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A Molecular Mechanism to Explain the Nickel-Induced Changes in Protamine-like Proteins and Their DNA Binding Affecting Sperm Chromatin in Mytilus galloprovincialis: An In Vitro Study. Biomolecules 2023; 13:biom13030520. [PMID: 36979455 PMCID: PMC10046793 DOI: 10.3390/biom13030520] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 02/03/2023] [Accepted: 03/09/2023] [Indexed: 03/18/2023] Open
Abstract
Nickel is associated with reproductive toxicity, but little is known about the molecular mechanisms of nickel-induced effects on sperm chromatin and protamine-like proteins (PLs). In the present work, we analyzed PLs from Mytilus galloprovincialis by urea-acetic acid polyacrylamide gel electrophoresis (AU-PAGE) and SDS-PAGE and assessed their binding to DNA by Electrophoretic Mobility Shift Assay (EMSA) after exposing mussels to 5, 15, and 35 µM NiCl2 for 24 h. In addition, a time course of digestion with MNase and release of PLs from sperm nuclei by the NaCl gradient was performed. For all exposure doses, in AU-PAGE, there was an additional migrating band between PL-III and PL-IV, corresponding to a fraction of PLs in the form of peptides detected by SDS-PAGE. Alterations in DNA binding of PLs were observed by EMSA after exposure to 5 and 15 µM NiCl2, while, at all NiCl2 doses, increased accessibility of MNase to sperm chromatin was found. The latter was particularly relevant at 15 µM NiCl2, a dose at which increased release of PLII and PLIII from sperm nuclei and the highest value of nickel accumulated in the gonads were also found. Finally, at all exposure doses, there was also an increase in PARP expression, but especially at 5 µM NiCl2. A possible molecular mechanism for the toxic reproductive effects of nickel in Mytilus galloprovincialis is discussed.
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Perrone P, Lettieri G, Marinaro C, Longo V, Capone S, Forleo A, Pappalardo S, Montano L, Piscopo M. Molecular Alterations and Severe Abnormalities in Spermatozoa of Young Men Living in the "Valley of Sacco River" (Latium, Italy): A Preliminary Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph191711023. [PMID: 36078739 PMCID: PMC9518305 DOI: 10.3390/ijerph191711023] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/24/2022] [Accepted: 08/31/2022] [Indexed: 05/27/2023]
Abstract
The Valley of Sacco River (VSR) (Latium, Italy) is an area with large-scale industrial chemical production that has led over time to significant contamination of soil and groundwater with various industrial pollutants, such as organic pesticides, dioxins, organic solvents, heavy metals, and particularly, volatile organic compounds (VOCs). In the present study, we investigated the potential impact of VOCs on the spermatozoa of healthy young males living in the VSR, given the prevalent presence of several VOCs in the semen of these individuals. To accomplish this, spermiograms were conducted followed by molecular analyses to assess the content of sperm nuclear basic proteins (SNBPs) in addition to the protamine-histone ratio and DNA binding of these proteins. We found drastic alterations in the spermatozoa of these young males living in the VSR. Alterations were seen in sperm morphology, sperm motility, sperm count, and protamine/histone ratios, and included significant reductions in SNBP-DNA binding capacity. Our results provide preliminary indications of a possible correlation between the observed alterations and the presence of specific VOCs.
