1
|
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.
Collapse
Affiliation(s)
- Christopher M Lemon
- Department of Chemistry and Biochemistry, Montana State University, PO Box 173400, Bozeman, MT 59717, United States.
| |
Collapse
|
2
|
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.
Collapse
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
| |
Collapse
|
3
|
How Nanoparticles Modify Adsorbed Proteins: Impact of Silica Nanoparticles on the Hemoglobin Active Site. Int J Mol Sci 2023; 24:ijms24043659. [PMID: 36835069 PMCID: PMC9967434 DOI: 10.3390/ijms24043659] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/07/2023] [Accepted: 02/09/2023] [Indexed: 02/17/2023] Open
Abstract
The adsorption of proteins on surfaces has been studied for a long time, but the relationship between the structural and functional properties of the adsorbed protein and the adsorption mechanism remains unclear. Using hemoglobin adsorbed on silica nanoparticles, we have previously shown that hemoglobin's affinity towards oxygen increases with adsorption. Nevertheless, it was also shown that there were no significant changes in the quaternary and secondary structures. In order to understand the change in activity, we decided in this work to focus on the active sites of hemoglobin, the heme and its iron. After measuring adsorption isotherms of porcine hemoglobin on Ludox silica nanoparticles, we analyzed the structural modifications of adsorbed hemoglobin by X-ray absorption spectroscopy and circular dichroism spectra in the Soret region. It was found that upon adsorption, there were modifications in the heme pocket environment due to changes in the angles of the heme vinyl functions. These alterations can explain the greater affinity observed.
Collapse
|
4
|
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%).
Collapse
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
| |
Collapse
|
5
|
Nagamaiah J, Dutta A, Pati NN, Sahoo S, Soman R, Panda PK. 3,6,13,16-Tetrapropylporphycene: Rational Synthesis, Complexation, and Halogenation. J Org Chem 2022; 87:2721-2729. [DOI: 10.1021/acs.joc.1c02652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Arnab Dutta
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | | | - Sameeta Sahoo
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | - Rahul Soman
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | | |
Collapse
|
6
|
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]
|
7
|
Jodukathula N, Dutta A, Sahoo SS, Sahoo S, Panda P. 3,6,13,16-Tetraalkylporphycenes: Synthesis and Exploration of Effect of Alkyl Groups on Structure, Photophysical Properties, and Basicity. NEW J CHEM 2022. [DOI: 10.1039/d2nj01550a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two new 3,6,13,16-tetraalkylporphycenes were synthesized following rational approach. The reason behind lower yield of the desired β,β'-bipyrroles was unraveled. The σ-donating effect of alkyl-substituents was more profound than reported positional...
Collapse
|
8
|
Mao Q, Das PK, Le Gac S, Boitrel B, Dorcet V, Oohora K, Hayashi T, Kitagishi H. Functional Myoglobin Model Composed of a Strapped Porphyrin/Cyclodextrin Supramolecular Complex with an Overhanging COOH That Increases O 2/CO Binding Selectivity in Aqueous Solution. Inorg Chem 2021; 60:12392-12404. [PMID: 34319113 DOI: 10.1021/acs.inorgchem.1c01628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A water-soluble strapped iron(III)tetraarylporphyrin (FeIIIPor-1) bearing two propylpyridinium groups at the side chains and a carboxylic acid group at the overhanging position of the strap was synthesized to mimic the function of myoglobin with the distal polar functionality in aqueous solution. FeIIIPor-1 forms a stable 1:1 inclusion complex with a per-O-methylated β-cyclodextrin dimer having a pyridine linker (Py3OCD), providing a hydrophobic environment and a proximal fifth ligand to stabilize the O2-complex. The ferrous complex (FeIIPorCD-1) binds both O2 and CO in aqueous solution. The O2 and CO binding affinities (P1/2O2 and P1/2CO) and half-life time (t1/2) of the O2 complex of FeIIPorCD-1 are 6.3 and 0.021 Torr, and 7 h, respectively, at pH 7 and 25 °C. The control compound without the strap structure (FeIIPorCD-2) has similar oxygen binding characteristics (P1/2O2 = 8.0 Torr), but much higher CO binding affinity (P1/2CO = 3.8 × 10-4 Torr), and longer t1/2 (30 h). The O2 and CO kinetics indicate that the strapped structure in FeIIPorCD-1 inhibits the entrance of these gaseous ligands into the iron(II) center, as evidenced by lower konO2 and konCO values. Interestingly, the CO complex of FeIIPorCD-1 is significantly destabilized (relatively larger koffCO), while the koffO2 value is much smaller than that of FeIIPorCD-2, resulting in significantly increased O2/CO selectivity (reduced M value, where M = P1/2O2/P1/2CO = 320) in FeIIPorCD-1 compared to FeIIPorCD-2 (M = 21000).
