1
|
Cheng L, Chen H, Ren Y, Cheng Z, Fan M, Liu Y, Shen Z, Yuan T. Study on enhancement of hemoglobin antitoxic ability modified with chromium and ruthenium. Int J Biol Macromol 2023; 242:124756. [PMID: 37178891 DOI: 10.1016/j.ijbiomac.2023.124756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/17/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023]
Abstract
Hemoglobin is essential for carrying oxygen (O2) in the blood. However, its ability to bind excessively to carbon monoxide (CO) makes it susceptible to CO poisoning. To reduce the risk of CO poisoning, Cr-based heme and Ru-based heme were selected from among many transition metal-based hemes based on their characteristics of adsorption conformation, binding intensity, spin multiplicity, and electronic properties. The results showed that hemoglobin modified by Cr-based heme and Ru-based heme had strong anti-CO poisoning abilities. The Cr-based heme and Ru-based heme exhibited much stronger affinity for O2 (-190.67 kJ/mol and -143.18 kJ/mol, respectively) than Fe-based heme (-44.60 kJ/mol). Moreover, Cr-based heme and Ru-based heme exhibited much weaker affinity for CO (-121.50 kJ/mol and -120.88 kJ/mol, respectively) than their affinity for O2, suggesting that they were less likely to cause CO poisoning. The electronic structure analysis also supported this conclusion. Additionally, molecular dynamics analysis showed that hemoglobin modified by Cr-based heme and Ru-based heme was stable. Our findings offer a novel and effective strategy for enhancing the reconstructed hemoglobin's ability to bind O2 and reduce its potential for CO poisoning.
Collapse
Affiliation(s)
- Luwei Cheng
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Hongjiang Chen
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yuanyang Ren
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zhiwen Cheng
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, Shanghai Academy of Environment Sciences, Shanghai 200233, PR China
| | - Maohong Fan
- College of Engineering & Applied Science, University of Wyoming, Laramie 82070, WY, USA
| | - Yawei Liu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zhemin Shen
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, Shanghai 200233, PR China; Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai 200240, China.
| | - Tao Yuan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, Shanghai 200233, PR China; Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai 200240, China
| |
Collapse
|
2
|
Gell DA. Structure and function of haemoglobins. Blood Cells Mol Dis 2017; 70:13-42. [PMID: 29126700 DOI: 10.1016/j.bcmd.2017.10.006] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 10/29/2017] [Accepted: 10/30/2017] [Indexed: 12/18/2022]
Abstract
Haemoglobin (Hb) is widely known as the iron-containing protein in blood that is essential for O2 transport in mammals. Less widely recognised is that erythrocyte Hb belongs to a large family of Hb proteins with members distributed across all three domains of life-bacteria, archaea and eukaryotes. This review, aimed chiefly at researchers new to the field, attempts a broad overview of the diversity, and common features, in Hb structure and function. Topics include structural and functional classification of Hbs; principles of O2 binding affinity and selectivity between O2/NO/CO and other small ligands; hexacoordinate (containing bis-imidazole coordinated haem) Hbs; bacterial truncated Hbs; flavohaemoglobins; enzymatic reactions of Hbs with bioactive gases, particularly NO, and protection from nitrosative stress; and, sensor Hbs. A final section sketches the evolution of work on the structural basis for allosteric O2 binding by mammalian RBC Hb, including the development of newer kinetic models. Where possible, reference to historical works is included, in order to provide context for current advances in Hb research.
Collapse
Affiliation(s)
- David A Gell
- School of Medicine, University of Tasmania, TAS 7000, Australia.
