s)
- David Gräfe
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany.
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35
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Urvoas A, Ghattas W, Maréchal JD, Avenier F, Bellande F, Mao W, Ricoux R, Mahy JP. Neocarzinostatin-based hybrid biocatalysts with a RNase like activity. Bioorg Med Chem 2014; 22:5678-86. [PMID: 24984934 DOI: 10.1016/j.bmc.2014.05.063] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 05/24/2014] [Accepted: 05/28/2014] [Indexed: 11/16/2022]
Abstract
A new zinc(II)-cofactor coupled to a testosterone anchor, zinc(II)-N,N-bis(2-pyridylmethyl)-1,3-diamino-propa-2-ol-N'(17'-succinimidyltestosterone) (Zn-Testo-BisPyPol) 1-Zn has been synthesized and fully characterized. It has been further associated with a neocarzinostatin variant, NCS-3.24, to generate a new artificial metalloenzyme following the so-called 'Trojan horse' strategy. This new 1-Zn-NCS-3.24 biocatalyst showed an interesting catalytic activity as it was found able to catalyze the hydrolysis of the RNA model HPNP with a good catalytic efficiency (kcat/KM=13.6M(-1)s(-1) at pH 7) that places it among the best artificial catalysts for this reaction. Molecular modeling studies showed that a synergy between the binding of the steroid moiety and that of the BisPyPol into the protein binding site can explain the experimental results, indicating a better affinity of 1-Zn for the NCS-3.24 variant than testosterone and testosterone-hemisuccinate themselves. They also show that the artificial cofactor entirely fills the cavity, the testosterone part of 1-Zn being bound to one the two subdomains of the protein providing with good complementarities whereas its metal ion remains widely exposed to the solvent which made it a valuable tool for the catalysis of hydrolysis reactions, such as that of HPNP. Some possible improvements in the 'Trojan horse' strategy for obtaining better catalysts of selective reactions will be further studied.
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Affiliation(s)
- Agathe Urvoas
- Institut de Biochimie et de Biophysique Moléculaire et Cellulaire, UMR 8619 CNRS, Laboratoire de Modélisation et d'Ingénierie des Protéines, Bât. 430, Université Paris XI, 91405 Orsay Cedex, France
| | - Wadih Ghattas
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR 8182 CNRS, Laboratoire de Chimie Bioorganique et Bioinorganique, Bât. 420, Université Paris-sud, 91405 Orsay Cedex, France
| | - Jean-Didier Maréchal
- Departament de Química, Universitat Autònoma de Barcelona, Edifici C.n., Cerdonyola del Vallès, 08193 Barcelona, Spain
| | - Frédéric Avenier
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR 8182 CNRS, Laboratoire de Chimie Bioorganique et Bioinorganique, Bât. 420, Université Paris-sud, 91405 Orsay Cedex, France
| | - Felix Bellande
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR 8182 CNRS, Laboratoire de Chimie Bioorganique et Bioinorganique, Bât. 420, Université Paris-sud, 91405 Orsay Cedex, France
| | - Wei Mao
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR 8182 CNRS, Laboratoire de Chimie Bioorganique et Bioinorganique, Bât. 420, Université Paris-sud, 91405 Orsay Cedex, France
| | - Rémy Ricoux
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR 8182 CNRS, Laboratoire de Chimie Bioorganique et Bioinorganique, Bât. 420, Université Paris-sud, 91405 Orsay Cedex, France.
| | - Jean-Pierre Mahy
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR 8182 CNRS, Laboratoire de Chimie Bioorganique et Bioinorganique, Bât. 420, Université Paris-sud, 91405 Orsay Cedex, France.