Collapse
Affiliation(s)
- Qiyue Mao
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe-city, Kyoto 610-0321, Japan
| | - Pradip K Das
- Institut des Sciences Chimiques de Rennes, Université Rennes, CNRS, UMR 6226, Rennes F-35000, France
| | - Stéphane Le Gac
- Institut des Sciences Chimiques de Rennes, Université Rennes, CNRS, UMR 6226, Rennes F-35000, France
| | - Bernard Boitrel
- Institut des Sciences Chimiques de Rennes, Université Rennes, CNRS, UMR 6226, Rennes F-35000, France
| | - Vincent Dorcet
- Institut des Sciences Chimiques de Rennes, Université Rennes, CNRS, UMR 6226, Rennes F-35000, France
| | - Koji Oohora
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita 565-0871, Japan
| | - Takashi Hayashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita 565-0871, Japan
| | - Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe-city, Kyoto 610-0321, Japan
| |
Collapse
|
9
|
Zhao J, Qian F, Guo W, Li J, Lin Z. Linkage Isomers of 4-Methylimidazolate Mn(II) Porphyrinates: Hindered or Unhindered? Inorg Chem 2021; 60:7465-7474. [PMID: 33947188 DOI: 10.1021/acs.inorgchem.1c00755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Three different manganese(II) porphyrins have been exploited to react with 4-methylimidazolate (4-MeIm-), and the five-coordinate products are characterized by ultraviolet-visible, single-crystal X-ray, and electronic paramagnetic resonance spectroscopies. Interestingly, 4-MeIm- is found to bond to the metal center through either of the two N atoms (N1 or N3), which yielded two linkage isomers with either an unhindered or a hindered ligand conformation, respectively. Investigations revealed it is the large metal out-of-plane displacements (Δ24 and Δ4 ≥ 0.59 Å) that have rendered the equivalence of two isomers with a small energy difference (5.2-8.3 kJ/mol). The nonbonded intra- and intermolecular interactions thus become crucial factors in the balance of linkage isomerization. All of the products in both solution and solid states show the same characteristic resonances of high-spin Mn(II) (S = 5/2) with g⊥ ≈ 5.9 and g∥ ≈ 2.0 at 4 K, consistent with the weak effects of the axial ligand on core conformation and metal electronic configurations. Zero-field splitting parameters obtained through simulations are also reported.
Collapse
Affiliation(s)
- Jianping Zhao
- College of Materials Science and Optoelectronic Technology, CAS Center for Excellence in Topological Quantum Computation, and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Yanqi Lake, Huairou District, Beijing 101408, China
| | - Fei Qian
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Wenping Guo
- National Energy Center for Coal to Liquids, Synfuels China Company, Ltd., Beijing 101400, China
| | - Jianfeng Li
- College of Materials Science and Optoelectronic Technology, CAS Center for Excellence in Topological Quantum Computation, and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Yanqi Lake, Huairou District, Beijing 101408, China
| | - Zeyuan Lin
- The University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
10
|
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.
Collapse
Affiliation(s)
- Koji Oohora
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, 565-0871, Japan.
| | | |
Collapse
|
11
|
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
| |
Collapse
|
12
|
Rana A, Sathish Kumar B, Panda PK. 3,6,13,16-Tetrasubstituted Porphycene: The Missing Link in Porphycene Chemistry. Org Lett 2020; 22:7175-7180. [PMID: 32852214 DOI: 10.1021/acs.orglett.0c02494] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have introduced the first 3,6,13,16-tetrasubstituted porphycene as its tetramethoxy analogue. This substitution pattern is one of the most general patterns yet missing in this isomeric porphyrin chemistry. This porphycene exhibits intense fluorescence along with the ability to coordinate with divalent metal ions; in particular, it forms the first stable Zn(II) complex among the tetrasubstituted porphycenes. Notably, the molecular structure of Zn1•Py displays supramolecular chirality.
Collapse
|
13
|
Galinato MGI, Brocious EP, Paulat F, Martin S, Skodack J, Harland JB, Lehnert N. Elucidating the Electronic Structure of High-Spin [MnIII(TPP)Cl] Using Magnetic Circular Dichroism Spectroscopy. Inorg Chem 2020; 59:2144-2162. [DOI: 10.1021/acs.inorgchem.9b02599] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mary Grace I. Galinato
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
- School of Science-Chemistry, Penn State Behrend, Erie, Pennsylvania 16563, United States
| | - Emily P. Brocious
- School of Science-Chemistry, Penn State Behrend, Erie, Pennsylvania 16563, United States
| | - Florian Paulat
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Sherri Martin
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Joshua Skodack
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Jill B. Harland
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Nicolai Lehnert
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| |
Collapse
|
14
|
Pati NN, Sahoo S, Sahoo SS, Banerjee D, Rao SV, Panda PK. Chromatographically separable ruffled non-planar isomeric octaalkylporphycenes: consequences of unsymmetrical substitution upon structure and photophysical properties. NEW J CHEM 2020. [DOI: 10.1039/d0nj01744b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two symmetry reduction induced unsymmetrical porphyrins (2.0.2.0) were synthesized and characterized with distinct structural, optoelectronic and nonlinear optical properties.
