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Dowd S, Lagalante L, Rahlfs J, Sharo C, Opulente D, Lagalante A, Elmer J. Sequencing of the Lumbricus terrestris genome reveals degeneracy in its erythrocruorin genes. Biochimie 2024; 219:130-141. [PMID: 37981225 DOI: 10.1016/j.biochi.2023.11.007] [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: 09/27/2023] [Revised: 11/07/2023] [Accepted: 11/13/2023] [Indexed: 11/21/2023]
Abstract
The erythrocruorin of Lumbricus terrestris (LtEc) is a relatively large macromolecular assembly that consists of at least four different hemoglobin subunits (A, B, C, and D) and four linker subunits (L1, L2, L3, and L4). The complexity and stability of this large structure make LtEc an attractive hemoglobin-based oxygen carrier that could potentially be used as a substitute for donated red blood cells. However, the sequences of the LtEc subunit sequences must be determined before a scalable recombinant expression platform can be developed. The goal of this study was to sequence the L. terrestris genome to identify the complete sequences of the LtEc subunit genes. Our results revealed multiple homologous genes for each subunit (e.g., two homologous A globin genes; A1 and A2), with the exception of the L4 linker. Some of the homologous genes encoded identical peptide sequences (C1 and C2, L1a and L1b), while cDNA and mass spectrometry experiments revealed that some of the homologs are not expressed (e.g., A2). In contrast, multiple sequences for the B, D, L2, and L4 subunits were detected in LtEc samples. These observations reveal novel degeneracy in LtEc and other annelids, along with some new revisions to its previously published peptide sequences.
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Affiliation(s)
- Sean Dowd
- Department of Chemical and Biological Engineering, Villanova University, 800 E Lancaster Avenue, Villanova, PA, 19085, USA
| | - Luke Lagalante
- Department of Chemical and Biological Engineering, Villanova University, 800 E Lancaster Avenue, Villanova, PA, 19085, USA
| | - Jack Rahlfs
- Department of Chemical and Biological Engineering, Villanova University, 800 E Lancaster Avenue, Villanova, PA, 19085, USA
| | - Catherine Sharo
- Department of Chemical and Biological Engineering, Villanova University, 800 E Lancaster Avenue, Villanova, PA, 19085, USA
| | - Dana Opulente
- Department of Biology, Villanova University, 800 E Lancaster Avenue, Villanova, PA, 19085, USA
| | - Anthony Lagalante
- Department of Chemistry, Villanova University, 800 E Lancaster Avenue, Villanova, PA, 19085, USA
| | - Jacob Elmer
- Department of Chemical and Biological Engineering, Villanova University, 800 E Lancaster Avenue, Villanova, PA, 19085, USA.
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Nascimento ED, Abrantes-Coutinho VE, Oliveira TMBF, Santiago PS, Carvalho FAO. Biorecognition of hydrogen peroxide using a novel electrochemical platform designed with Glossoscolex paulistus giant hemoglobin. Anal Bioanal Chem 2022; 414:3729-3739. [PMID: 35338376 DOI: 10.1007/s00216-022-04020-8] [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: 01/25/2022] [Revised: 03/08/2022] [Accepted: 03/14/2022] [Indexed: 11/29/2022]
Abstract
The giant extracellular hemoglobin of the annelid Glossoscolex paulistus (HbGp; 3.6 MDa) is a valuable and underexplored supramolecular hemoprotein system for the biorecognition of reactive oxygen species. In this work, an efficient and simple electrochemical platform was designed for analyzing H2O2, using HbGp covalently immobilized on Nafion®-modified glassy carbon electrode, named as HbGp/Nafion/GCE. Voltammetric and spectroscopic studies revealed the importance of prior modification of the electrodic support with the conducting polymer to obtain satisfactory hemoglobin electroactivity, as well as a biocompatible microenvironment for its immobilization. In terms of biological activity, it was observed a greater reactivity of the biomolecule in acidic medium, enabling the detection of the analyte by a quasi-reversible mechanism, whose kinetics was limited by analyte diffusion. In the presence of H2O2, the native structure of hemoglobin (oxy-HbGp (Fe2+)) oxidizes to ferryl-HbGp (Fe4+) and this redox reaction can be monitored on HbGp/Nafion/GCE with a detection limit of 8.5 × 10‒7 mol L-1. In addition to high sensitivity, the electrochemical biosensor also provided reproducible, consistent, and accurate measurements. The electroanalytical method showed an appropriate performance to quantify different levels of H2O2 in milk samples, proving the potential of HbGp/Nafion/GCE for this purpose.