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Yu F, Cangelosi VM, Zastrow ML, Tegoni M, Plegaria JS, Tebo AG, Mocny CS, Ruckthong L, Qayyum H, Pecoraro VL. Protein design: toward functional metalloenzymes. Chem Rev 2014; 114:3495-578. [PMID: 24661096 PMCID: PMC4300145 DOI: 10.1021/cr400458x] [Citation(s) in RCA: 329] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Fangting Yu
- University of Michigan, Ann Arbor, Michigan 48109, United States
| | | | | | | | | | - Alison G. Tebo
- University of Michigan, Ann Arbor, Michigan 48109, United States
| | | | - Leela Ruckthong
- University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Hira Qayyum
- University of Michigan, Ann Arbor, Michigan 48109, United States
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37
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Incorporation of modified and artificial cofactors into naturally occurring protein scaffolds. Methods Mol Biol 2014; 1216:251-63. [PMID: 25213420 DOI: 10.1007/978-1-4939-1486-9_13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
As a possible modification of cofactor-containing proteins, cofactor-substitution typically leads to drastic changes of protein function. In particular heme, a porphyrin iron complex, is a representative, replaceable cofactor for this methodology and numerous cofactor-modified hemoproteins (reconstituted hemoproteins) have been prepared with the goal of elucidating their operational mechanism and/or engineering the protein function. In a series of hemoproteins, myoglobin, an oxygen storage hemoprotein, is one of the most rewarding scaffolds to generate a modified protein with an artificial cofactor. In this chapter, we describe practical procedures for the preparation of apomyoglobin and incorporation of zinc porphyrin as an artificial cofactor. Furthermore, we discuss the methodology to characterize the obtained cofactor-substituted proteins and the design of several artificial cofactors.
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Oohora K, Kihira Y, Mizohata E, Inoue T, Hayashi T. C(sp3)–H Bond Hydroxylation Catalyzed by Myoglobin Reconstituted with Manganese Porphycene. J Am Chem Soc 2013; 135:17282-5. [DOI: 10.1021/ja409404k] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Koji Oohora
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, 565-0871, Japan
| | - Yushi Kihira
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, 565-0871, Japan
| | - Eiichi Mizohata
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, 565-0871, Japan
| | - Tsuyoshi Inoue
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, 565-0871, Japan
| | - Takashi Hayashi
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, 565-0871, Japan
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39
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Lin YW, Sawyer EB, Wang J. Rational heme protein design: all roads lead to Rome. Chem Asian J 2013; 8:2534-44. [PMID: 23704071 DOI: 10.1002/asia.201300291] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Indexed: 01/03/2023]
Abstract
Heme proteins are among the most abundant and important metalloproteins, exerting diverse biological functions including oxygen transport, small molecule sensing, selective C-H bond activation, nitrite reduction, and electron transfer. Rational heme protein designs focus on the modification of the heme-binding active site and the heme group, protein hybridization and domain swapping, and de novo design. These strategies not only provide us with unique advantages for illustrating the structure-property-reactivity-function (SPRF) relationship of heme proteins in nature but also endow us with the ability to create novel biocatalysts and biosensors.
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Affiliation(s)
- Ying-Wu Lin
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001 (China)
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40
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Heinisch T, Langowska K, Tanner P, Reymond JL, Meier W, Palivan C, Ward TR. Fluorescence-Based Assay for the Optimization of the Activity of Artificial Transfer Hydrogenase within a Biocompatible Compartment. ChemCatChem 2013. [DOI: 10.1002/cctc.201200834] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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41
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Abstract
Metal-ligand interactions with various proteins form in vivo metal assemblies. In recent years, metallosupramolecular approaches have been utilized to forge an assortment of fascinating two- and three-dimensional nano-architectures, and macroscopic materials, such as metal-ligand coordination polymeric materials, have promise in artificial systems. However to the best of our knowledge, the self-assembly of macroscopic materials through metal-ligand interactions has yet to be reported. Herein we demonstrate a gel assembly formed via metal-ligand interactions using polyacrylamide modified with Fe-porphyrin and L-histidine moieties. The stress values for the assembly increase as the concentration of Fe-porphyrin or L-histidine in the gels increases. Moreover, agitation of Fe-porphyrin gel, Zn-porphyrin gel, and L-histidine gel in an 80 mM Tris-acetate buffer (pH 9.0) results in selective adhesion of the Fe-porphyrin gel to the L-histidine gel based on the affinities of Fe-porphyrin and Zn-porphyrin with L-histidine.