Collapse
Affiliation(s)
| | - Sameeta Sahoo
- School of Chemistry
- University of Hyderabad
- Hyderabad-500046
- India
| | - Sipra S. Sahoo
- School of Chemistry
- University of Hyderabad
- Hyderabad-500046
- India
| | - Dipanjan Banerjee
- Advanced Centre of Research in High Energy Materials (ACRHEM)
- University of Hyderabad
- Hyderabad-500046
- India
| | - S. Venugopal Rao
- Advanced Centre of Research in High Energy Materials (ACRHEM)
- University of Hyderabad
- Hyderabad-500046
- India
| | | |
Collapse
|
15
|
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.
Collapse
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
| |
Collapse
|
16
|
Watanabe M, Kanai Y, Nakamura S, Nishimura R, Shibata T, Momotake A, Yanagisawa S, Ogura T, Matsuo T, Hirota S, Neya S, Suzuki A, Yamamoto Y. Synergistic Effect of Distal Polar Interactions in Myoglobin and Their Structural Consequences. Inorg Chem 2018; 57:14269-14279. [DOI: 10.1021/acs.inorgchem.8b02302] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | | | - Sachiko Yanagisawa
- Department of Life Science, Graduate School of Life Science, University of Hyogo,
Sayo-cho, Sayo-gun, Hyogo 678-1297, Japan
| | - Takashi Ogura
- Department of Life Science, Graduate School of Life Science, University of Hyogo,
Sayo-cho, Sayo-gun, Hyogo 678-1297, Japan
| | - Takashi Matsuo
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Shun Hirota
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Saburo Neya
- Department of Physical Chemistry, Graduate School of Pharmaceutical Sciences, Chiba University, Chuoh-Inohana, Chiba 260-8675, Japan
| | - Akihiro Suzuki
- Department of Materials Engineering, National Institute of Technology, Nagaoka College, Nagaoka 940-8532, Japan
| | - Yasuhiko Yamamoto
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba 305-8577, Japan
| |
Collapse
|
17
|
Kurokawa D, Gueriba JS, Diño WA. Spin-Dependent O 2 Binding to Hemoglobin. ACS OMEGA 2018; 3:9241-9245. [PMID: 31459056 PMCID: PMC6645249 DOI: 10.1021/acsomega.8b00879] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 08/06/2018] [Indexed: 06/09/2023]
Abstract
We report results of our study on the mechanism of spin-dependent O2 binding to hemoglobin, which we represent as FePIm (Fe = iron, P = porphyrin, Im = imidazole). This involves the transition between two states, viz., the oxyhemoglobin state and the deoxyhemoglobin state. The deoxyhemoglobin state pertains to FePIm and a free O2 molecule, while the oxyhemoglobin state pertains to an O2 bound to FePIm. The deoxyhemoglobin and oxyhemoglobin systems have triplet and singlet total magnetizations, respectively. We found that a spin transition from triplet to quintet to singlet mediates the O2 binding process, and this accelerates the reaction. We also found that the position of the Fe atom out of the porphyrin plane is an important indicator of O2 affinity.
Collapse
Affiliation(s)
- Daiichi Kurokawa
- Department
of Applied Physics and Center for Atomic and Molecular Technologies, Osaka University, Suita, Osaka 565-0871, Japan
| | - Jessiel Siaron Gueriba
- Department
of Applied Physics and Center for Atomic and Molecular Technologies, Osaka University, Suita, Osaka 565-0871, Japan
- Department
of Physics, De La Salle University, 2401 Taft Avenue, Manila 0922, Philippines
| | - Wilson Agerico Diño
- Department
of Applied Physics and Center for Atomic and Molecular Technologies, Osaka University, Suita, Osaka 565-0871, Japan
| |
Collapse
|
18
|
Preparation and characterization of myoglobin reconstituted with Fe(II) oxaporphyrin: The monoanionic macrocycle provides unique cyanide binding behavior for the ferrous species. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.06.054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
19
|
Abe M, Mukotaka H, Fujioka T, Okawara T, Umegaki K, Ono T, Hisaeda Y. First entry into nonmetal-centred porphycenes: synthesis of a phosphorus(v) complex of octaethylporphycene. Dalton Trans 2018; 47:2487-2491. [DOI: 10.1039/c7dt04471b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first synthesis and structural characterization of a phosphorus(v) complex of porphycene, a constitutional isomer of porphyrin, are reported.