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Affiliation(s)
- Evair D Nascimento
- Departamento de Química, Universidade Federal de São Carlos, Rod. Washington Luís km 235, São Carlos, SP, 13565-905, Brazil.,Universidade Federal Do Sul E Sudeste Do Pará, Folha 17, Quadra 04, Lote Especial, Marabá, PA, 68505-080, Brazil
| | - Vanessa E Abrantes-Coutinho
- Centro de Ciência E Tecnologia, Universidade Federal Do Cariri, Avenida Tenente Raimundo Rocha, 1639, Cidade Universitária, Juazeiro Do Norte, CE, 63048-080, Brazil
| | - Thiago M B F Oliveira
- Centro de Ciência E Tecnologia, Universidade Federal Do Cariri, Avenida Tenente Raimundo Rocha, 1639, Cidade Universitária, Juazeiro Do Norte, CE, 63048-080, Brazil
| | - Patrícia S Santiago
- Universidade Estadual Paulista, Instituto Avançado de Estudos Do Mar, Campus de Registro, Av. Nelson Brihi Badur, 430 - Vila Tupy, Registro, SP, 11900-000, Brazil
| | - Francisco A O Carvalho
- Universidade Federal Do Sul E Sudeste Do Pará, Folha 17, Quadra 04, Lote Especial, Marabá, PA, 68505-080, Brazil.
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Characterization of the apo-form of extracellular hemoglobin of Glossoscolex paulistus (HbGp) and its stability in the presence of urea. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2020; 49:449-462. [PMID: 32681183 DOI: 10.1007/s00249-020-01449-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 05/16/2020] [Accepted: 07/08/2020] [Indexed: 01/04/2023]
Abstract
The structural study of small heme-containing proteins, such as myoglobin, in the apo-form lacking heme has been extensively described, but the characterization and stability of the giant Glossoscolex paulistus hemoglobin (HbGp), in the absence of heme groups, has not been studied. Spectroscopic data show efficient extraction of the heme groups from the hemoglobin, with relatively small secondary and tertiary structural changes in apo-HbGp noticed compared to oxy-HbGp. Electrophoresis shows a partial precipitation of the trimer abc (significantly lower intensity of the corresponding band in the gel), due to extraction of heme groups, and the predominance of the intense monomeric d band, as well as of two linker bands. AUC and DLS data agree with SDS-PAGE in showing that the apo-HbGp undergoes dissociation into the d and abc subunits. Subunits d and abc are characterized by sedimentation coefficients and percentage contributions of 2.0 and 3.0 S and 76 and 24%, respectively. DLS data suggest that the apo-HbGp is unstable, and two populations are present in solution: one with a diameter around 6.0 nm, identified with the dissociated species, and a second one with diameter 100-180 nm, due to aggregated protein. Finally, the presence of urea promotes the exposure of the fluorescent probes, extrinsic ANS and intrinsic protein tryptophans to the aqueous solvent due to the unfolding process. An understanding of the effect of heme extraction on the stability of hemoproteins is important for biotechnological approaches such as the introduction of non-native prosthetic groups and development of artificial enzymes with designed properties.
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Carvalho FAO, Caruso CS, Nascimento ED, Oliveira TMBF, Bachega JFR, Tabak M. Oligomeric stability of Glossoscolex paulistus hemoglobin as a function of the storage time. Int J Biol Macromol 2019; 133:30-36. [PMID: 30986471 DOI: 10.1016/j.ijbiomac.2019.04.072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 04/11/2019] [Accepted: 04/11/2019] [Indexed: 11/16/2022]
Abstract
Glossoscolex paulistus hemoglobin structure is composed of 144 globin chains and 36 polypeptide chains lacking the heme group, with a total molecular mass of 3600 kDa. The current study focuses on the oxy-HbGp oligomeric stability, as a function of the storage time, at pH 7.0, using dynamic light scattering, analytical ultracentrifugation (AUC), optical absorption and size exclusion chromatography (SEC). HbGp stored in Tris-HCl buffer, pH 7.0, at 4 °C, for two years remains in the native form, while 4-6 years HbGp stocks present typical hemichrome species absorption spectra. AUC and SEC analyses show that the contribution of HbGp-subunits, such as, dodecamer (abcd)3, tetramer abcd, trimer abc and monomer d, increases with the protein aging due to the lower stability of the HbGp with the time. The dissociation and the oxidation of the iron noted for the older protein solutions indicate that HbGp storage for periods of time longer than two years changes its ability to carry oxygen. Despite the reduction of HbGp stability and oxygen carrying capacity with aging, the protein stability is still larger as compared to mammalian hemoglobins. Thus, the extracellular hemoglobins are quite stable and resistant to the auto-oxidation process, making them of interest for biotechnological applications.