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Affiliation(s)
- Pasquale Perrone
- Department of Biology, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy
- Department of Precision Medicine, School of Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Gennaro Lettieri
- Department of Biology, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy
| | - Carmela Marinaro
- Department of Biology, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy
| | - Valentina Longo
- Institute for Microelectronics and Microsystems (IMM), National Research Council of Italy (CNR), 73100 Lecce, Italy
| | - Simonetta Capone
- Institute for Microelectronics and Microsystems (IMM), National Research Council of Italy (CNR), 73100 Lecce, Italy
| | - Angiola Forleo
- Institute for Microelectronics and Microsystems (IMM), National Research Council of Italy (CNR), 73100 Lecce, Italy
| | | | - Luigi Montano
- Andrology Unit and Service of Lifestyle Medicine in UroAndrology, Local Health Authority (ASL) Salerno, Coordination Unit of the Network for Environmental and Reproductive Health (EcoFoodFertility Project),
Oliveto Citra Hospital, 84020 Oliveto Citra, Italy
- PhD Program in Evolutionary Biology and Ecology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Marina Piscopo
- Department of Biology, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy
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Moriello C, Costabile M, Spinelli M, Amoresano A, Palumbo G, Febbraio F, Piscopo M. Altered Expression of Protamine-like and Their DNA Binding Induced by Cr(VI): A Possible Risk to Spermatogenesis? Biomolecules 2022; 12:biom12050700. [PMID: 35625627 PMCID: PMC9138527 DOI: 10.3390/biom12050700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/09/2022] [Accepted: 05/11/2022] [Indexed: 02/01/2023] Open
Abstract
Chromium (VI) is the most dangerous oxidation state among the stable forms of chromium. In this work, we evaluated the effect of exposing Mytilus galloprovincialis for 24 h to 1, 10, and 100 nM chromium (VI) on the properties of Protamine-like (PLs) and their gene levels in the gonads. Specifically, we analyzed, by AU-PAGE and SDS-PAGE, PLs extracted from unexposed and exposed mussels. In addition, via EMSA, we evaluated the ability of PLs to bind DNA and also verified their potential to protect DNA from oxidative damage. Finally, we assessed possible alterations in gonadal expression of mt10, hsp70, and genes encoding for PLs-II/PL-IV and PL-III. We found that for all experimental approaches the most relevant alterations occurred after exposure to 1 nM Cr(VI). In particular, a comigration of PL-II with PL-III was observed by SDS-PAGE; and a reduced ability of PLs to bind and protect DNA from oxidative damage was recorded. This dose of chromium (VI) exposure was also the one that produced the greatest alterations in the expression of both mt10 and PL-II/PL-IV encoding genes. All of these changes suggest that this dose of chromium (VI) exposure could affect the reproductive health of Mytilus galloprovincialis.
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Affiliation(s)
- Claudia Moriello
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.M.); (M.C.)
| | - Martina Costabile
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.M.); (M.C.)
| | - Michele Spinelli
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (M.S.); (A.A.)
| | - Angela Amoresano
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (M.S.); (A.A.)
| | - Giancarlo Palumbo
- Commodity Science Laboratory, Department of Economics, Management and Institutions, University of Naples Federico II, 80126 Naples, Italy;
| | - Ferdinando Febbraio
- Institute of Biochemistry and Cell Biology, National Research Council (CNR), Via Pietro Castellino 111, 80131 Naples, Italy;
| | - Marina Piscopo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.M.); (M.C.)
- Correspondence:
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DNA sequence-dependent positioning of the linker histone in a nucleosome: A single-pair FRET study. Biophys J 2021; 120:3747-3763. [PMID: 34293303 DOI: 10.1016/j.bpj.2021.07.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 06/25/2021] [Accepted: 07/13/2021] [Indexed: 01/01/2023] Open
Abstract
Linker histones (LHs) bind to nucleosomes with their globular domain (gH) positioned in either an on- or an off-dyad binding mode. Here, we study the effect of the linker DNA (L-DNA) sequence on the binding of a full-length LH, Xenopus laevis H1.0b, to a Widom 601 nucleosome core particle (NCP) flanked by two 40 bp long L-DNA arms, by single-pair FRET spectroscopy. We varied the sequence of the 11 bp of L-DNA adjoining the NCP on either side, making the sequence either A-tract, purely GC, or mixed with 64% AT. The labeled gH consistently exhibited higher FRET efficiency with the labeled L-DNA containing the A-tract than that with the pure-GC stretch, even when the stretches were swapped. However, it did not exhibit higher FRET efficiency with the L-DNA containing 64% AT-rich mixed DNA when compared to the pure-GC stretch. We explain our observations with a model that shows that the gH binds on dyad and that two arginines mediate recognition of the A-tract via its characteristically narrow minor groove. To investigate whether this on-dyad minor groove-based recognition was distinct from previously identified off-dyad major groove-based recognition, a nucleosome was designed with A-tracts on both the L-DNA arms. One A-tract was complementary to thymine and the other to deoxyuridine. The major groove of the thymine-tract was lined with methyl groups that were absent from the major groove of the deoxyuridine tract. The gH exhibited similar FRET for both these A-tracts, suggesting that it does not interact with the thymine methyl groups exposed on the major groove. Our observations thus complement previous studies that suggest that different LH isoforms may employ different ways of recognizing AT-rich DNA and A-tracts. This adaptability may enable the LH to universally compact scaffold-associated regions and constitutive heterochromatin, which are rich in such sequences.
