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Zhou H, Chen X, Aweya JJ, Zhao Y, Yao D, Zhang Y. Interaction of Penaeus vannamei hemocyanin and α2-macroglobulin modulates the phenoloxidase activity. Mol Immunol 2021; 138:181-187. [PMID: 34450346 DOI: 10.1016/j.molimm.2021.08.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/19/2021] [Accepted: 08/19/2021] [Indexed: 11/19/2022]
Abstract
Prophenoloxidase (proPO)-activating system is a critical innate immune defense in invertebrates. However, the mechanisms involved in regulating the phenoloxidase (PO) activity in shrimp hemolymph remain ill-defined. Our previous studies showed that Penaeus vannamei hemocyanin (HMC) and α2-macroglobulin (α2M), two key regulators of proPO-activating system in plasma, might interact with each other, indicating that this interaction could be implicated in controlling PO activity. Herein, we further confirmed that HMC specifically bind to α2M using Pull down and Far-Western blot analyses. Further studies demonstrated that HMC could directly interact with the receptor binding domain of α2M. In addition, HMC and α2M followed similar expression pattern upon Vibrio parahaemolyticus infection, suggesting the interaction of HMC and α2M might have a role in immune response. Finally, we found that α2M, as a broad-spectrum proteinase inhibitor, suppressed the serum PO activity in vitro, while hemocyanin could partially restore this inhibitory effect. In sum, the present data indicate that HMC interacts with α2M and therefore modulates the PO activity. This finding contributes to better understanding of stable state maintenance of PO activity in shrimp.
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Affiliation(s)
- Hui Zhou
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Xibin Chen
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Jude Juventus Aweya
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Yongzhen Zhao
- Guangxi Academy of Fishery Sciences, Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Nanning, 530021, China
| | - Defu Yao
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China.
| | - Yueling Zhang
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, 511458, China.
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Johnson JG, Burnett LE, Burnett KG. Uncovering Hemocyanin Subunit Heterogeneity in Penaeid Shrimp using RNA-Seq. Integr Comp Biol 2016; 56:1080-1091. [DOI: 10.1093/icb/icw088] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
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Khalil M, Boubegtiten-Fezoua Z, Hellmann N, Hellwig P. Extraordinary stability of hemocyanins from L. polyphemus and E. californicum studied using infrared spectroscopy from 294 to 20 K. Phys Chem Chem Phys 2016; 18:28732-28739. [DOI: 10.1039/c6cp03510h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Infrared spectroscopic evidence of a high stability towards exposure to sub-zero temperatures for hemocyanins from the arthropods Limulus polyphemus and Eurypelma californicum.
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Affiliation(s)
- Mireille Khalil
- Laboratoire de Bioélectrochimie et Spectroscopie
- UMR 7140 Université de Strasbourg CNRS
- 1 Rue Blaise Pascal 67070
- France
| | - Zahia Boubegtiten-Fezoua
- Laboratoire de Bioélectrochimie et Spectroscopie
- UMR 7140 Université de Strasbourg CNRS
- 1 Rue Blaise Pascal 67070
- France
| | - Nadja Hellmann
- Institute for Molecular Biophysics
- University of Mainz
- 55128 Mainz
- Germany
| | - Petra Hellwig
- Laboratoire de Bioélectrochimie et Spectroscopie
- UMR 7140 Université de Strasbourg CNRS
- 1 Rue Blaise Pascal 67070
- France
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Dolashki A, Radkova M, Todorovska E, Ivanov M, Stevanovic S, Molin L, Traldi P, Voelter W, Dolashka P. Structure and Characterization of Eriphia verrucosa Hemocyanin. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2015; 17:743-752. [PMID: 26256301 DOI: 10.1007/s10126-015-9653-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 05/25/2015] [Indexed: 06/04/2023]
Abstract
Arthropod hemocyanins (Hcs) are a family of large extracellular oxygen-transporting proteins with high molecular mass and hexameric or multi-hexameric molecular assembly. This study reports for the first time the isolation and characterization of the structure of an arthropod hemocyanin from crab Eriphia verrucosa (EvH) living in the Black Sea. Its oligomeric quaternary structure is based on different arrangements of a basic 6 × 75 kDa hexameric unit, and four of them (EvH1, EvH2, EvH3, and EvH4) were identified using ion-exchange chromatography. Subunit 3 (EvH3) shows high similarity scores (75.0, 87.5, 91.7, and 75.0 %, respectively) by comparison of the N-terminal sequence of subunit 1 from Cancer pagurus of the North Sea (Cp1), subunits 3 and 6 of Cancer magister (Cm3 and Cm6), and subunit 2 of Carcinus aestuarii (CaSS2), respectively. Moreover, a partial cDNA sequence (1309 bp) of E. verrucosa hemocyanin encoding a protein of 435 amino acids was isolated. The deduced amino acid sequence shows a high degree of similarity with subunits 3, 4, 5, and 6 of C. magister (81-84 %). Most of the hemocyanins are glycosylated, and three putative O-linkage sites were identified in the partial amino acid sequence of EvH at positions 444-446, 478-480, and 547-549, respectively. The higher stability of native Hc in comparison to its subunit EvH4 as determined by circular dichroism (CD) could be explained with the formation of a stabilizing quaternary structure.
