1
|
Paradisi A, Bellei M, Bortolotti CA, Di Rocco G, Ranieri A, Borsari M, Sola M, Battistuzzi G. Effects of removal of the axial methionine heme ligand on the binding of S. cerevisiae iso-1 cytochrome c to cardiolipin. J Inorg Biochem 2024; 252:112455. [PMID: 38141433 DOI: 10.1016/j.jinorgbio.2023.112455] [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: 09/23/2023] [Revised: 12/05/2023] [Accepted: 12/13/2023] [Indexed: 12/25/2023]
Abstract
The cleavage of the axial S(Met) - Fe bond in cytochrome c (cytc) upon binding to cardiolipin (CL), a glycerophospholipid of the inner mitochondrial membrane, is one of the key molecular changes that impart cytc with (lipo)peroxidase activity essential to its pro-apoptotic function. In this work, UV - VIS, CD, MCD and fluorescence spectroscopies were used to address the role of the Fe - M80 bond in controlling the cytc-CL interaction, by studying the binding of the Met80Ala (M80A) variant of S. cerevisiae iso-1 cytc (ycc) to CL liposomes in comparison with the wt protein [Paradisi et al. J. Biol. Inorg. Chem. 25 (2020) 467-487]. The results show that the integrity of the six-coordinate heme center along with the distal heme site containing the Met80 ligand is a not requisite for cytc binding to CL. Indeed, deletion of the Fe - S(Met80) bond has a little impact on the mechanism of ycc-CL interaction, although it results in an increased heme accessibility to solvent and a reduced structural stability of the protein. In particular, M80A features a slightly tighter binding to CL at low CL/cytc ratios compared to wt ycc, possibly due to the lift of some constraints to the insertion of the CL acyl chains into the protein hydrophobic core. M80A binding to CL maintains the dependence on the CL-to-cytc mixing scheme displayed by the wt species.
Collapse
Affiliation(s)
- Alessandro Paradisi
- Department of Life Sciences, University of Modena and Reggio Emilia, via Campi 103, 41126 Modena, Italy
| | - Marzia Bellei
- Department of Life Sciences, University of Modena and Reggio Emilia, via Campi 103, 41126 Modena, Italy
| | - Carlo Augusto Bortolotti
- Department of Life Sciences, University of Modena and Reggio Emilia, via Campi 103, 41126 Modena, Italy
| | - Giulia Di Rocco
- Department of Life Sciences, University of Modena and Reggio Emilia, via Campi 103, 41126 Modena, Italy
| | - Antonio Ranieri
- Department of Life Sciences, University of Modena and Reggio Emilia, via Campi 103, 41126 Modena, Italy
| | - Marco Borsari
- Department of Chemistry and Geology, University of Modena and Reggio Emilia, via Campi 103, 41126 Modena, Italy
| | - Marco Sola
- Department of Life Sciences, University of Modena and Reggio Emilia, via Campi 103, 41126 Modena, Italy
| | - Gianantonio Battistuzzi
- Department of Chemistry and Geology, University of Modena and Reggio Emilia, via Campi 103, 41126 Modena, Italy.
| |
Collapse
|
2
|
Nakajima Y, Momotake A, Suzuki A, Neya S, Yamamoto Y. Nature of a H 2O Molecule Confined in the Hydrophobic Interface between the Heme and G-Quartet Planes in a Heme-DNA Complex. Biochemistry 2022; 61:523-534. [PMID: 35230084 DOI: 10.1021/acs.biochem.1c00751] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Heme binds selectively to the 3'-terminal G-quartet of all parallel G-quadruplex DNAs to form stable heme-DNA complexes. Interestingly, the heme-DNA complexes exhibit various spectroscopic and functional properties similar to those of hemoproteins. Since the nature of the axial ligands is crucial in determining the physicochemical properties of heme, identification and characterization of the axial ligands in a heme-DNA complex are essential to elucidate the structure-function relationship in the complex. NMR studies of a complex possessing a low-spin ferric heme with a water molecule (H2O) and cyanide ion (CN-) as the axial ligands allowed detailed characterization of the physicochemical nature of the axial H2O ligand. We found that the in-plane asymmetry of the heme electronic structure of the complex is not largely affected by the axial H2O coordination, indicating that the H2O confined in the hydrophobic interface between the heme and G-quartet planes of the complex rotates about the coordination bond with respect to the heme. The effect of the hydrogen(H)/deuterium(D) isotope replacement of the axial H2O on the heme electronic structure was manifested in the isotope shifts of paramagnetically shifted heme methyl proton signals of the complex in such a manner that three resolved peaks associated with axial H2O, HDO, and D2O were observed for each of the heme methyl proton signals. These findings provide not only the basis for an understanding of the nature of the unique axial H2O but also an insight into the molecular mechanism responsible for the control of the heme reactivity in the heme-DNA complex.
Collapse
Affiliation(s)
- Yusuke Nakajima
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Atsuya Momotake
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Akihiro Suzuki
- Department of Materials Engineering, National Institute of Technology, Nagaoka College, Nagaoka 940-8532, Japan
| | - Saburo Neya
- Department of Physical Chemistry, Graduate School of Pharmaceutical Sciences, Chiba University, Chuoh-Inohana, Chiba 260-8675, Japan
| | - Yasuhiko Yamamoto
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| |
Collapse
|
3
|
Mirgaux M, Leherte L, Wouters J. Temporary Intermediates of L-Trp Along the Reaction Pathway of Human Indoleamine 2,3-Dioxygenase 1 and Identification of an Exo Site. Int J Tryptophan Res 2021; 14:11786469211052964. [PMID: 34949925 PMCID: PMC8689440 DOI: 10.1177/11786469211052964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 09/19/2021] [Indexed: 12/28/2022] Open
Abstract
Protein dynamics governs most of the fundamental processes in the human body.