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Affiliation(s)
| | - Celia S Caruso
- Instituto de Química de São Carlos - Universidade de São Paulo, Brazil
| | - Evair D Nascimento
- Instituto de Ciências Exatas - Universidade Federal do Sul e Sudeste do Pará, Brazil
| | - Thiago Mielle B F Oliveira
- Centro de Ciência e Tecnologia, Universidade Federal do Cariri, Av. Tenente Raimundo Rocha, Cidade Universitária, 63048-080 Juazeiro do Norte, CE, Brazil
| | - José F R Bachega
- Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Brazil
| | - Marcel Tabak
- Instituto de Química de São Carlos - Universidade de São Paulo, Brazil
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5
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Zimmerman D, DiIusto M, Dienes J, Abdulmalik O, Elmer JJ. Direct comparison of oligochaete erythrocruorins as potential blood substitutes. Bioeng Transl Med 2017; 2:212-221. [PMID: 29313031 PMCID: PMC5675092 DOI: 10.1002/btm2.10067] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 06/14/2017] [Accepted: 06/18/2017] [Indexed: 12/11/2022] Open
Abstract
While many blood substitutes are based on mammalian hemoglobins (e.g., human hemoglobin, HbA), the naturally extracellular hemoglobins of invertebrates (a.k.a. erythrocruorins, Ecs) are intriguing alternative oxygen carriers. Specifically, the erythrocruorin of Lumbricus terrestris has been shown to effectively deliver oxygen in mice and rats without the negative side effects observed with HbA. In this study, the properties of six oligochaete Ecs (Lumbricus terrestris, Eisenia hortensis, Eisenia fetida, Eisenia veneta, Eudrilus eugeniae, and Amynthas gracilis) were compared in vitro to identify the most promising blood substitute candidate(s). Several metrics were used to compare the Ecs, including their oxidation rates, dissociation at physiological pH, thermal stability, and oxygen transport characteristics. Overall, the Ecs of Lumbricus terrestris (LtEc) and Eisenia fetida (EfEc) were identified as promising candidates, since they demonstrated high thermal and oligomeric stability, while also exhibiting relatively low oxidation rates. Interestingly, the O2 affinity of LtEc (P50 = 26.25 mmHg at 37 °C) was also observed to be uniquely lower than EfEc and all of the other Ecs (P50 = 9.29–13.62 mmHg). Subsequent alignment of the primary sequences of LtEc and EfEc revealed several significant amino acid substitutions within the D subunit interfaces that may be responsible for this significant change in O2 affinity. Nonetheless, these results show that LtEc and EfEc are promising potential blood substitutes that are resistant to oxidation and denaturation, but additional experiments will need to be conducted to determine their safety, efficacy, and the effects of their disparate oxygen affinities in vivo.