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Lettieri G, Notariale R, Ambrosino A, Di Bonito A, Giarra A, Trifuoggi M, Manna C, Piscopo M. Spermatozoa Transcriptional Response and Alterations in PL Proteins Properties after Exposure of Mytilus galloprovincialis to Mercury. Int J Mol Sci 2021; 22:ijms22041618. [PMID: 33562685 PMCID: PMC7915165 DOI: 10.3390/ijms22041618] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 01/21/2021] [Accepted: 02/03/2021] [Indexed: 12/18/2022] Open
Abstract
Mercury (Hg) is an environmental pollutant that impacts human and ecosystem health. In our previous works, we reported alterations in the properties of Mytilus galloprovincialis protamine-like (PL) proteins after 24 h of exposure to subtoxic doses of toxic metals such as copper and cadmium. The present work aims to assess the effects of 24 h of exposure to 1, 10, and 100 pM HgCl2 on spermatozoa and PL proteins of Mytilus galloprovincialis. Inductively coupled plasma–mass spectrometry indicated accumulation of this metal in the gonads of exposed mussels. Further, RT-qPCR analyses showed altered expression levels of spermatozoa mt10 and hsp70 genes. In Mytilus galloprovincialis, PL proteins represent the major basic component of sperm chromatin. These proteins, following exposure of mussels to HgCl2, appeared, by SDS-PAGE, partly as aggregates and showed a decreased DNA-binding capacity that rendered them unable to prevent DNA damage, in the presence of CuCl2 and H2O2. These results demonstrate that even these doses of HgCl2 exposure could affect the properties of PL proteins and result in adverse effects on the reproductive system of this organism. These analyses could be useful in developing rapid and efficient chromatin-based genotoxicity assays for pollution biomonitoring programs.
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Affiliation(s)
- Gennaro Lettieri
- Department of Biology, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (G.L.); (A.A.); (A.D.B.)
| | - Rosaria Notariale
- Department of Precision Medicine, School of Medicine, University of Campania “Luigi Vanvitelli”, Via Luigi de Crecchio, 80138 Naples, Italy; (R.N.); (C.M.)
| | - Alessia Ambrosino
- Department of Biology, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (G.L.); (A.A.); (A.D.B.)
| | - Alfredo Di Bonito
- Department of Biology, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (G.L.); (A.A.); (A.D.B.)
| | - Antonella Giarra
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (A.G.); (M.T.)
| | - Marco Trifuoggi
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (A.G.); (M.T.)
| | - Caterina Manna
- Department of Precision Medicine, School of Medicine, University of Campania “Luigi Vanvitelli”, Via Luigi de Crecchio, 80138 Naples, Italy; (R.N.); (C.M.)
| | - Marina Piscopo
- Department of Biology, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (G.L.); (A.A.); (A.D.B.)