Particularly, the dynamics of loops located near an active site can be involved
in the positioning of the substrate and the reaction mechanism. The
understanding of the functioning of dynamic loops is therefore a challenge, and
often requires the use of a multi-disciplinary approach mixing, for example,
crystallographic experiments and molecular dynamics simulations. In the present
work, the dynamic behavior of the JK-loop of the human indoleamine
2,3-dioxygenase 1 hemoprotein, a target for immunotherapy, is investigated. To
overcome the lack of knowledge on this dynamism, the study reported here is
based on 3 crystal structures presenting different conformations of the loop,
completed with molecular dynamics trajectories and MM-GBSA analyses, in order to
trace the reaction pathway of the enzyme. In addition, the crystal structures
identify an exo site in the small unit of the enzyme, that is populated
redundantly by the substrate or the product of the reaction. The role of this
newer reported exo site still needs to be investigated.
Collapse
Affiliation(s)
- Manon Mirgaux
- Laboratoire de Chimie Biologique Structurale, Namur Institute of Structured Matter (NISM), Namur Research Institute for Life Sciences (NARILIS), University of Namur, Department of Chemistry, Rue de Bruxelles 61, 5000 Namur, Belgium
| | - Laurence Leherte
- Laboratoire de Chimie Biologique Structurale, Namur Institute of Structured Matter (NISM), Namur Research Institute for Life Sciences (NARILIS), University of Namur, Department of Chemistry, Rue de Bruxelles 61, 5000 Namur, Belgium
| | - Johan Wouters
- Laboratoire de Chimie Biologique Structurale, Namur Institute of Structured Matter (NISM), Namur Research Institute for Life Sciences (NARILIS), University of Namur, Department of Chemistry, Rue de Bruxelles 61, 5000 Namur, Belgium
| |
Collapse
|
4
|
Karnaukh EA, Bravaya KB. The redox potential of a heme cofactor in Nitrosomonas europaea cytochrome c peroxidase: a polarizable QM/MM study. Phys Chem Chem Phys 2021; 23:16506-16515. [PMID: 34017969 PMCID: PMC11178132 DOI: 10.1039/d0cp06632j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Redox reactions are crucial to biological processes that protect organisms against oxidative stress. Metalloenzymes, such as peroxidases which reduce excess reactive oxygen species into water, play a key role in detoxification mechanisms. Here we present the results of a polarizable QM/MM study of the reduction potential of the electron transfer heme in the cytochrome c peroxidase of Nitrosomonas europaea. We have found that environment polarization does not substantially affect the computed value of the redox potential. Particular attention has been given to analyzing the role of electrostatic interactions within the protein environment and the solvent on tuning the redox potential of the heme co-factor. We have found that the electrostatic interactions predominantly explain the fluctuations of the vertical ionization/attachment energies of the heme for the sampled configurations, and that the long range electrostatic interactions (up to 40 Å) contribute substantially to the absolute values of the vertical energy gaps.
Collapse
|
5
|
Hagiwara S, Momotake A, Ogura T, Yanagisawa S, Suzuki A, Neya S, Yamamoto Y. Effects of Heme Electronic Structure and Local Heme Environment on Catalytic Activity of a Peroxidase-Mimicking Heme-DNAzyme. Inorg Chem 2021; 60:11206-11213. [PMID: 34289695 DOI: 10.1021/acs.inorgchem.1c01179] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The catalytic cycle of a peroxidase-mimicking heme-DNAzyme involves an iron(IV)oxo porphyrin π-cation radical intermediate known as compound I formed through heterolytic O-O bond cleavage of an Fe3+-bound hydroperoxo ligand (Fe-OOH) in compound 0, like that of a heme enzyme such as horseradish peroxidase (HRP). Peroxidase assaying of complexes composed of chemically modified hemes possessing various electron densities of the heme iron atom (ρFe) and parallel-stranded tetrameric G-quadruplex DNAs of oligonucleotides d(TTAGGG), d(TTAGGGT), and d(TTAGGGA) was performed to elucidate the effects of the heme electronic structure and local heme environment on the catalytic activity of the heme-DNAzyme. The study revealed that the DNAzyme activity is enhanced through an increase in the ρFe and general base catalysis of the adenine base adjacent to the heme, which are reminiscent of the "push" and "pull" mechanisms in the catalytic cycle of HRP, respectively, and that the activity of the heme-DNAzyme can be independently controlled through the heme electronic structure and local heme environment. These findings allow a deeper understanding of the structure-function relationship of the peroxidase-mimicking heme-DNAzyme.
Collapse
Affiliation(s)
- Shota Hagiwara
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Atsuya Momotake
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Takashi Ogura
- Department of Life Science, Graduate School of Life Science, University of Hyogo, Ako-gun, Hyogo 678-1297, Japan
| | - Sachiko Yanagisawa
- Department of Life Science, Graduate School of Science, University of Hyogo, Ako-gun, Hyogo 678-1297, Japan
| | - Akihiro Suzuki
- Department of Material Engineering, National Institute of Technology, Nagaoka College, Nagaoka 940-8532, Japan
| | - Saburo Neya
- Department of Physical Chemistry, Graduate School of Pharmaceutical Sciences, Chiba University, Chuoh-Inohana, Chiba 260-8675, Japan
| | - Yasuhiko Yamamoto
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan.,Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, Tsukuba 305-8571, Japan
| |
Collapse
|
6
|
Hua X, Wang Z, Wang Z, Chen L, Zhou Z, Ouyang J, Deng K, Yang X, Huang H. De Novo Development of a Universal Biosensing Platform by Rapid Direct Native Protein Modification. Anal Chem 2021; 93:5291-5300. [PMID: 33734672 DOI: 10.1021/acs.analchem.1c00341] [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
An innovative biosensing assay was developed for simplified, cost-effective, and sensitive detection. By rapid, direct treatment of target proteins with iron porphyrin (TPPFe) in situ, a carboxyl group of amino acid conjugates with an Fe atom of the TPPFe molecule, forming a stable protein complex. We have shown that this complex not only maintains the integrity and functions of original proteins but also acquires peroxidase activity that can turn TMB to a comparably visible signal like that in ELISA. This study is unique since such conversion is difficult to achieve with standard chemical modification or molecular biology methods. In addition, the proposed immunoassay is superior to traditional ELISA as it eliminates an expensive and complicated cross-linking process of an enzyme-labeled antibody. From a practical point of view, we extended this assay to rapid detection of clinically relevant proteins and glucose in blood samples. The results show that this simple immunoassay provides clinical diagnosis, food safety, and environmental monitoring in an easy-to-implement manner.