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42
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Onoda A, Hayashi T. Complimenting a Metal Complex with Protein Environment toward a New Hybrid Biocatalyst. J SYN ORG CHEM JPN 2013. [DOI: 10.5059/yukigoseikyokaishi.71.452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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43
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Matsuo T, Komatsuzaki K, Tsuji T, Hayashi T. Reaction of cobalt porphycene with hydride reagents: spectroscopic detection of Co–H porphycene species and formation of Co–SnR3 porphycene species. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424612500587] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The reaction of tetrapropylporphycenatocobalt(III) with tributyltin hydride generates a cobalt(III)–hydride porphycene detectable by UV-vis spectroscopy under diluted conditions, whereas it is impossible to characterize hydride species of cobalt porphyrins. One of the reasons for the stability of the porphycene hydride species is that the porphycene ring has a lower LUMO energy level due to the decrease in the symmetry of the ligand character. However, the hydride species in a highly concentrated solution of the complex is easily converted into the cobalt(II) species via dimerization or reaction of the hydride with excess tributyltin hydride through hemolysis of the Sn–H/Co–H bonds. When the Co(III) porphycene is reacted with LiBHEt3 , the final product is the cobalt(III)–ethyl complex formed by β-rearrangement during the reaction of the hydride species and diethylborane in a solvent cage. In the reaction of tetrakistrifluoromethylporphycenatocobalt(III) with tributyltin hydride, the dominant reaction pathway includes one-electron reduction of the porphycene ring together with radical coupling of the tin reagent rather than the net hydride transfer. This finding suggests that the delicate control of the LUMO energy level influences the stability of the hydride species. The tetrapropylporphycenatocobalt(III) complex with tributyltin or triphenyltin hydride in the presence of AIBN produces the corresponding Co(III)– trialkyltin complex. This complex was characterized by 1H NMR spectroscopy.
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Affiliation(s)
- Takashi Matsuo
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), Ikoma, Nara 630-0192, Japan
| | - Kunihiko Komatsuzaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Takanori Tsuji
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Takashi Hayashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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Gaitzsch J, Appelhans D, Wang L, Battaglia G, Voit B. Synthetic Bio-nanoreactor: Mechanical and Chemical Control of Polymersome Membrane Permeability. Angew Chem Int Ed Engl 2012; 51:4448-51. [DOI: 10.1002/anie.201108814] [Citation(s) in RCA: 226] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Indexed: 01/05/2023]
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45
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Gaitzsch J, Appelhans D, Wang L, Battaglia G, Voit B. Synthetischer Bionanoreaktor: mechanische und chemische Kontrolle der Permeabilität von Polymersom-Membranen. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201108814] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Matsuo T, Hayashi T. Electron transfer and oxidase activities in reconstituted hemoproteins with chemically modified cofactors. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424609001340] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Protoheme IX is a typical iron porphyrin cofactor, showing a variety of reactivities in many hemoproteins under the reaction environments provided by protein matrices. Chemical modification of the protoheme cofactor is expected to be a versatile strategy to design hemoproteins possessing unique functions. This review focuses on the conversion of a hemoprotein, mainly myoglobin (an oxygen-storage hemoprotein), into a protein having different functions from the original ones by replacement of the protoheme cofactor with synthetic cofactors. The myoglobin having anionic patches pended to the heme propionates effectively binds electron-accepting proteins or small cationic organic molecules on the protein surface, resulting in enhanced efficiency of the photoinduced electron transfers from the myoglobin to these electron acceptors. Furthermore, the peroxidase and peroxygenase activities are also enhanced due to the facile substrate accesses. The attachment of the chemically active moiety such as flavin at the heme terminal is also important to give P450-like function to the native myoglobin. The employment of a structural isomer of porphyrin as an artificial cofactor gives rise to remarkably high dioxygen affinity and peroxidase activity in myoglobin, and allows us to easily detect high-valent species of the porphyrin isomer in HRP. These examples provide a clear insight into hemoprotein modifications based on synthetic chemistry as well as genetic amino acid mutations.