| |
Collapse
|
3
|
Ronda L, Bruno S, Bettati S, Storici P, Mozzarelli A. From protein structure to function via single crystal optical spectroscopy. Front Mol Biosci 2015; 2:12. [PMID: 25988179 PMCID: PMC4428442 DOI: 10.3389/fmolb.2015.00012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 03/31/2015] [Indexed: 11/23/2022] Open
Abstract
The more than 100,000 protein structures determined by X-ray crystallography provide a wealth of information for the characterization of biological processes at the molecular level. However, several crystallographic “artifacts,” including conformational selection, crystallization conditions and radiation damages, may affect the quality and the interpretation of the electron density maps, thus limiting the relevance of structure determinations. Moreover, for most of these structures, no functional data have been obtained in the crystalline state, thus posing serious questions on their validity in infereing protein mechanisms. In order to solve these issues, spectroscopic methods have been applied for the determination of equilibrium and kinetic properties of proteins in the crystalline state. These methods are UV-vis spectrophotometry, spectrofluorimetry, IR, EPR, Raman, and resonance Raman spectroscopy. Some of these approaches have been implemented with on-line instruments at X-ray synchrotron beamlines. Here, we provide an overview of investigations predominantly carried out in our laboratory by single crystal polarized absorption UV-vis microspectrophotometry, the most applied technique for the functional characterization of proteins in the crystalline state. Studies on hemoglobins, pyridoxal 5′-phosphate dependent enzymes and green fluorescent protein in the crystalline state have addressed key biological issues, leading to either straightforward structure-function correlations or limitations to structure-based mechanisms.
Collapse
Affiliation(s)
- Luca Ronda
- Department of Neurosciences, University of Parma Parma, Italy
| | - Stefano Bruno
- Department of Pharmacy, University of Parma Parma, Italy
| | - Stefano Bettati
- Department of Neurosciences, University of Parma Parma, Italy ; National Institute of Biostructures and Biosystems Rome, Italy
| | | | - Andrea Mozzarelli
- Department of Pharmacy, University of Parma Parma, Italy ; National Institute of Biostructures and Biosystems Rome, Italy ; Institute of Biophysics, Consiglio Nazionale delle Ricerche Pisa, Italy
| |
Collapse
|
4
|
Ronda L, Bettati S, Henry ER, Kashav T, Sanders JM, Royer WE, Mozzarelli A. Tertiary and quaternary allostery in tetrameric hemoglobin from Scapharca inaequivalvis. Biochemistry 2013; 52:2108-17. [PMID: 23458680 DOI: 10.1021/bi301620x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The clam Scapharca inaequivalvis possesses two cooperative oxygen binding hemoglobins in its red cells: a homodimeric HbI and a heterotetrameric A2B2 HbII. Each AB dimeric half of HbII is assembled in a manner very similar to that of the well-studied HbI. This study presents crystal structures of HbII along with oxygen binding data both in the crystalline state and in wet nanoporous silica gels. Despite very similar ligand-linked structural transitions observed in HbI and HbII crystals, HbII in the crystal or encapsulated in silica gels apparently exhibits minimal cooperativity in oxygen binding, in contrast with the full cooperativity exhibited by HbI crystals. However, oxygen binding curves in the crystal indicate the presence of a significant functional inequivalence of A and B chains. When this inequivalence is taken into account, both crystal and R state gel functional data are consistent with the conservation of a tertiary contribution to cooperative oxygen binding, quantitatively similar to that measured for HbI, and are in keeping with the structural information. Furthermore, our results indicate that to fully express cooperative ligand binding, HbII requires quaternary transitions hampered by crystal lattice and gel encapsulation, revealing greater complexity in cooperative function than the direct communication across a dimeric interface observed in HbI.