Collapse
Affiliation(s)
- Xinyi Hua
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, China.,Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Zhifang Wang
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, China.,Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Ziqi Wang
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, China.,Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Linlin Chen
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, China.,Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Zaichun Zhou
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, China.,Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Junlin Ouyang
- School of Computer Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Keqin Deng
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, China.,Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Xiumei Yang
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, China.,Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Haowen Huang
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, China.,Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| |
Collapse
|
7
|
Yamamoto Y, Hasegawa K, Shibata T, Momotake A, Ogura T, Yanagisawa S, Neya S, Suzuki A, Kobayashi Y, Saito M, Seto M, Ohta T. Effect of the Electron Density of the Heme Fe Atom on the Nature of Fe-O 2 Bonding in Oxy Myoglobin. Inorg Chem 2021; 60:1021-1027. [PMID: 33356193 DOI: 10.1021/acs.inorgchem.0c03123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Mössbauer spectroscopy has been used to characterize oxygenated myoglobins (oxy Mbs) reconstituted with native and chemically modified 57Fe-enriched heme cofactors with different electron densities of the heme Fe atom (ρFe) and to elucidate the effect of a change in the ρFe on the nature of the bond between heme Fe and oxygen (O2), i.e., the Fe-O2 bond, in the protein. Quadrupole splitting (ΔEQ) was found to decrease with decreasing ρFe, and the observed ρFe-dependent ΔEQ confirmed an increase in the contribution of the ferric-superoxide (Fe3+-O2-) form to the resonance hybrid of the Fe-O2 fragment with decreasing ρFe. These observations explicitly accounted for the lowering of O2 affinity of the protein due to an increase in the O2 dissociation rate and a decrease in the autoxidation reaction rate of oxy Mb through decreasing H+ affinity of the bound ligand with decreasing ρFe. Therefore, the present study demonstrated the mechanism underlying the electronic control of O2 affinity and the autoxidation of the protein through the heme electronic structure. Carbon monoxide (CO) adducts of reconstituted Mbs (CO-Mbs) were similarly characterized, and we found that the resonance between the two canonical forms of the Fe-CO fragment was also affected by a change in ρFe. Thus, the nature of the Fe-ligand bond in the protein was found to be affected by the ρFe.
Collapse
Affiliation(s)
- Yasuhiko Yamamoto
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Kazuyasu Hasegawa
- Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, Tsukuba 305-8571, Japan
| | - Tomokazu Shibata
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Atsuya Momotake
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Takashi Ogura
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Sachiko Yanagisawa
- Department of Life Science, Graduate School of Life Science, University of Hyogo, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Saburo Neya
- Department of Life Science, Graduate School of Life Science, University of Hyogo, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Akihiro Suzuki
- Department of Physical Chemistry, Graduate School of Pharmaceutical Sciences, Chiba University, Chuoh-Inohana, Chiba 260-8675, Japan
| | - Yasuhiro Kobayashi
- Department of Material Engineering, National Institute of Technology, Nagaoka College, Nagaoka 940-8532, Japan
| | - Makina Saito
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Osaka 590-0494, Japan
| | - Makoto Seto
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Osaka 590-0494, Japan
| | - Takehiro Ohta
- Department of Applied Chemistry, Faculty of Engineering, Sanyo-Onoda City University, Sanyo-Onoda, Yamaguchi 756-0884, Japan
| |
Collapse
|
8
|
Hayasaka K, Shibata T, Sugahara A, Momotake A, Matsui T, Neya S, Ishizuka T, Xu Y, Yamamoto Y. Characterization of Structure and Catalytic Activity of a Complex between Heme and an All Parallel-Stranded Tetrameric G-Quadruplex Formed from DNA/RNA Chimera Sequence d(TTA)r(GGG)dT. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200013] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Kosuke Hayasaka
- Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Tomokazu Shibata
- Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Aya Sugahara
- Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Atsuya Momotake
- Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Toru Matsui
- Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Saburo Neya
- Department of Physical Chemistry, Graduate School of Pharmaceutical Sciences, Chiba University, Chuoh-Inohana, Chiba 260-8675, Japan
| | - Takumi Ishizuka
- Division of Chemistry, Department of Medical Sciences, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan
| | - Yan Xu
- Division of Chemistry, Department of Medical Sciences, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan
| | - Yasuhiko Yamamoto
- Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
- Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| |
Collapse
|
9
|
Négrerie M. Iron transitions during activation of allosteric heme proteins in cell signaling. Metallomics 2020; 11:868-893. [PMID: 30957812 DOI: 10.1039/c8mt00337h] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Allosteric heme proteins can fulfill a very large number of different functions thanks to the remarkable chemical versatility of heme through the entire living kingdom. Their efficacy resides in the ability of heme to transmit both iron coordination changes and iron redox state changes to the protein structure. Besides the properties of iron, proteins may impose a particular heme geometry leading to distortion, which allows selection or modulation of the electronic properties of heme. This review focusses on the mechanisms of allosteric protein activation triggered by heme coordination changes following diatomic binding to proteins as diverse as the human NO-receptor, cytochromes, NO-transporters and sensors, and a heme-activated potassium channel. It describes at the molecular level the chemical capabilities of heme to achieve very different tasks and emphasizes how the properties of heme are determined by the protein structure. Particularly, this reviews aims at giving an overview of the exquisite adaptability of heme, from bacteria to mammals.