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Affiliation(s)
- Devon Zimmerman
- Dept. of Chemical Engineering Villanova University 800 East Lancaster Avenue Villanova PA 19085
| | - Matthew DiIusto
- Dept. of Chemical Engineering Villanova University 800 East Lancaster Avenue Villanova PA 19085
| | - Jack Dienes
- Dept. of Chemical Engineering Villanova University 800 East Lancaster Avenue Villanova PA 19085
| | - Osheiza Abdulmalik
- Div. of Hematology, Abramson Building The Children's Hospital of Philadelphia 34th St. & Civic Center Blvd Philadelphia PA 19104
| | - Jacob J Elmer
- Dept. of Chemical Engineering Villanova University 800 East Lancaster Avenue Villanova PA 19085
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6
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Caruso CS, Biazin E, Carvalho FA, Tabak M, Bachega JF. Metals content of Glossoscolex paulistus extracellular hemoglobin: Its peroxidase activity and the importance of these ions in the protein stability. J Inorg Biochem 2016; 161:63-72. [DOI: 10.1016/j.jinorgbio.2016.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 04/08/2016] [Accepted: 05/04/2016] [Indexed: 10/21/2022]
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7
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Carvalho FAO, Alves FR, Tabak M. Ionic surfactants-Glossoscolex paulistus hemoglobin interactions: Characterization of species in the solution. Int J Biol Macromol 2016; 92:670-681. [PMID: 27456123 DOI: 10.1016/j.ijbiomac.2016.07.072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/18/2016] [Accepted: 07/21/2016] [Indexed: 12/18/2022]
Abstract
Glossoscolex paulistus hemoglobin (HbGp) is an oligomeric multisubunit protein with molecular mass of 3600kDa. In the current study, the interaction of sodium dodecyl sulfate (SDS) and cetyl trimethylammonium chloride (CTAC) surfactants with the monomer d and the whole oxy-HbGp, at pH 7.0, was investigated. For pure monomer d solution, SDS promotes the dimerization of subunit d, and the monomeric and dimeric forms have sedimentation coefficient values, s20,w, around 2.1-2.4 S and 2.9-3.2 S, respectively. Analytical ultracentrifugation (AUC) and isothermal titration calorimetry (ITC) data suggest that up to 26 DS- anions are bound to the monomer. In the presence of CTAC, only the monomeric form is observed in solution for subunit d. For the oxy-HbGp, SDS induces the dissociation into smaller subunits, such as, monomer d, trimer abc, and tetramer abcd, and unfolding without promoting the protein aggregation. On the other hand, lower CTAC concentration promotes protein aggregation, mainly of trimer, while higher concentration induces the unfolding of dissociated species. Our study provides strong evidence that surfactant effects upon the HbGp-subunits are different, and depend on the surfactant: protein concentration ratio and the charges of surfactant headgroups.
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Affiliation(s)
- Francisco A O Carvalho
- Instituto de Química de São Carlos, Universidade de São Paulo, Brazil; Faculdade de Química, Universidade Federal do Sul e Sudeste do Pará, Brazil.
| | - Fernanda R Alves
- Instituto de Química de São Carlos, Universidade de São Paulo, Brazil
| | - Marcel Tabak
- Instituto de Química de São Carlos, Universidade de São Paulo, Brazil
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8
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Roessler CG, Agarwal R, Allaire M, Alonso-Mori R, Andi B, Bachega JFR, Bommer M, Brewster AS, Browne MC, Chatterjee R, Cho E, Cohen AE, Cowan M, Datwani S, Davidson VL, Defever J, Eaton B, Ellson R, Feng Y, Ghislain LP, Glownia JM, Han G, Hattne J, Hellmich J, Héroux A, Ibrahim M, Kern J, Kuczewski A, Lemke HT, Liu P, Majlof L, McClintock WM, Myers S, Nelsen S, Olechno J, Orville AM, Sauter NK, Soares AS, Soltis SM, Song H, Stearns RG, Tran R, Tsai Y, Uervirojnangkoorn M, Wilmot CM, Yachandra V, Yano J, Yukl ET, Zhu D, Zouni A. Acoustic Injectors for Drop-On-Demand Serial Femtosecond Crystallography. Structure 2016; 24:631-640. [PMID: 26996959 DOI: 10.1016/j.str.2016.02.007] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 09/25/2015] [Accepted: 02/17/2016] [Indexed: 02/01/2023]
Abstract
X-ray free-electron lasers (XFELs) provide very intense X-ray pulses suitable for macromolecular crystallography. Each X-ray pulse typically lasts for tens of femtoseconds and the interval between pulses is many orders of magnitude longer. Here we describe two novel acoustic injection systems that use focused sound waves to eject picoliter to nanoliter crystal-containing droplets out of microplates and into the X-ray pulse from which diffraction data are collected. The on-demand droplet delivery is synchronized to the XFEL pulse scheme, resulting in X-ray pulses intersecting up to 88% of the droplets. We tested several types of samples in a range of crystallization conditions, wherein the overall crystal hit ratio (e.g., fraction of images with observable diffraction patterns) is a function of the microcrystal slurry concentration. We report crystal structures from lysozyme, thermolysin, and stachydrine demethylase (Stc2). Additional samples were screened to demonstrate that these methods can be applied to rare samples.