Collapse
Affiliation(s)
- Luca Ronda
- Department of Pharmacy, University of Parma , Parco Area delle Scienze, 23/A, 43124 Parma, Italy
| | | | | | | | | | | | | |
Collapse
|
5
|
Bettati S, Viappiani C, Mozzarelli A. Hemoglobin, an “evergreen” red protein. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2009; 1794:1317-24. [DOI: 10.1016/j.bbapap.2009.03.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2009] [Accepted: 03/23/2009] [Indexed: 10/20/2022]
|
6
|
Kang LL, Huang YX, Liu WJ, Zheng XJ, Wu ZJ, Luo M. Confocal Raman microscopy on single living young and old erythrocytes. Biopolymers 2008; 89:951-9. [DOI: 10.1002/bip.21042] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
7
|
Ronda L, Bruno S, Abbruzzetti S, Viappiani C, Bettati S. Ligand reactivity and allosteric regulation of hemoglobin-based oxygen carriers. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2008; 1784:1365-77. [DOI: 10.1016/j.bbapap.2008.04.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2008] [Revised: 04/21/2008] [Accepted: 04/24/2008] [Indexed: 01/05/2023]
|
8
|
Ronda L, Abbruzzetti S, Bruno S, Bettati S, Mozzarelli A, Viappiani C. Ligand-Induced Tertiary Relaxations During the T-to-R Quaternary Transition in Hemoglobin. J Phys Chem B 2008; 112:12790-4. [DOI: 10.1021/jp803040j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Luca Ronda
- Dipartimento di Biochimica e Biologia Molecolare, Università degli Studi di Parma, CNISM, and Dipartimento di Fisica, Università degli Studi di Parma, CNISM, and NEST CNR-INFM
| | - Stefania Abbruzzetti
- Dipartimento di Biochimica e Biologia Molecolare, Università degli Studi di Parma, CNISM, and Dipartimento di Fisica, Università degli Studi di Parma, CNISM, and NEST CNR-INFM
| | - Stefano Bruno
- Dipartimento di Biochimica e Biologia Molecolare, Università degli Studi di Parma, CNISM, and Dipartimento di Fisica, Università degli Studi di Parma, CNISM, and NEST CNR-INFM
| | - Stefano Bettati
- Dipartimento di Biochimica e Biologia Molecolare, Università degli Studi di Parma, CNISM, and Dipartimento di Fisica, Università degli Studi di Parma, CNISM, and NEST CNR-INFM
| | - Andrea Mozzarelli
- Dipartimento di Biochimica e Biologia Molecolare, Università degli Studi di Parma, CNISM, and Dipartimento di Fisica, Università degli Studi di Parma, CNISM, and NEST CNR-INFM
| | - Cristiano Viappiani
- Dipartimento di Biochimica e Biologia Molecolare, Università degli Studi di Parma, CNISM, and Dipartimento di Fisica, Università degli Studi di Parma, CNISM, and NEST CNR-INFM
| |
Collapse
|
9
|
Oxygen Binding to Heme Proteins in Solution, Encapsulated in Silica Gels, and in the Crystalline State. Methods Enzymol 2008; 437:311-28. [DOI: 10.1016/s0076-6879(07)37016-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
10
|
Mouawad L, Perahia D, Robert CH, Guilbert C. New insights into the allosteric mechanism of human hemoglobin from molecular dynamics simulations. Biophys J 2002; 82:3224-45. [PMID: 12023247 PMCID: PMC1302112 DOI: 10.1016/s0006-3495(02)75665-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
It is still difficult to obtain a precise structural description of the transition between the deoxy T-state and oxy R-state conformations of human hemoglobin, despite a large number of experimental studies. We used molecular dynamics with the Path Exploration with Distance Constraints (PEDC) method to provide new insights into the allosteric mechanism at the atomic level, by simulating the T-to-R transition. The T-state molecule in the absence of ligands was seen to have a natural propensity for dimer rotation, which nevertheless would be hampered by steric hindrance in the "joint" region. The binding of a ligand to the alpha subunit would prevent such hindrance due to the coupling between this region and the alpha proximal histidine, and thus facilitate completion of the dimer rotation. Near the end of this quaternary transition, the "switch" region adopts the R conformation, resulting in a shift of the beta proximal histidine. This leads to a sliding of the beta-heme, the effect of which is to open the beta-heme's distal side, increasing the accessibility of the Fe atom and thereby the affinity of the protein. Our simulations are globally consistent with the Perutz strereochemical mechanism.