Collapse
Affiliation(s)
- Michel Négrerie
- Laboratoire d'Optique et Biosciences, INSERM, CNRS, Ecole Polytechnique, 91120 Palaiseau, France.
| |
Collapse
|
10
|
Sahoo D, Roy S, Khan FST, Singh AK, Rath SP. Stabilizing intermediate-spin state in iron(III) porphyrins. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.02.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
11
|
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
|
12
|
Shinomiya R, Katahira Y, Araki H, Shibata T, Momotake A, Yanagisawa S, Ogura T, Suzuki A, Neya S, Yamamoto Y. Characterization of Catalytic Activities and Heme Coordination Structures of Heme-DNA Complexes Composed of Some Chemically Modified Hemes and an All Parallel-Stranded Tetrameric G-Quadruplex DNA Formed from d(TTAGGG). Biochemistry 2018; 57:5930-5937. [PMID: 30207701 DOI: 10.1021/acs.biochem.8b00793] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Heme binds selectively to the 3'-terminal G-quartet (G6 G-quartet) of an all parallel-stranded tetrameric G-quadruplex DNA, [d(TTAGGG)]4, to form a heme-DNA complex. Complexes between [d(TTAGGG)]4 and a series of chemically modified hemes possessing a heme Fe atom with a variety of electron densities were characterized in terms of their peroxidase activities to evaluate the effect of a change in the electron density of the heme Fe atom (ρFe) on their activities. The peroxidase activity of a complex decreased with a decreasing ρFe, supporting the idea that the activity of the complex is elicited through a reaction mechanism similar to that of a peroxidase. In the ferrous heme-DNA complex, carbon monoxide (CO) can bind to the heme Fe atom on the side of the heme opposite the G6 G-quartet, and a water molecule (H2O) is coordinated to the Fe atom as another axial ligand, trans to the CO. The stretching frequencies of Fe-bound CO (νCO) and the Fe-C bond (νFe-C) of CO adducts of the heme-DNA complexes were determined to investigate the structural and electronic natures of the axial ligands coordinated to the heme Fe atom. Comparison of the νCO and νFe-C values of the heme-DNA complexes with those of myoglobin (Mb) revealed that the donor strength of the axial ligation trans to the CO in a complex is considerably weaker than that of the proximal histidine in Mb, as expected from the coordination of H2O trans to the CO in the complex.
Collapse
Affiliation(s)
- Ryosuke Shinomiya
- Department of Chemistry , University of Tsukuba , Tsukuba 305-8571 , Japan
| | - Yuya Katahira
- Department of Chemistry , University of Tsukuba , Tsukuba 305-8571 , Japan
| | - Haruka Araki
- Department of Chemistry , University of Tsukuba , Tsukuba 305-8571 , Japan
| | - Tomokazu Shibata
- Department of Chemistry , University of Tsukuba , Tsukuba 305-8571 , Japan
| | - Atsuya Momotake
- Department of Chemistry , University of Tsukuba , Tsukuba 305-8571 , Japan
| | - Sachiko Yanagisawa
- Graduate School of Life Science , University of Hyogo , Hyogo 678-1297 , Japan
| | - Takashi Ogura
- Graduate School of Life Science , University of Hyogo , Hyogo 678-1297 , Japan
| | - Akihiro Suzuki
- Department of Materials Engineering, National Institute of Technology , Nagaoka College , Nagaoka 940-8532 , Japan
| | - Saburo Neya
- Department of Physical Chemistry, Graduate School of Pharmaceutical Sciences , Chiba University , Chuoh-Inohana , Chiba 260-8675 , Japan
| | - Yasuhiko Yamamoto
- Department of Chemistry , University of Tsukuba , Tsukuba 305-8571 , Japan.,Tsukuba Research Center for Energy Materials Science (TREMS) , University of Tsukuba , Tsukuba 305-8571 , Japan.,Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA) , University of Tsukuba , Tsukuba 305-8577 , Japan
| |
Collapse
|
13
|
Sterically induced distortions of nickel(II) porphyrins – Comprehensive investigation by DFT calculations and resonance Raman spectroscopy. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.12.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
14
|
Neya S, Yoneda T, Hoshino T, Kawaguchi AT, Suzuki M. Synthesis of type III isomers of diacetyldeutero-, hemato-, and protoporphyrins with the use of Knorr's pyrrole. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.05.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
15
|
Sahoo D, Guchhait T, Rath SP. Spin Modulation in Highly Distorted FeIIIPorphyrinates by Using Axial Coordination and Their π-Cation Radicals. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600255] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dipankar Sahoo
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
| | - Tapas Guchhait
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
| | - Sankar Prasad Rath
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
| |
Collapse
|
16
|
Unique coupling of mono- and dioxygenase chemistries in a single active site promotes heme degradation. Proc Natl Acad Sci U S A 2016; 113:3779-84. [PMID: 27006503 DOI: 10.1073/pnas.1523333113] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Bacterial pathogens must acquire host iron for survival and colonization. Because free iron is restricted in the host, numerous pathogens have evolved to overcome this limitation by using a family of monooxygenases that mediate the oxidative cleavage of heme into biliverdin, carbon monoxide, and iron. However, the etiological agent of tuberculosis, Mycobacterium tuberculosis, accomplishes this task without generating carbon monoxide, which potentially induces its latent state. Here we show that this unusual heme degradation reaction proceeds through sequential mono- and dioxygenation events within the single active center of MhuD, a mechanism unparalleled in enzyme catalysis. A key intermediate of the MhuD reaction is found to be meso-hydroxyheme, which reacts with O2 at an unusual position to completely suppress its monooxygenation but to allow ring cleavage through dioxygenation. This mechanistic change, possibly due to heavy steric deformation of hydroxyheme, rationally explains the unique heme catabolites of MhuD. Coexistence of mechanistically distinct functions is a previously unidentified strategy to expand the physiological outcome of enzymes, and may be applied to engineer unique biocatalysts.