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Affiliation(s)
- Christian G Roessler
- Photon Sciences Division, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
| | - Rakhi Agarwal
- Biosciences Department, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
| | - Marc Allaire
- Photon Sciences Division, Brookhaven National Laboratory, Upton, NY 11973-5000, USA.
| | - Roberto Alonso-Mori
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Babak Andi
- Photon Sciences Division, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
| | - José F R Bachega
- Centro de Biotecnologia Molecular Estrutural, Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos, CEP: 13560-970, Brazil
| | - Martin Bommer
- Institut für Biologie, Humboldt-Universität zu Berlin, D-10099 Berlin, Germany
| | - Aaron S Brewster
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8177, USA
| | - Michael C Browne
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Ruchira Chatterjee
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8177, USA
| | - Eunsun Cho
- Department of Chemistry, Boston University, Boston, MA 02215-2521, USA
| | - Aina E Cohen
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Matthew Cowan
- Photon Sciences Division, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
| | | | - Victor L Davidson
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL 32816-2364, USA
| | - Jim Defever
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | | | | | - Yiping Feng
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | | | - James M Glownia
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Guangye Han
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8177, USA
| | - Johan Hattne
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8177, USA
| | - Julia Hellmich
- Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität, D-10623 Berlin, Germany; Institut für Biologie, Humboldt-Universität zu Berlin, D-10099 Berlin, Germany
| | - Annie Héroux
- Photon Sciences Division, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
| | - Mohamed Ibrahim
- Institut für Biologie, Humboldt-Universität zu Berlin, D-10099 Berlin, Germany
| | - Jan Kern
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8177, USA; Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Anthony Kuczewski
- Photon Sciences Division, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
| | - Henrik T Lemke
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Pinghua Liu
- Department of Chemistry, Boston University, Boston, MA 02215-2521, USA
| | | | | | - Stuart Myers
- Photon Sciences Division, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
| | - Silke Nelsen
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | | | - Allen M Orville
- Photon Sciences Division, Brookhaven National Laboratory, Upton, NY 11973-5000, USA; Biosciences Department, Brookhaven National Laboratory, Upton, NY 11973-5000, USA.
| | - Nicholas K Sauter
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8177, USA
| | - Alexei S Soares
- Photon Sciences Division, Brookhaven National Laboratory, Upton, NY 11973-5000, USA.
| | - S Michael Soltis
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Heng Song
- Department of Chemistry, Boston University, Boston, MA 02215-2521, USA
| | | | - Rosalie Tran
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8177, USA
| | - Yingssu Tsai
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA; Department of Chemistry, Stanford University, Stanford, CA 94305-4401, USA
| | | | - Carrie M Wilmot
- Department of Biochemistry, Molecular Biology & Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Vittal Yachandra
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8177, USA
| | - Junko Yano
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8177, USA
| | - Erik T Yukl
- Department of Biochemistry, Molecular Biology & Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Diling Zhu
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Athina Zouni
- Institut für Biologie, Humboldt-Universität zu Berlin, D-10099 Berlin, Germany
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9
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Ruggiero Bachega JF, Vasconcelos Maluf F, Andi B, D'Muniz Pereira H, Falsarella Carazzollea M, Orville AM, Tabak M, Brandão-Neto J, Garratt RC, Horjales Reboredo E. The structure of the giant haemoglobin from Glossoscolex paulistus. ACTA ACUST UNITED AC 2015; 71:1257-71. [PMID: 26057666 DOI: 10.1107/s1399004715005453] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 03/16/2015] [Indexed: 11/10/2022]
Abstract
The sequences of all seven polypeptide chains from the giant haemoglobin of the free-living earthworm Glossoscolex paulistus (HbGp) are reported together with the three-dimensional structure of the 3.6 MDa complex which they form. The refinement of the full particle, which has been solved at 3.2 Å resolution, the highest resolution reported to date for a hexagonal bilayer haemoglobin composed of 12 protomers, is reported. This has allowed a more detailed description of the contacts between subunits which are essential for particle stability. Interpretation of features in the electron-density maps suggests the presence of metal-binding sites (probably Zn(2+) and Ca(2+)) and glycosylation sites, some of which have not been reported previously. The former appear to be important for the integrity of the particle. The crystal structure of the isolated d chain (d-HbGp) at 2.1 Å resolution shows different interchain contacts between d monomers compared with those observed in the full particle. Instead of forming trimers, as seen in the complex, the isolated d chains associate to form dimers across a crystallographic twofold axis. These observations eliminate the possibility that trimers form spontaneously in solution as intermediates during the formation of the dodecameric globin cap and contribute to understanding of the possible ways in which the particle self-assembles.