Collapse
Affiliation(s)
- Liliane Mouawad
- Laboratoire de Modélisation et Ingénierie des Protéines, Institut de Biochimie et de Biophysique Moléculaire et Cellulaire, CNRS, Unité Mixte de Recherche 8619, Université Paris-Sud, 91405 Orsay cedex, France.
| | | | | | | |
Collapse
|
11
|
Bruno S, Bonaccio M, Bettati S, Rivetti C, Viappiani C, Abbruzzetti S, Mozzarelli A. High and low oxygen affinity conformations of T state hemoglobin. Protein Sci 2001; 10:2401-7. [PMID: 11604545 PMCID: PMC2374069 DOI: 10.1110/ps.20501] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2001] [Revised: 08/07/2001] [Accepted: 08/20/2001] [Indexed: 10/16/2022]
Abstract
To understand the interplay between tertiary and quaternary transitions associated with hemoglobin function and regulation, oxygen binding curves were obtained for hemoglobin A fixed in the T quaternary state by encapsulation in wet porous silica gels. At pH 7.0 and 15 degrees C, the oxygen pressure at half saturation (p50) was measured to be 12.4 +/- 0.2 and 139 +/- 4 torr for hemoglobin gels prepared in the absence and presence of the strong allosteric effectors inositol hexaphosphate and bezafibrate, respectively. Both values are in excellent agreement with those found for the binding of the first oxygen to hemoglobin in solution under similar experimental conditions. The corresponding Hill coefficients of hemoglobin gels were 0.94 +/- 0.02 and 0.93 +/- 0.03, indicating, in the frame of the Monod, Wyman, and Changeux model, that high and low oxygen-affinity tertiary T-state conformations have been isolated in a pure form. The values, slightly lower than unity, reflect the different oxygen affinity of alpha- and beta-hemes. Significantly, hemoglobin encapsulated in the presence of the weak effector phosphate led to gels that show intermediate oxygen affinity and Hill coefficients of 0.7 to 0.8. The heterogeneous oxygen binding results from the presence of a mixture of the high and low oxygen-affinity T states. The Bohr effect was measured for hemoglobin gels containing the pure conformations and found to be more pronounced for the high-affinity T state and almost absent for the low-affinity T state. These findings indicate that the functional properties of the T quaternary state result from the contribution of two distinct, interconverting conformations, characterized by a 10-fold difference in oxygen affinity and a different extent of tertiary Bohr effect. The very small degree of T-state cooperativity observed in solution and in the crystalline state might arise from a ligand-induced perturbation of the distribution between the high- and low-affinity T-state conformations.
Collapse
Affiliation(s)
- S Bruno
- Department of Biochemistry and Molecular Biology, University of Parma, 43100 Parma, Italy
| | | | | | | | | | | | | |
Collapse
|
12
|
Ackers GK, Holt JM, Huang Y, Grinkova Y, Klinger AL, Denisov I. Confirmation of a unique intra-dimer cooperativity in the human hemoglobin alpha(1)beta(1)half-oxygenated intermediate supports the symmetry rule model of allosteric regulation. Proteins 2001; Suppl 4:23-43. [PMID: 11013398 DOI: 10.1002/1097-0134(2000)41:4+<23::aid-prot30>3.0.co;2-d] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The contribution of the alpha(1)beta(1)half-oxygenated tetramer [alphabeta:alphaO(2)betaO(2)] (species 21) to human hemoglobin cooperativity was evaluated using cryogenic isoelectric focusing. The cooperative free energy of binding, reflecting O(2)-driven protein structure changes, was measured as (21)DeltaG(c) = 5.1 +/- 0. 3 kcal for the Zn/FeO(2) analog. For the Fe/FeCN analog, (21)DeltaG(c) was estimated as 4.0 kcal after correction for a CN ligand rearrangement artifact, demonstrating that ligand rearrangement does not invalidate previous conclusions regarding this species. In the context of the entire Hb cooperativity cascade, which includes eight intermediate species, the 21 tetramer is highly abundant relative to the other doubly-ligated species, providing strong support for the previously determined consensus partition function of O(2) binding and for the Symmetry Rule model of hemoglobin cooperativity (Ackers et al., Science 1992;255:54-63). Cooperativity of normal human hemoglobin is shown to depend on site-configuration, and not solely the number of O(2) bound, nor the occupancy of alpha vs. beta subunits. Verification of a unique contribution from the alpha(1)beta(1)doubly-oxygenated species to the equilibrium O(2) binding curve strongly reinforces the Symmetry Rule interpretation that the alpha(1)beta(1)dimer acts both as a structural and functional element in cooperative O(2) binding.
Collapse
Affiliation(s)
- G K Ackers
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
| | | | | | | | | | | |
Collapse
|