Collapse
Affiliation(s)
- Masaaki Abe
- Graduate School of Material Science
- University of Hyogo
- Hyogo 678-1297
- Japan
| | - Hiroto Mukotaka
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Taro Fujioka
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Toru Okawara
- Department of Creative Engineering
- National Institute of Technology
- Kitakyushu College
- Kokuraminami-ku, Kitakyushu 802-0985
- Japan
| | - Kei Umegaki
- Graduate School of Material Science
- University of Hyogo
- Hyogo 678-1297
- Japan
| | - Toshikazu Ono
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Yoshio Hisaeda
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| |
Collapse
|
20
|
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]
|
21
|
Oohora K, Meichin H, Zhao L, Wolf MW, Nakayama A, Hasegawa JY, Lehnert N, Hayashi T. Catalytic Cyclopropanation by Myoglobin Reconstituted with Iron Porphycene: Acceleration of Catalysis due to Rapid Formation of the Carbene Species. J Am Chem Soc 2017; 139:17265-17268. [DOI: 10.1021/jacs.7b10154] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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
| | - Liming Zhao
- Institute
for Catalysis, Hokkaido University, Sapporo 001-0021, Japan
| | - Matthew W. Wolf
- Department
of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Akira Nakayama
- PRESTO, Japan Science and Technology Agency (JST), Kawaguchi 332-0012, Japan
- Institute
for Catalysis, Hokkaido University, Sapporo 001-0021, Japan
| | - Jun-ya Hasegawa
- Institute
for Catalysis, Hokkaido University, Sapporo 001-0021, Japan
| | - Nicolai Lehnert
- Department
of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Takashi Hayashi
- Department
of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| |
Collapse
|
22
|
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]
|
23
|
|
24
|
Pati NN, Kumar BS, Chandra B, Panda PK. Unsymmetrical Bipyrrole-Derived β-Tetraalkylporphycenes and C-H···Br-C Interaction Induced 2D Arrays of the 2:1 Supramolecular Sandwich Complex of Their cis
-/trans
-Dibromo Isomers. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601584] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Narendra N. Pati
- School of Chemistry; University of Hyderabad; 500046 Hyderabad India
| | - B. Sathish Kumar
- School of Chemistry; University of Hyderabad; 500046 Hyderabad India
| | - Brijesh Chandra
- School of Chemistry; University of Hyderabad; 500046 Hyderabad India
| | | |
Collapse
|
25
|
Pati NN, Kumar BS, Panda PK. β-Hexaalkylporphycenes: Positional Effect of Alkyl Groups toward Design and Control of Structural and Photophysical Properties in Isomeric Hexaethylporphycenes. Org Lett 2017; 19:134-137. [PMID: 28009516 DOI: 10.1021/acs.orglett.6b03428] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two novel β-hexaalkylated porphycenes, i.e., 2,3,7,12,13,17- (HOT) and 2,3,6,12,13,16-hexaethylporphycenes (HIT) were introduced for the first time in porphycene chemistry. These were synthesized through McMurry coupling reactions of new isomeric unsymmetrically substituted triethylbipyrrole dialdehydes. The positional effects of alkyl groups could be manifested through significant alteration in structure of porphycene cores and, as a consequence their photophysical properties, not noticed in β-octaethylporphycene. HOT displays significant fluorescence accompanied by reasonable singlet oxygen generation ability.
Collapse
Affiliation(s)
- Narendra N Pati
- School of Chemistry, University of Hyderabad , Hyderabad 500046, India
| | - B Sathish Kumar
- School of Chemistry, University of Hyderabad , Hyderabad 500046, India
| | - Pradeepta K Panda
- School of Chemistry, University of Hyderabad , Hyderabad 500046, India
| |
Collapse
|
26
|
Ono T, Koga D, Yoza K, Hisaeda Y. The first synthesis of meso-dicycloalkylporphycenes: ring strain effects on structural and optical properties of isomeric porphyrins. Chem Commun (Camb) 2017; 53:12258-12261. [DOI: 10.1039/c7cc07170a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Two novel meso-dicycloalkylporphycenes were synthesized for the first time, which showed remarkable ring-strain-induced switching of their fluorescence behaviors in the solution phase.
Collapse
Affiliation(s)
- Toshikazu Ono
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Daiki Koga
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Kenji Yoza
- Japan Bruker AXS K.K
- Yokohama 221-0022
- Japan
| | - Yoshio Hisaeda
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| |
Collapse
|
27
|
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
| |
Collapse
|
28
|
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.