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Affiliation(s)
| | | | - Babak Andi
- Photon Sciences Directorate, Brookhaven National Laboratory, Upton, New York, USA
| | | | - Marcelo Falsarella Carazzollea
- Laboratório de Genômica e Expressão, Departamento de Genética, Evolução e Bioagentes, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, Brazil
| | - Allen M Orville
- Photon Sciences Directorate, Brookhaven National Laboratory, Upton, New York, USA
| | - Marcel Tabak
- Instituto de Química de São Carlos, Universidade de São Paulo, São Carlos, Brazil
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10
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Barros AE, Carvalho FA, Alves FR, Carvalho JW, Tabak M. Denaturant effects on HbGp hemoglobin as monitored by 8-anilino-1-naphtalene-sulfonic acid (ANS) probe. Int J Biol Macromol 2015; 74:327-36. [DOI: 10.1016/j.ijbiomac.2014.12.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 12/17/2014] [Accepted: 12/18/2014] [Indexed: 10/24/2022]
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11
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Carvalho FAO, Alves FR, Carvalho JWP, Tabak M. Guanidine hydrochloride and urea effects upon thermal stability of Glossoscolex paulistus hemoglobin (HbGp). Int J Biol Macromol 2014; 74:18-28. [PMID: 25433131 DOI: 10.1016/j.ijbiomac.2014.11.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 11/17/2014] [Accepted: 11/19/2014] [Indexed: 11/16/2022]
Abstract
Glossoscolex paulistus hemoglobin (HbGp) has a molecular mass of 3600kDa. It belongs to the hexagonal bilayer hemoglobin class, which consists of highly cooperative respiratory macromolecules found in mollusks and annelids. The present work focusses on oxy-HbGp thermal stability, in the presence of urea and guanidine hydrochloride (GuHCl), monitored by several techniques. Initially, dynamic light scattering data show that the presence of GuHCl induces the protein oligomeric dissociation, followed by a significant 11-fold increase in the hydrodynamic diameter (DH) values, due to the formation of protein aggregates in solution. In contrast, urea promotes the HbGp oligomeric dissociation, followed by unfolding process at high temperatures, without aggregation. Circular dichroism data show that unfolding critical temperature (Tc) of oxy-HbGp decreases from 57°C, at 0.0 mol/L of the denaturant, to 45°C, in the presence of 3.5 mol/L of urea, suggesting the reduction of HbGp oligomeric stability. Moreover, differential scanning calorimetry results show that at lower GuHCl concentrations, some thermal stabilization of the hemoglobin is observed, whereas at higher concentrations, the reduction of stability takes place. Besides, HbGp is more stable in the presence of urea when compared with the guanidine effect, as deduced from the differences in the concentration range of denaturants.
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Affiliation(s)
| | - Fernanda R Alves
- Instituto de Química de São Carlos-Universidade de São Paulo, Brazil
| | - José W P Carvalho
- Instituto de Química de São Carlos-Universidade de São Paulo, Brazil; Universidade do Estado de Mato Grosso, MT, Brazil
| | - Marcel Tabak
- Instituto de Química de São Carlos-Universidade de São Paulo, Brazil
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Alves FR, Carvalho FAO, Carvalho JWP, Tabak M. Glossoscolex paulistus extracellular hemoglobin (HbGp) oligomeric dissociation upon interaction with sodium dodecyl sulfate: Isothermal titration calorimetry (ITC). Biopolymers 2014; 101:1065-76. [DOI: 10.1002/bip.22506] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 05/06/2014] [Accepted: 05/13/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Fernanda Rosa Alves
- Instituto de Química de São Carlos; Departamento de Química e Física Molecular, Universidade de São Paulo, São Carlos, SP; Brazil
| | - Francisco Adriano O. Carvalho
- Instituto de Química de São Carlos; Departamento de Química e Física Molecular, Universidade de São Paulo, São Carlos, SP; Brazil
| | - José Wilson P. Carvalho
- Instituto de Química de São Carlos; Departamento de Química e Física Molecular, Universidade de São Paulo, São Carlos, SP; Brazil
- Universidade do Estado de Mato Grosso; Campus Rene Barbour; Barra do Bugres MT Brazil
| | - Marcel Tabak