Collapse
|
17
|
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
|
18
|
Yamamoto Y, Kinoshita M, Katahira Y, Shimizu H, Di Y, Shibata T, Tai H, Suzuki A, Neya S. Characterization of Heme–DNA Complexes Composed of Some Chemically Modified Hemes and Parallel G-Quadruplex DNAs. Biochemistry 2015; 54:7168-77. [DOI: 10.1021/acs.biochem.5b00989] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yasuhiko Yamamoto
- Department
of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Masashi Kinoshita
- Department
of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Yuya Katahira
- Department
of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Haruna Shimizu
- Department
of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Yue Di
- Department
of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Tomokazu Shibata
- Department
of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Hulin Tai
- Graduate
School of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Akihiro Suzuki
- Department
of Materials Engineering, National Institute of Technology, Nagaoka College, Nagaoka 940-8532, Japan
| | - Saburo Neya
- Department
of Physical Chemistry, Graduate School of Pharmaceutical Sciences, Chiba University, Chuoh-Inohana, Chiba 260-8675, Japan
| |
Collapse
|
19
|
He C, Howes BD, Smulevich G, Rumpel S, Reijerse EJ, Lubitz W, Cox N, Knipp M. Nitrite Dismutase Reaction Mechanism: Kinetic and Spectroscopic Investigation of the Interaction between Nitrophorin and Nitrite. J Am Chem Soc 2015; 137:4141-50. [DOI: 10.1021/ja512938u] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Chunmao He
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
| | - Barry D. Howes
- Department
of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3-13, I-50019 Sesto Fiorentino(Fi), Italy
| | - Giulietta Smulevich
- Department
of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3-13, I-50019 Sesto Fiorentino(Fi), Italy
| | - Sigrun Rumpel
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
| | - Edward J. Reijerse
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
| | - Wolfgang Lubitz
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
| | - Nicholas Cox
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
| | - Markus Knipp
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
- Faculty
of Chemistry and Biochemistry, Ruhr University, Universitätsstrasse 150, D-44780 Bochum, Germany
| |
Collapse
|
20
|
Nagai M, Kobayashi C, Nagai Y, Imai K, Mizusawa N, Sakurai H, Neya S, Kayanuma M, Shoji M, Nagatomo S. Involvement of Propionate Side Chains of the Heme in Circular Dichroism of Myoglobin: Experimental and Theoretical Analyses. J Phys Chem B 2015; 119:1275-87. [DOI: 10.1021/jp5086203] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Masako Nagai
- Research
Center for Micro-Nano Technology, Hosei University, Koganei, Tokyo 184-0003, Japan
- School
of Health Sciences, College of Medical, Pharmaceutical and Health
Sciences, Kanazawa University, Kanazawa 920-0942, Japan
| | - Chika Kobayashi
- Department
of Frontier Bioscience, Faculty of Bioscience and Applied Chemistry, Hosei University, Koganei, Tokyo 184-8584, Japan
| | - Yukifumi Nagai
- Research
Center for Micro-Nano Technology, Hosei University, Koganei, Tokyo 184-0003, Japan
| | - Kiyohiro Imai
- Department
of Frontier Bioscience, Faculty of Bioscience and Applied Chemistry, Hosei University, Koganei, Tokyo 184-8584, Japan
| | - Naoki Mizusawa
- Research
Center for Micro-Nano Technology, Hosei University, Koganei, Tokyo 184-0003, Japan
- Department
of Frontier Bioscience, Faculty of Bioscience and Applied Chemistry, Hosei University, Koganei, Tokyo 184-8584, Japan
| | - Hiroshi Sakurai
- School
of Health Sciences, College of Medical, Pharmaceutical and Health
Sciences, Kanazawa University, Kanazawa 920-0942, Japan
| | - Saburo Neya
- Department
of Physical Chemistry, Graduate School of Pharmaceutical Sciences, Chiba University, Inohana, Chuo-Ku, Chiba 260-8675, Japan
| | - Megumi Kayanuma
- Department
of Computer Science, Graduate School of Systems and Information Engineering, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
| | - Mitsuo Shoji
- Department
of Physics, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Shigenori Nagatomo
- Department
of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| |
Collapse
|
21
|
Karnaukhova E, Rutardottir S, Rajabi M, Wester Rosenlöf L, Alayash AI, Åkerström B. Characterization of heme binding to recombinant α1-microglobulin. Front Physiol 2014; 5:465. [PMID: 25538624 PMCID: PMC4255499 DOI: 10.3389/fphys.2014.00465] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 11/13/2014] [Indexed: 11/13/2022] Open
Abstract
Background: Alpha-1-microglobulin (A1M), a small lipocalin protein found in plasma and tissues, has been identified as a heme1 and radical scavenger that may participate in the mitigation of toxicities caused by degradation of hemoglobin. The objective of this work was to investigate heme interactions with A1M in vitro using various analytical techniques and to optimize analytical methodology suitable for rapid evaluation of the ligand binding properties of recombinant A1M versions. Methods: To examine heme binding properties of A1M we utilized UV/Vis absorption spectroscopy, visible circular dichroism (CD), catalase-like activity, migration shift electrophoresis, and surface plasmon resonance (SPR), which was specifically developed for the assessment of His-tagged A1M. Results: The results of this study confirm that A1M is a heme binding protein that can accommodate heme at more than one binding site and/or in coordination with different amino acid residues depending upon heme concentration and ligand-to-protein molar ratio. UV/Vis titration of A1M with heme revealed an unusually large bathochromic shift, up to 38 nm, observed for heme binding to a primary binding site. UV/Vis spectroscopy, visible CD and catalase-like activity suggested that heme is accommodated inside His-tagged (tgA1M) and tagless A1M (ntA1M) in a rather similar fashion although the His-tag is very likely involved into coordination with iron of the heme molecule. SPR data indicated kinetic rate constants and equilibrium binding constants with KD values in a μM range. Conclusions: This study provided experimental evidence of the A1M heme binding properties by aid of different techniques and suggested an analytical methodology for a rapid evaluation of ligand-binding properties of recombinant A1M versions, also suitable for other His-tagged proteins.