Collapse
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
| |
Collapse
|
29
|
He M, Li X, Liu Y, Li J. Axial Mn–CCN Bonds of Cyano Manganese(II) Porphyrin Complexes: Flexible and Weak? Inorg Chem 2016; 55:5871-9. [PMID: 27228473 DOI: 10.1021/acs.inorgchem.6b00173] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mingrui He
- College
of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Yanqi Lake, Huairou District,
Beijing 101408, China
| | - Xiangjun Li
- College
of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Yanqi Lake, Huairou District,
Beijing 101408, China
| | - Yanhong Liu
- Technical
Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jianfeng Li
- College
of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Yanqi Lake, Huairou District,
Beijing 101408, China
| |
Collapse
|
30
|
|
31
|
Kanai Y, Nishimura R, Nishiyama K, Shibata T, Yanagisawa S, Ogura T, Matsuo T, Hirota S, Neya S, Suzuki A, Yamamoto Y. Effects of Heme Electronic Structure and Distal Polar Interaction on Functional and Vibrational Properties of Myoglobin. Inorg Chem 2016; 55:1613-22. [DOI: 10.1021/acs.inorgchem.5b02520] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuki Kanai
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Ryu Nishimura
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Kotaro Nishiyama
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Tomokazu Shibata
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Sachiko Yanagisawa
- Department of Life
Science, Graduate School of Life Science, University of Hyogo, RSC-UH Leading Program Center, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Takashi Ogura
- Department of Life
Science, Graduate School of Life Science, University of Hyogo, RSC-UH Leading Program Center, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Takashi Matsuo
- Graduate School of
Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Shun Hirota
- Graduate School of
Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Saburo Neya
- Department of Physical Chemistry, Graduate School of Pharmaceutical
Sciences, Chiba University, Chuoh-Inohana, Chiba 260-8675, Japan
| | - Akihiro Suzuki
- Department
of Materials Engineering, Nagaoka National College of Technology, Nagaoka 940-8532, Japan
| | - Yasuhiko Yamamoto
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
- Life Science
Center of Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba 305-8577, Japan
| |
Collapse
|
32
|
Morita Y, Oohora K, Mizohata E, Sawada A, Kamachi T, Yoshizawa K, Inoue T, Hayashi T. Crystal Structures and Coordination Behavior of Aqua- and Cyano-Co(III) Tetradehydrocorrins in the Heme Pocket of Myoglobin. Inorg Chem 2016; 55:1287-95. [DOI: 10.1021/acs.inorgchem.5b02598] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yoshitsugu Morita
- Department of Applied Chemistry, Graduate
School of Engineering, Osaka University, Suita 565-0871, Japan
| | - 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
| | - Eiichi Mizohata
- Department of Applied Chemistry, Graduate
School of Engineering, Osaka University, Suita 565-0871, Japan
| | - Akiyoshi Sawada
- Institute
for Materials Chemistry and Engineering and International Research
Center for Molecular Systems, Kyushu University, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takashi Kamachi
- Institute
for Materials Chemistry and Engineering and International Research
Center for Molecular Systems, Kyushu University, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute
for Materials Chemistry and Engineering and International Research
Center for Molecular Systems, Kyushu University, Nishi-ku, Fukuoka 819-0395, Japan
- Elements
Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Nishikyo-ku, Kyoto 615-8520, 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
| |
Collapse
|
33
|
Abe M, Yamada H, Okawara T, Fujitsuka M, Majima T, Hisaeda Y. Covalently Attached Porphycene–Ferrocene Dyads: Synthesis, Redox-Switched Emission, and Observation of the Charge-Separated State. Inorg Chem 2015; 55:7-9. [DOI: 10.1021/acs.inorgchem.5b02078] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masaaki Abe
- Department of Chemistry
and Biochemistry, Graduate School of Engineering, Kyushu University, 744
Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Hiroaki Yamada
- Department of Chemistry
and Biochemistry, Graduate School of Engineering, Kyushu University, 744
Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Toru Okawara
- Department of Chemistry
and Biochemistry, Graduate School of Engineering, Kyushu University, 744
Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Mamoru Fujitsuka
- Institute
of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka
8-1, Ibaraki, Osaka 567-0047, Japan
| | - Tetsuro Majima
- Institute
of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka
8-1, Ibaraki, Osaka 567-0047, Japan
| | - Yoshio Hisaeda
- Department of Chemistry
and Biochemistry, Graduate School of Engineering, Kyushu University, 744
Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center
for Molecular Systems, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| |
Collapse
|
34
|
Abe M, Futagawa H, Ono T, Yamada T, Kimizuka N, Hisaeda Y. An Electropolymerized Crystalline Film Incorporating Axially-Bound Metalloporphycenes: Remarkable Reversibility, Reproducibility, and Coloration Efficiency of Ruthenium(II/III)-Based Electrochromism. Inorg Chem 2015; 54:11061-3. [DOI: 10.1021/acs.inorgchem.5b02129] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Masaaki Abe
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Hiroki Futagawa
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Toshikazu Ono
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Molecular
Systems (CMS), Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Teppei Yamada
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Molecular
Systems (CMS), Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Nobuo Kimizuka
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Molecular
Systems (CMS), Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshio Hisaeda
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Molecular
Systems (CMS), Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| |
Collapse
|
35
|
Cowie TY, Kennedy L, Żurek JM, Paterson MJ, Bebbington MWP. Crossed McMurry Coupling Reactions for Porphycenic Macrocycles: Non-Statistical Selectivity and Rationalisation. European J Org Chem 2015. [PMID: 26213484 PMCID: PMC4502767 DOI: 10.1002/ejoc.201500221] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Crossed McMurry reactions of bifuran- or bithiophenedicarbaldehydes with bipyrroledicarbaldehydes have been studied for the first time. Only those porphycenic macrocycles derived from homocoupled McMurry products were formed. The results are explained by using both density functional theory and electron propagator computations to model the electron affinity of the dialdehyde starting materials. It was predicted that bifuran\bithiophene cross-coupling would indeed occur, and this was demonstrated by the first synthesis of a novel dioxa,dithio hetero-porphycenoid annulene. This approach will allow the prior identification of viable substrates for related crossed McMurry reactions.