- Instituto de Química de São Carlos; Departamento de Química e Física Molecular, Universidade de São Paulo, São Carlos, SP; Brazil
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Carvalho JWP, Carvalho FAO, Batista T, Santiago PS, Tabak M. Cetyltrimethylammonium chloride (CTAC) effect on the thermal stability of oxy-HbGp: Dynamic light scattering (DLS) and small angle X-ray scattering (SAXS) studies. Colloids Surf B Biointerfaces 2014; 118:14-24. [DOI: 10.1016/j.colsurfb.2014.03.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 03/05/2014] [Accepted: 03/12/2014] [Indexed: 01/27/2023]
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Characterization of Rhinodrilus alatus hemoglobin (HbRa) and its subunits: Evidence for strong interaction with cationic surfactants DTAB and CTAC. Comp Biochem Physiol B Biochem Mol Biol 2014; 167:23-9. [DOI: 10.1016/j.cbpb.2013.09.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 09/23/2013] [Accepted: 09/23/2013] [Indexed: 11/15/2022]
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Carvalho FAO, Carvalho JWP, Alves FR, Tabak M. pH effect upon HbGp oligomeric stability: characterization of the dissociated species by AUC and DLS studies. Int J Biol Macromol 2013; 59:333-41. [DOI: 10.1016/j.ijbiomac.2013.04.070] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 04/24/2013] [Accepted: 04/25/2013] [Indexed: 10/26/2022]
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Carvalho JWP, Carvalho FA, Santiago PS, Tabak M. Thermal denaturation and aggregation of hemoglobin of Glossoscolex paulistus in acid and neutral media. Int J Biol Macromol 2013. [DOI: 10.1016/j.ijbiomac.2012.11.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Carvalho FA, Carvalho JWP, Santiago PS, Tabak M. Urea-induced unfolding of Glossoscolex paulistus hemoglobin, in oxy- and cyanomet-forms: A dissociation model. Int J Biol Macromol 2013; 52:340-8. [DOI: 10.1016/j.ijbiomac.2012.09.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 09/22/2012] [Accepted: 09/25/2012] [Indexed: 10/27/2022]
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Carvalho JWP, Santiago PS, Batista T, Salmon CEG, Barbosa LR, Itri R, Tabak M. On the temperature stability of extracellular hemoglobin of Glossoscolex paulistus, at different oxidation states: SAXS and DLS studies. Biophys Chem 2012; 163-164:44-55. [DOI: 10.1016/j.bpc.2012.02.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 02/04/2012] [Accepted: 02/06/2012] [Indexed: 10/28/2022]
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Elmer J, Palmer AF. Biophysical Properties of Lumbricus terrestris Erythrocruorin and Its Potential Use as a Red Blood Cell Substitute. J Funct Biomater 2012; 3:49-60. [PMID: 24956515 PMCID: PMC4031009 DOI: 10.3390/jfb3010049] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Revised: 12/09/2011] [Accepted: 12/24/2011] [Indexed: 01/21/2023] Open
Abstract
Previous generations of hemoglobin (Hb)-based oxygen carriers (HBOCs) have been plagued by key biophysical limitations that result in severe side-effects once transfused in vivo, including protein instability, high heme oxidation rates, and nitric oxide (NO) scavenging. All of these problems emerge after mammalian Hbs are removed from red blood cells (RBCs) and used for HBOC synthesis/formulation. Therefore, extracellular Hbs (erythrocruorins) from organisms which lack RBCs might serve as better HBOCs. This review focuses on the erythrocruorin of Lumbricus terrestris (LtEc), which has been shown to be extremely stable, resistant to oxidation, and may interact with NO differently than mammalian Hbs. All of these beneficial properties show that LtEc is a promising new HBOC which warrants further investigation.
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Affiliation(s)
- Jacob Elmer
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 425 Koffolt Laboratories, 140 West 19th Avenue, Columbus, OH 43210, USA.
| | - Andre F Palmer
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 425 Koffolt Laboratories, 140 West 19th Avenue, Columbus, OH 43210, USA.
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Further characterization of the subunits of the giant extracellular hemoglobin of Glossoscolex paulistus (HbGp) by SDS-PAGE electrophoresis and MALDI-TOF-MS. Process Biochem 2011. [DOI: 10.1016/j.procbio.2011.08.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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