Collapse
Affiliation(s)
- Elena Karnaukhova
- Laboratory of Biochemistry and Vascular Biology, Division of Hematology Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration Silver Spring, MD, USA
| | - Sigurbjörg Rutardottir
- Division of Infection Medicine, Department of Clinical Sciences in Lund, Lund University Lund, Sweden
| | - Mohsen Rajabi
- Division of Therapeutic Proteins, Office of Biotechnology Products, Office of Pharmaceutical Science, Center for Drug Evaluation and Research, Food and Drug Administration Silver Spring, MD, USA
| | - Lena Wester Rosenlöf
- Division of Infection Medicine, Department of Clinical Sciences in Lund, Lund University Lund, Sweden
| | - Abdu I Alayash
- Laboratory of Biochemistry and Vascular Biology, Division of Hematology Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration Silver Spring, MD, USA
| | - Bo Åkerström
- Division of Infection Medicine, Department of Clinical Sciences in Lund, Lund University Lund, Sweden
| |
Collapse
|
22
|
Nishimura R, Shibata T, Tai H, Ishigami I, Yanagisawa S, Ogura T, Neya S, Suzuki A, Yamamoto Y. Effect of the Electron Density of the Heme Fe Atom on the Fe–Histidine Coordination Bond in Deoxy Myoglobin. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2014. [DOI: 10.1246/bcsj.20130331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | | | - Hulin Tai
- Department of Chemistry, University of Tsukuba
| | - Izumi Ishigami
- Picobiology Institute, Graduate School of Life Science, University of Hyogo
| | - Sachiko Yanagisawa
- Picobiology Institute, Graduate School of Life Science, University of Hyogo
| | - Takashi Ogura
- Picobiology Institute, Graduate School of Life Science, University of Hyogo
| | - Saburo Neya
- Department of Physical Chemistry, Graduate School of Pharmaceutical Sciences, Chiba University
| | - Akihiro Suzuki
- Department of Materials Engineering, Nagaoka National College of Technology
| | | |
Collapse
|
23
|
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
|
24
|
Neya S, Yonetani T, Kawaguchi AT. Usefulness of Myoglobin Containing Cobalt Heme Cofactor in Designing a Myoglobin-Based Artificial Oxygen Carrier. Artif Organs 2014; 38:715-9. [DOI: 10.1111/aor.12327] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Saburo Neya
- Department of Physical Chemistry; Graduate School of Pharmaceutical Sciences; Chiba University; Chiba Japan
| | - Takashi Yonetani
- Department of Biochemistry and Biophysics; University of Pennsylvania; Philadelphia PA USA
| | | |
Collapse
|
25
|
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
|
26
|
Ghosh SK, Bhowmik S, Sil D, Rath SP. Effect of Heme-Heme Interactions and Modulation of Metal Spins by Counter Anions in a Series of Diiron(III)-μ-hydroxo Bisporphyrins: Unusual Stabilization of Two Different Spins in a Single Molecular Framework. Chemistry 2013; 19:17846-59. [DOI: 10.1002/chem.201301318] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 08/16/2013] [Indexed: 11/10/2022]
|
27
|
Complexes of ferriheme nitrophorin 4 with low-molecular weight thiol(ate)s occurring in blood plasma. J Inorg Biochem 2013; 122:38-48. [DOI: 10.1016/j.jinorgbio.2013.01.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Revised: 01/14/2013] [Accepted: 01/14/2013] [Indexed: 11/17/2022]
|
28
|
Neya S. Dynamic motion and rearranged molecular shape of heme in myoglobin: structural and functional consequences. Molecules 2013; 18:3168-82. [PMID: 23478515 PMCID: PMC6269712 DOI: 10.3390/molecules18033168] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 03/07/2013] [Accepted: 03/07/2013] [Indexed: 11/16/2022] Open
Abstract
Myoglobin, a simple oxygen binding protein, was reconstituted with various types of synthetic hemes to manipulate the heme-globin interactions. From the paramagnetic NMR analysis, small heme was found to rotate rapidly about the iron-histidine bond upon. This is a novel and typical example for the fluctuation of protein. The dynamic NMR analysis indicated that the 360° rotational rate of a small heme was 1,400 s−1 at room temperature. The X-ray analyses revealed that the tertiary structure of globin containing the smallest heme was closely similar to that of native protein despite extensive destruction of the specific heme-globin interactions. The functional analyses of O2 binding showed that the loose heme-globin contacts do not significantly affect the oxygen binding. On the other hand, the rearrangement of tetrapyrrole array and the non-planar deformation in porphyrin ring significantly affect the functional properties of myoglobin. These results, taken together, indicate that the essential factors to regulate the myoglobin function are hidden under the molecular shape of prosthetic group rather than in the nonbonded heme-globin contacts.
Collapse
Affiliation(s)
- Saburo Neya
- Department of Physical Chemistry, Graduate School of Pharmaceutical Sciences, Chiba University, Chuoh-Inohana, Chiba City, Chiba 260-8675, Japan.