Collapse
Affiliation(s)
- Thomas Y Cowie
- School of EPS - Institute of Chemical Sciences, Heriot-Watt University Riccarton, Edinburgh, EH14 4AS, UK E-mail: http://www.theophotochem.eps.hw.ac.uk/Home.html , http://www.hw.ac.uk/schools/engineering-physical-sciences/staff-directory/mb.htm
| | - Lorna Kennedy
- School of EPS - Institute of Chemical Sciences, Heriot-Watt University Riccarton, Edinburgh, EH14 4AS, UK E-mail: http://www.theophotochem.eps.hw.ac.uk/Home.html , http://www.hw.ac.uk/schools/engineering-physical-sciences/staff-directory/mb.htm
| | - Justyna M Żurek
- School of EPS - Institute of Chemical Sciences, Heriot-Watt University Riccarton, Edinburgh, EH14 4AS, UK E-mail: http://www.theophotochem.eps.hw.ac.uk/Home.html , http://www.hw.ac.uk/schools/engineering-physical-sciences/staff-directory/mb.htm
| | - Martin J Paterson
- School of EPS - Institute of Chemical Sciences, Heriot-Watt University Riccarton, Edinburgh, EH14 4AS, UK E-mail: http://www.theophotochem.eps.hw.ac.uk/Home.html , http://www.hw.ac.uk/schools/engineering-physical-sciences/staff-directory/mb.htm
| | - Magnus W P Bebbington
- School of EPS - Institute of Chemical Sciences, Heriot-Watt University Riccarton, Edinburgh, EH14 4AS, UK E-mail: http://www.theophotochem.eps.hw.ac.uk/Home.html , http://www.hw.ac.uk/schools/engineering-physical-sciences/staff-directory/mb.htm
| |
Collapse
|
36
|
Okawara T, Abe M, Ashigara S, Hisaeda Y. Molecular structures, redox properties, and photosubstitution of ruthenium(II) carbonyl complexes of porphycene. J PORPHYR PHTHALOCYA 2015. [DOI: 10.1142/s1088424614501120] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Two ruthenium(II) carbonyl complexes of porphycene, (carbonyl)(pyridine)(2,7,12,17-tetra-n-propylporphycenato)ruthenium(II) (1) and (carbonyl)(pyridine)(2,3,6,7,12,13,16,17-octaethylpor-phycenato)ruthenium(II) (2), have been structurally characterized by single-crystal X-ray diffraction analysis. Cyclic voltammetry has revealed that the porphycene complexes undergo multiple oxidations and reductions in dichloromethane and the reduction potentials are highly positive compared to porphyrin analogs. UV-light irradiation (400 nm or shorter wavelength region) of a benzene solution of 1 and 2 containing external pyridine leads to dissociation of the carbonyl ligand from the ruthenium(II) centers to give the corresponding bis-pyridine complexes. The identical reaction has been also studied for a porphyrin derivative (carbonyl)(pyridine)(2,3,7,8,12,13,17,18-octaethylporphyriato)ruthenum(II) (3). The first-order kinetic analysis has revealed that the photosubstitution of all of the compounds occurs in the order of 10-3 s-1 at 298 K but proceeds faster for complexes of porphycene (1 and 2) than that of porphyrin (3).