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Affiliation(s)
- Takashi Matsuo
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Takashi Hayashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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47
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Wang HL, Sun Q, Chen M, Miyake J, Qian DJ. Layer-by-layer assembly and characterization of multilayers of a manganese porphyrin linked poly(4-vinylpyridinium) derivative and poly(styrenesulfonic acid-o-maleic) acid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:9880-9889. [PMID: 21766820 DOI: 10.1021/la2022165] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Multilayers of manganese(III) porphyrin-linked poly(vinylpyridinium) (MnTMPyP-PVPMe) polyelectrolyte and poly(styrenesulfonic acid-o-maleic) acid (PSS) have been assembled on gold, quartz, and indium tin oxide surfaces by a layer-by-layer (LBL) technique. The assembly process was monitored by measuring their absorption spectra and frequency change after each assembly, both of which confirmed the formation of three-dimensional MnTMPyP-PVPMe/PSS multilayers. The Soret absorption band of porphyrin red shifted about 8 nm in the multilayer compared with that in the dilute aqueous solution. The average mass changes for each assembly of MnTMPyP-PVPMe and PSS were estimated to be about 2.9 and 0.25 μg/cm(2), respectively. X-ray photoelectron spectra revealed that the as-prepared multilayers were composed of S 2p, C 1s, N 1s, O 1s, and Mn 2p, corresponding to polymers of MnTMPyP-PVPMe and PSS. A rough surface was observed after the assembly of MnTMPyP-PVPMe on the gold surface, but it became smoother when the PSS layer was adsorbed. The significant difference in the mass change and film morphology after the assembly of MnTMPyP-PVPMe compared to those after the assembly of PSS was ascribed to the reason that the MnTMPyP-PVPMe polyelectrolyte contained large metalloporphyrin macrocycles, which were axially coordinated to the pyridyl substituents of the PVP polymeric backbones. The cyclic voltammograms revealed two couples of redox waves in the phosphate electrolyte solution at pH 11, which corresponded to the electron-transfer processes of Mn(II)/Mn(III) and Mn(III)/Mn(IV) of polymeric manganese porphyrin MnTMPyP-PVPMe. The charge-transfer process was also investigated. Finally, the present MnTMPyP-PVPMe/PSS multilayers were used as a heterogeneous catalyst for the decoloration of an azo dye.
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Affiliation(s)
- Hong-Lei Wang
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
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48
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Matsuo T, Fukumoto K, Watanabe T, Hayashi T. Precise Design of Artificial Cofactors for Enhancing Peroxidase Activity of Myoglobin: Myoglobin Mutant H64D Reconstituted with a “Single-Winged Cofactor” Is Equivalent to Native Horseradish Peroxidase in Oxidation Activity. Chem Asian J 2011; 6:2491-9. [DOI: 10.1002/asia.201100107] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2011] [Indexed: 11/09/2022]
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49
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Bröring M, Brégier F, Burghaus O, Kleeberg C. A Biomimetic Copper Corrole - Preparation, Characterization, and Reconstitution with Horse Heart Apomyoglobin. Z Anorg Allg Chem 2010. [DOI: 10.1002/zaac.201000102] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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50
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Fujitsuka M, Shimakoshi H, Tojo S, Cheng L, Maeda D, Hisaeda Y, Majima T. Electron Transfer in the Supramolecular Donor−Acceptor Dyad of Zinc Hemiporphycene. J Phys Chem A 2010; 114:4156-62. [DOI: 10.1021/jp9119342] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Mamoru Fujitsuka
- Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan, Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Hisashi Shimakoshi
- Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan, Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Sachiko Tojo
- Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan, Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Lingli Cheng
- Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan, Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Daisuke Maeda
- Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan, Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Yoshio Hisaeda
- Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan, Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Tetsuro Majima
- Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan, Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
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