| |
Collapse
|
29
|
Nishimura R, Shibata T, Tai H, Ishigami I, Ogura T, Nagao S, Matsuo T, Hirota S, Imai K, Neya S, Suzuki A, Yamamoto Y. Relationship between the Electron Density of the Heme Fe Atom and the Vibrational Frequencies of the Fe-Bound Carbon Monoxide in Myoglobin. Inorg Chem 2013; 52:3349-55. [DOI: 10.1021/ic3028447] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [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
| | - Hulin Tai
- 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
| | - 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
| | - 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
|
30
|
Patra R, Sahoo D, Dey S, Sil D, Rath SP. Switching Orientation of Two Axial Imidazole Ligands between Parallel and Perpendicular in Low-Spin Fe(III) and Fe(II) Nonplanar Porphyrinates. Inorg Chem 2012; 51:11294-305. [DOI: 10.1021/ic300229u] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ranjan Patra
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India
| | - Dipankar Sahoo
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India
| | - Soumyajit Dey
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India
| | - Debangsu Sil
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India
| | - Sankar Prasad Rath
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India
| |
Collapse
|
31
|
Shibata T, Matsumoto D, Nishimura R, Tai H, Matsuoka A, Nagao S, Matsuo T, Hirota S, Imai K, Neya S, Suzuki A, Yamamoto Y. Relationship between oxygen affinity and autoxidation of myoglobin. Inorg Chem 2012; 51:11955-60. [PMID: 23082875 DOI: 10.1021/ic301848t] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Studies using myoglobins reconstituted with a variety of chemically modified heme cofactors revealed that the oxygen affinity and autoxidation reaction rate of the proteins are highly correlated to each other, both decreasing with decreasing the electron density of the heme iron atom. An Fe(3+)-O(2)(-)-like species has been expected for the Fe(2+)-O(2) bond in the protein, and the electron density of the heme iron atom influences the resonance process between the two forms. A shift of the resonance toward the Fe(2+)-O(2) form results in lowering of the O(2) affinity due to an increase in the O(2) dissociation rate. On the other hand, a shift of the resonance toward the Fe(3+)-O(2)(-)-like species results in acceleration of the autoxidation through increasing H(+) affinity of the bound ligand.
Collapse
Affiliation(s)
- Tomokazu Shibata
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Bhowmik S, Ghosh SK, Layek S, Verma HC, Rath SP. Protonation of an Oxo-Bridged Diiron Unit Gives Two Different Iron Centers: Synthesis and Structure of a New Class of Diiron(III)-μ-hydroxo Bisporphyrins and the Control of Spin States by Using Counterions. Chemistry 2012; 18:13025-37. [DOI: 10.1002/chem.201201466] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Indexed: 11/07/2022]
|
33
|
Van Doorslaer S, Tilleman L, Verrept B, Desmet F, Maurelli S, Trandafir F, Moens L, Dewilde S. Marked difference in the electronic structure of cyanide-ligated ferric protoglobins and myoglobin due to heme ruffling. Inorg Chem 2012; 51:8834-41. [PMID: 22877248 DOI: 10.1021/ic3007074] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Electron paramagnetic resonance experiments reveal a significant difference between the principal g values (and hence ligand-field parameters) of the ferric cyanide-ligated form of different variants of the protoglobin of Methanosarcina acetivorans (MaPgb) and of horse heart myoglobin (hhMb). The largest principal g value of the ferric cyanide-ligated MaPgb variants is found to be significantly lower than for any of the other globins reported so far. This is at least partially caused by the strong heme distortions as proven by the determination of the hyperfine interaction of the heme nitrogens and mesoprotons. Furthermore, the experiments confirm recent theoretical predictions [Forti, F.; Boechi, L., Bikiel, D., Martí, M.A.; Nardini, M.; Bolognesi, M.; Viappiani, C.; Estrin, D.; Luque, F. J. J. Phys. Chem. B 2011, 115, 13771-13780] that Phe(G8)145 plays a crucial role in the ligand modulation in MaPgb. Finally, the influence of the N-terminal 20 amino-acid chain on the heme pocket in these protoglobins is also proven.
Collapse
|
34
|
Zhou Z, Shen M, Cao C, Liu Q, Yan Z. Opposing Influences of Ruffling and Doming Deformation on the 4-N Cavity Size of Porphyrin Macrocycles: The Role of Heme Deformations Revealed. Chemistry 2012; 18:7675-9. [DOI: 10.1002/chem.201200722] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Indexed: 01/09/2023]
|
35
|
Haddad R, Lu Y, Quirke JME, Berget P, Sun L, Fettinger JC, Leung K, Qiu Y, Schore NE, van Swol F, Medforth CJ, Shelnutt JA. Steric bulkiness of pyrrole substituents and the out-of-plane deformations of porphyrins: nickel(II) octaisopropylporphyrin and its meso-nitro derivative. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424611003707] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Sterically bulky substituents at the β-carbons of the pyrrole rings of porphyrins are sufficient to cause large out-of-plane porphyrin distortions even in the absence of substituent groups at the meso carbons. It is well established that substituents at the meso-positions only or at both the β-pyrrole and the meso-positions are sufficiently bulky to result in large non-planar distortions of the macrocycle. However, no systematic studies of the effects of bulky β-pyrrole substituents alone have been reported. Herein, molecular simulations and X-ray crystallography of nickel(II) 2,3,7,8,12,13,17,18-octa(isopropyl)porphyrin reveal that large out-of-plane distortions (>1.5 Å) are induced by the steric repulsion of the β-isopropyl groups but fail to lead to a single strongly energetically favored conformer. The molecular simulations indicate that multiple conformers differing in the orientation of the isopropyl groups and the macrocycle conformation coexist in solution and this is confirmed by resonance Raman spectroscopy. Large downshifts in the structure-sensitive lines result from the non-planar distortion, and line broadenings result from structural heterogeneity. The heterogeneity originates from tradeoffs between energy contributions from steric repulsion and macrocycle distortion. Simulations for 5-nitro-2,3,7,8,12,13,17,18-octa(isopropyl)porphyrin suggest two possible orientations of the nitro group with respect to the macrocycle mean plane — one nearly vertical (as in the crystal structure) and another that is nearly parallel. INDO/S semiempirical calculations indicate an orbital of the NO2 group resides between the porphyrin frontier orbitals with significant mixing of the nitro and porphyrin orbitals.KEYWORDS: porphyrin, non-planar, resonance Raman, X-ray crystallography, crystal structure, isopropyl, nitro, conformer, molecular mechanics, molecular simulations, density functional theory, steric crowding, conformational heterogeneity.