Collapse
Affiliation(s)
- Toru Okawara
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Masaaki Abe
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shiho Ashigara
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshio Hisaeda
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Molecular Systems (CMS), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| |
Collapse
|
37
|
Tyagi V, Bonn RB, Fasan R. Intermolecular carbene S-H insertion catalysed by engineered myoglobin-based catalysts†. Chem Sci 2015; 6:2488-2494. [PMID: 26101581 PMCID: PMC4474517 DOI: 10.1039/c5sc00080g] [Citation(s) in RCA: 141] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The first example of a biocatalytic strategy for the synthesis of thioethers via an intermolecular carbene S–H insertion reaction is reported.
The first example of a biocatalytic strategy for the synthesis of thioethers via an intermolecular carbene S–H insertion reaction is reported. Engineered variants of sperm whale myoglobin were found to efficiently catalyze this C–S bond forming transformation across a diverse set of aryl and alkyl mercaptan substrates and α-diazoester carbene donors, providing high conversions (60–99%) and high numbers of catalytic turnovers (1100–5400). Furthermore, the enantioselectivity of these biocatalysts could be tuned through mutation of amino acid residues within the distal pocket of the hemoprotein, leading to myoglobin variants capable of supporting asymmetric S–H insertions with up to 49% ee. Rearrangement experiments support a mechanism involving the formation of a sulfonium ylide generated upon attack of the thiol substrate to a heme-bound carbene intermediate.
Collapse
Affiliation(s)
- Vikas Tyagi
- Department of Chemistry, University of Rochester, 120 Trustee Rd, Rochester, New York 14627, USA
| | - Rachel B Bonn
- Department of Chemistry, University of Rochester, 120 Trustee Rd, Rochester, New York 14627, USA
| | - Rudi Fasan
- Department of Chemistry, University of Rochester, 120 Trustee Rd, Rochester, New York 14627, USA
| |
Collapse
|
38
|
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]
|
39
|
Rana A, Panda PK. β-Tetrachlorotetramethoxyporphycenes: positional effect of substituents on structure and photophysical properties. Chem Commun (Camb) 2015; 51:12239-42. [DOI: 10.1039/c5cc03867g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the regiospecific synthesis of the first chloro-substituted porphycenes as two positional isomers of β-tetrachlorotetramethoxyporphycene.
Collapse
Affiliation(s)
- Anup Rana
- School of Chemistry and Advance Centre of Research in High Energy Materials (ACRHEM)
- University of Hyderabad
- Hyderabad-500046
- India
| | - Pradeepta K. Panda
- School of Chemistry and Advance Centre of Research in High Energy Materials (ACRHEM)
- University of Hyderabad
- Hyderabad-500046
- India
| |
Collapse
|
40
|
Bordeaux M, Tyagi V, Fasan R. Highly Diastereoselective and Enantioselective Olefin Cyclopropanation Using Engineered Myoglobin-Based Catalysts. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409928] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
41
|
Bordeaux M, Tyagi V, Fasan R. Highly diastereoselective and enantioselective olefin cyclopropanation using engineered myoglobin-based catalysts. Angew Chem Int Ed Engl 2014; 54:1744-8. [PMID: 25538035 DOI: 10.1002/anie.201409928] [Citation(s) in RCA: 217] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Indexed: 11/12/2022]
Abstract
Using rational design, an engineered myoglobin-based catalyst capable of catalyzing the cyclopropanation of aryl-substituted olefins with catalytic proficiency (up to 46,800 turnovers) and excellent diastereo- and enantioselectivity (98-99.9%) was developed. This transformation could be carried out in the presence of up to 20 g L(-1) olefin substrate with no loss in diastereo- and/or enantioselectivity. Mutagenesis and mechanistic studies support a cyclopropanation mechanism mediated by an electrophilic, heme-bound carbene species and a model is provided to rationalize the stereopreference of the protein catalyst. This work shows that myoglobin constitutes a promising and robust scaffold for the development of biocatalysts with carbene-transfer reactivity.