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Affiliation(s)
- A Dolashki
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, G. Bonchev str. 9, Sofia, 1113, Bulgaria
| | - M Radkova
- AgroBioInstitute, 8 Dragan Tsankov, Str., 1164, Sofia, Bulgaria
| | - E Todorovska
- AgroBioInstitute, 8 Dragan Tsankov, Str., 1164, Sofia, Bulgaria
| | - M Ivanov
- AgroBioInstitute, 8 Dragan Tsankov, Str., 1164, Sofia, Bulgaria
| | - S Stevanovic
- Institute for Cell Biology, Department of Immunology, University of Tübingen, Auf der Morgenstelle 15, D-72076, Tϋbingen, Germany
| | - L Molin
- CNR-ISTM, Corso Stati Uniti 4, 35129, Padova, Italy
| | - P Traldi
- CNR-ISTM, Corso Stati Uniti 4, 35129, Padova, Italy
| | - W Voelter
- Interfacultary Institute of Biochemistry, University of Tϋbingen, Hoppe-Seyler-Str. 4, D-72076, Tϋbingen, Germany
| | - P Dolashka
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, G. Bonchev str. 9, Sofia, 1113, Bulgaria.
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Oellermann M, Strugnell JM, Lieb B, Mark FC. Positive selection in octopus haemocyanin indicates functional links to temperature adaptation. BMC Evol Biol 2015; 15:133. [PMID: 26142723 PMCID: PMC4491423 DOI: 10.1186/s12862-015-0411-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 06/04/2015] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Octopods have successfully colonised the world's oceans from the tropics to the poles. Yet, successful persistence in these habitats has required adaptations of their advanced physiological apparatus to compensate impaired oxygen supply. Their oxygen transporter haemocyanin plays a major role in cold tolerance and accordingly has undergone functional modifications to sustain oxygen release at sub-zero temperatures. However, it remains unknown how molecular properties evolved to explain the observed functional adaptations. We thus aimed to assess whether natural selection affected molecular and structural properties of haemocyanin that explains temperature adaptation in octopods. RESULTS Analysis of 239 partial sequences of the haemocyanin functional units (FU) f and g of 28 octopod species of polar, temperate, subtropical and tropical origin revealed natural selection was acting primarily on charge properties of surface residues. Polar octopods contained haemocyanins with higher net surface charge due to decreased glutamic acid content and higher numbers of basic amino acids. Within the analysed partial sequences, positive selection was present at site 2545, positioned between the active copper binding centre and the FU g surface. At this site, methionine was the dominant amino acid in polar octopods and leucine was dominant in tropical octopods. Sites directly involved in oxygen binding or quaternary interactions were highly conserved within the analysed sequence. CONCLUSIONS This study has provided the first insight into molecular and structural mechanisms that have enabled octopods to sustain oxygen supply from polar to tropical conditions. Our findings imply modulation of oxygen binding via charge-charge interaction at the protein surface, which stabilize quaternary interactions among functional units to reduce detrimental effects of high pH on venous oxygen release. Of the observed partial haemocyanin sequence, residue 2545 formed a close link between the FU g surface and the active centre, suggesting a role as allosteric binding site. The prevalence of methionine at this site in polar octopods, implies regulation of oxygen affinity via increased sensitivity to allosteric metal binding. High sequence conservation of sites directly involved in oxygen binding indicates that functional modifications of octopod haemocyanin rather occur via more subtle mechanisms, as observed in this study.
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Affiliation(s)
- Michael Oellermann
- Integrative Ecophysiology, Alfred-Wegener-Institute Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570, Bremerhaven, Germany.
| | - Jan M Strugnell
- Department of Genetics, La Trobe Institute for Molecular Sciences, La Trobe University, Bundoora, VIC, 3086, Australia.
| | - Bernhard Lieb
- Institute of Zoology, Johannes Gutenberg-Universität, Müllerweg 6, 55099, Mainz, Germany.
| | - Felix C Mark
- Integrative Ecophysiology, Alfred-Wegener-Institute Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570, Bremerhaven, Germany.
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Dolashki A, Radkova M, Todorovska E, Ivanov M, Stevanovic S, Molin L, Traldi P, Voelter W, Dolashka P. RETRACTED ARTICLE: Structure and characterization of cancer pagurus hemocyanin. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2015; 17:375. [PMID: 25503855 DOI: 10.1007/s10126-014-9609-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Accepted: 11/09/2014] [Indexed: 06/04/2023]
Affiliation(s)
- Aleksandar Dolashki
- Institute of Organic Chemistry, Bulgarian Academy of Sciences, G. Bonchev 9, Sofia, 1113, Bulgaria
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Coates CJ, Nairn J. Diverse immune functions of hemocyanins. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2014; 45:43-55. [PMID: 24486681 DOI: 10.1016/j.dci.2014.01.021] [Citation(s) in RCA: 192] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Revised: 01/24/2014] [Accepted: 01/25/2014] [Indexed: 06/03/2023]
Abstract
Substantial evidence gathered recently has revealed the multiple functionalities of hemocyanin. Contrary to previous claims that this ancient protein is involved solely in oxygen transport within the hemolymph of invertebrates, hemocyanin and hemocyanin-derived peptides have been linked to key aspects of innate immunity, in particular, antiviral and phenoloxidase-like activities. Both phenoloxidase and hemocyanin belong to the family of type-3 copper proteins and share a high degree of sequence homology. While the importance of phenoloxidase in immunity and development is well characterised, the contribution of hemocyanin to biological defence systems within invertebrates is not recognised widely. This review focusses on the conversion of hemocyanin into a phenoloxidase-like enzyme and the array of hemocyanin-derived immune responses documented to date.
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Affiliation(s)
- Christopher J Coates
- Biological and Environmental Sciences, School of Natural Sciences, University of Stirling, Stirling FK9 4LA, Scotland, UK.
| | - Jacqueline Nairn
- Biological and Environmental Sciences, School of Natural Sciences, University of Stirling, Stirling FK9 4LA, Scotland, UK
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