Collapse
Affiliation(s)
- Raid Haddad
- Advanced Materials Laboratory, Sandia National Laboratories, Albuquerque, NM 87185-1349, USA
- Departments of Chemistry & Chemical and Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131, USA
| | - Yi Lu
- Departments of Chemistry & Chemical and Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131, USA
| | - J. Martin E. Quirke
- Department of Chemistry, Florida International University, Miami, FL 33199, USA
| | - Patrick Berget
- Department of Chemistry, University of California, Davis, CA 95616, USA
| | - Lisong Sun
- Departments of Chemistry & Chemical and Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131, USA
| | | | - Kevin Leung
- Advanced Materials Laboratory, Sandia National Laboratories, Albuquerque, NM 87185-1349, USA
| | - Yan Qiu
- Departments of Chemistry & Chemical and Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131, USA
| | - Neil E. Schore
- Department of Chemistry, University of California, Davis, CA 95616, USA
| | - Frank van Swol
- Advanced Materials Laboratory, Sandia National Laboratories, Albuquerque, NM 87185-1349, USA
- Departments of Chemistry & Chemical and Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131, USA
| | - Craig J. Medforth
- Departments of Chemistry & Chemical and Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131, USA
- Department of Chemistry, University of California, Davis, CA 95616, USA
| | - John A. Shelnutt
- Advanced Materials Laboratory, Sandia National Laboratories, Albuquerque, NM 87185-1349, USA
- Department of Chemistry, University of Georgia, Athens, GA 30607, USA
| |
Collapse
|
36
|
Barbee J, Kuznetsov AE. Revealing substituent effects on the electronic structure and planarity of Ni-porphyrins. COMPUT THEOR CHEM 2012; 981:73-85. [PMID: 23560251 DOI: 10.1016/j.comptc.2011.11.049] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Using density functional theory, we have studied the effects on structural and electronic consequences (including HOMO-LUMO energy gaps, vertical ionization potentials (IPv), and vertical electron affinities (EAv)) of the following two factors: (a) meso- and β-substituents acting as inductive donors (CH3), inductive acceptors that are electron-donating through resonance (Br), inductive electron acceptors (CF3), and resonance enabled acceptors (NO2); and (b) complete replacement of pyrrole nitrogens with P-atoms. The principal results of the study are: (1) For the bare Ni-porphyrin, the solvents were found not to affect the HOMO-LUMO gaps but to change the IPv and EAv noticeably. (2) In the series CH3 → Br → CF3 → NO2 the HOMO-LUMO energy gaps, IPv, and EAv increase for both meso- and β-substituents. The ruffling distortion of the porphyrin core is retained, and becomes stronger for the two acceptor groups. In general, effects of meso-substituents on the ruffling distortion of the porphyrin core is more pronounced. (3) Most significantly, complete replacement of pyrrole nitrogens in the NiP with phosphorus atoms produces the species, NiP(P)4, with the structural and electronic features drastically different from the original NiP. This implies that NiP(P)4 can possess interesting and unusual novel properties, including aromaticity and reactivity, leading to its various beneficial potential applications. Furthermore, NiP(P)4 high stability both in the gas phase and different solvents was shown, implying the feasibility of its synthesis.
Collapse
Affiliation(s)
- Jenna Barbee
- Department of Chemistry, Duke University, Durham, NC 27708, USA
| | | |
Collapse
|
37
|
Can M, Zoppellaro G, Andersson KK, Bren KL. Modulation of ligand-field parameters by heme ruffling in cytochromes c revealed by EPR spectroscopy. Inorg Chem 2011; 50:12018-24. [PMID: 22044358 DOI: 10.1021/ic201479q] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electron paramagnetic resonance (EPR) spectra of variants of Hydrogenobacter thermophilus cytochrome c(552) (Ht c-552) and Pseudomonas aeruginosa cytochrome c(551) (Pa c-551) are analyzed to determine the effect of heme ruffling on ligand-field parameters. Mutations introduced at positions 13 and 22 in Ht c-552 were previously demonstrated to influence hydrogen bonding in the proximal heme pocket and to tune reduction potential (E(m)) over a range of 80 mV [Michel, L. V.; Ye, T.; Bowman, S. E. J.; Levin, B. D.; Hahn, M. A.; Russell, B. S.; Elliott, S. J.; Bren, K. L. Biochemistry 2007, 46, 11753-11760]. These mutations are shown here to also increase heme ruffling as E(m) decreases. The primary effect on electronic structure of increasing heme ruffling is found to be a decrease in the axial ligand-field term Δ/λ, which is proposed to arise from an increase in the energy of the d(xy) orbital. Mutations at position 7, previously demonstrated to influence heme ruffling in Pa c-551 and Ht c-552, are utilized to test this correlation between molecular and electronic structure. In conclusion, the structure of the proximal heme pocket of cytochromes c is shown to play a role in determining heme conformation and electronic structure.
Collapse
Affiliation(s)
- Mehmet Can
- Department of Chemistry, University of Rochester, Rochester, New York 14627-0216, USA
| | | | | | | |
Collapse
|
38
|
He C, Neya S, Knipp M. Breaking the Proximal FeII–NHis Bond in Heme Proteins through Local Structural Tension: Lessons from the Heme b Proteins Nitrophorin 4, Nitrophorin 7, and Related Site-Directed Mutant Proteins. Biochemistry 2011; 50:8559-75. [DOI: 10.1021/bi201073t] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Chunmao He
- Max-Planck-Institut für Bioanorganische Chemie, Stiftstrasse 34-36, D-45470
Mülheim an der Ruhr, Germany
| | - Saburo Neya
- Department of Physical Chemistry, Graduate School of Pharmaceutical
Sciences, Chiba University, Image-Yayoi,
Chiba 263-8522, Japan
| | - Markus Knipp
- Max-Planck-Institut für Bioanorganische Chemie, Stiftstrasse 34-36, D-45470
Mülheim an der Ruhr, Germany
| |
Collapse
|
39
|
Rajapandian V, Subramanian V. Calculations on the Structure and Spectral Properties of Cytochrome c551 Using DFT and ONIOM Methods. J Phys Chem A 2011; 115:2866-76. [DOI: 10.1021/jp110983v] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- V. Rajapandian
- Chemical Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai 600 020, India
| | - V. Subramanian
- Chemical Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai 600 020, India
| |
Collapse
|