Collapse
Affiliation(s)
- Melanie Bordeaux
- Department of Chemistry, University of Rochester, 120 Trustee Road, Rochester, NY 14627 (USA)
| | | | | |
Collapse
|
42
|
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]
|
43
|
Nishimura R, Matsumoto D, Shibata T, Yanagisawa S, Ogura T, Tai H, Matsuo T, Hirota S, Neya S, Suzuki A, Yamamoto Y. Electronic Control of Ligand-Binding Preference of a Myoglobin Mutant. Inorg Chem 2014; 53:9156-65. [DOI: 10.1021/ic5011924] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ryu Nishimura
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Daichi Matsumoto
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Tomokazu Shibata
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Sachiko Yanagisawa
- Department of Life
Science, Graduate School of Life Science, University of Hyogo, RSC-UH Leading Program Center, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Takashi Ogura
- Department of Life
Science, Graduate School of Life Science, University of Hyogo, RSC-UH Leading Program Center, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Hulin Tai
- Graduate School of
Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Takashi Matsuo
- Graduate School of
Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Shun Hirota
- Graduate School of
Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Saburo Neya
- Department of Physical Chemistry, Graduate School of Pharmaceutical
Sciences, Chiba University, Chuoh-Inohana, Chiba 260-8675, Japan
| | - Akihiro Suzuki
- Department
of Materials Engineering, Nagaoka National College of Technology, Nagaoka 940-8532, Japan
| | - Yasuhiko Yamamoto
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
- Life Science
Center of Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba 305-8577, Japan
| |
Collapse
|
44
|
Okabe T, Kuzuhara D, Suzuki M, Aratani N, Yamada H. Synthesis and Electrochemical Properties of Porphycene–Diketopyrrolopyrrole Conjugates. Org Lett 2014; 16:3508-11. [DOI: 10.1021/ol5014608] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Takuya Okabe
- Graduate
School of Materials Science, Nara Institute of Science and Technology, 8916-5, Takayama-cho, Ikoma 630-0192, Japan
| | - Daiki Kuzuhara
- Graduate
School of Materials Science, Nara Institute of Science and Technology, 8916-5, Takayama-cho, Ikoma 630-0192, Japan
| | - Mitsuharu Suzuki
- Graduate
School of Materials Science, Nara Institute of Science and Technology, 8916-5, Takayama-cho, Ikoma 630-0192, Japan
| | - Naoki Aratani
- Graduate
School of Materials Science, Nara Institute of Science and Technology, 8916-5, Takayama-cho, Ikoma 630-0192, Japan
| | - Hiroko Yamada
- Graduate
School of Materials Science, Nara Institute of Science and Technology, 8916-5, Takayama-cho, Ikoma 630-0192, Japan
- CREST, JST, Saitama 102-0076, Japan
| |
Collapse
|
45
|
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: 340] [Impact Index Per Article: 34.0] [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
| | | |
Collapse
|
46
|
Lin Y, Wang J, Lu Y. Functional tuning and expanding of myoglobin by rational protein design. Sci China Chem 2014. [DOI: 10.1007/s11426-014-5063-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
47
|
Nishimura R, Shibata T, Ishigami I, Ogura T, Tai H, Nagao S, Matsuo T, Hirota S, Shoji O, Watanabe Y, Imai K, Neya S, Suzuki A, Yamamoto Y. Electronic Control of Discrimination between O2 and CO in Myoglobin Lacking the Distal Histidine Residue. Inorg Chem 2013; 53:1091-9. [DOI: 10.1021/ic402625s] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ryu Nishimura
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Tomokazu Shibata
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Izumi Ishigami
- Department of Life Science, Graduate
School of Life Science, University of Hyogo, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Takashi Ogura
- Department of Life Science, Graduate
School of Life Science, University of Hyogo, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Hulin Tai
- Graduate School of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Satoshi Nagao
- Graduate School of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Takashi Matsuo
- Graduate School of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Shun Hirota
- Graduate School of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Osami Shoji
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Yoshihito Watanabe
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Kiyohiro Imai
- Department of Frontier Bioscience, Faculty
of Bioscience and Applied Chemistry, Hosei University, Koganei, Tokyo 184-8584, Japan
| | - Saburo Neya
- Department of Physical Chemistry, Graduate
School of Pharmaceutical Sciences, Chiba University, Chuoh-Inohana, Chiba 260-8675, Japan
| | - Akihiro Suzuki
- Department of Materials Engineering, Nagaoka National College of Technology, Nagaoka 940-8532, Japan
| | - Yasuhiko Yamamoto
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| |
Collapse
|
48
|
Affiliation(s)
- Anup Rana
- School
of Chemistry and Advance Centre of Research in High Energy Materials
(ACRHEM), University of Hyderabad, Hyderabad-500046, India
| | - Pradeepta K. Panda
- School
of Chemistry and Advance Centre of Research in High Energy Materials
(ACRHEM), University of Hyderabad, Hyderabad-500046, India
| |
Collapse
|
49
|
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.
Collapse
Affiliation(s)
- Ying-Wu Lin
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001 (China)
| | | | | |
Collapse
|
50
|
Brenner W, Malig J, Costa RD, Guldi DM, Jux N. Poly-ortho-functionalizable tetraarylporphycene platform-synthesis of octacationic derivatives towards the layer-by-layer design of versatile graphene oxide photoelectrodes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:2314-2249. [PMID: 23239015 DOI: 10.1002/adma.201203459] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Revised: 10/23/2012] [Indexed: 06/01/2023]
Affiliation(s)
- Wolfgang Brenner
- Department of Chemistry & Pharmacy and Interdisciplinary Center for Molecular Materials, Friedrich-Alexander-Universitat, Erlangen-Nurnberg, 91054 Erlangen, Germany
| | | | | | | | | |
Collapse
|