- Correspondence:
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Lettieri G, Marra F, Moriello C, Prisco M, Notari T, Trifuoggi M, Giarra A, Bosco L, Montano L, Piscopo M. Molecular Alterations in Spermatozoa of a Family Case Living in the Land of Fires. A First Look at Possible Transgenerational Effects of Pollutants. Int J Mol Sci 2020; 21:ijms21186710. [PMID: 32933216 PMCID: PMC7555199 DOI: 10.3390/ijms21186710] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/09/2020] [Accepted: 09/11/2020] [Indexed: 02/07/2023] Open
Abstract
In our previous work, we reported alterations in protamines/histones ratio, in DNA binding of these proteins and their involvement in DNA oxidative damage in 84% of the young men living in the Land of Fires. In the present work, we extended our findings, evaluating any alterations in spermatozoa of a family case, a father and son, living in this area, to also give a first look at the possibility of transgenerational inherited effects of environmental contaminants on the molecular alterations of sperm nuclear basic proteins (SNBP), DNA and semen parameters. In the father and son, we found a diverse excess of copper and chromium in the semen, different alterations in SNBP content and low DNA binding affinity of these proteins. In addition, DNA damage, in the presence of CuCl2 and H2O2, increased by adding both the father and son SNBP. Interestingly, son SNBP, unlike his father, showed an unstable DNA binding and were able to produce DNA damage even without external addition of CuCl2, in line with a lower seminal antioxidant activity than the father. The peculiarity of some characteristics of son semen could be a basis for possible future studies on transgenerational effects of pollutants on fertility.
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Affiliation(s)
- Gennaro Lettieri
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (F.M.); (C.M.); (M.P.)
| | - Federica Marra
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (F.M.); (C.M.); (M.P.)
| | - Claudia Moriello
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (F.M.); (C.M.); (M.P.)
| | - Marina Prisco
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (F.M.); (C.M.); (M.P.)
| | - Tiziana Notari
- Check Up—Day Surgery, Polydiagnostic and Research Centre, Reproductive Medicine Unit, 84131 Salerno, Italy;
| | - Marco Trifuoggi
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (M.T.); (A.G.)
| | - Antonella Giarra
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (M.T.); (A.G.)
| | - Liana Bosco
- Department of Biological, Chemistry and Pharmaceutical Sciences and Technologies, University of Palermo, Viale delle Scienze Ed.16, 90128 Palermo, Italy;
| | - Luigi Montano
- Andrology Unit of the “S. Francesco d’Assisi” Hospital, Local Health Authority (ASL) Salerno, EcoFoodFertility Project Coordination Unit, 84020 Oliveto Citra, Italy
- Correspondence: (L.M.); (M.P.); Tel.: +39-082-879-7111 (ext. 271) (L.M.); +39-081-679-081 (M.P.)
| | - Marina Piscopo
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (F.M.); (C.M.); (M.P.)
- Correspondence: (L.M.); (M.P.); Tel.: +39-082-879-7111 (ext. 271) (L.M.); +39-081-679-081 (M.P.)
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Lettieri G, D’Agostino G, Mele E, Cardito C, Esposito R, Cimmino A, Giarra A, Trifuoggi M, Raimondo S, Notari T, Febbraio F, Montano L, Piscopo M. Discovery of the Involvement in DNA Oxidative Damage of Human Sperm Nuclear Basic Proteins of Healthy Young Men Living in Polluted Areas. Int J Mol Sci 2020; 21:ijms21124198. [PMID: 32545547 PMCID: PMC7349829 DOI: 10.3390/ijms21124198] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/01/2020] [Accepted: 06/10/2020] [Indexed: 12/20/2022] Open
Abstract
DNA oxidative damage is one of the main concerns being implicated in severe cell alterations, promoting different types of human disorders and diseases. For their characteristics, male gametes are the most sensitive cells to the accumulation of damaged DNA. We have recently reported the relevance of arginine residues in the Cu(II)-induced DNA breakage of sperm H1 histones. In this work, we have extended our previous findings investigating the involvement of human sperm nuclear basic proteins on DNA oxidative damage in healthy males presenting copper and chromium excess in their semen. We found in 84% of those males an altered protamines/histones ratio and a different DNA binding mode even for those presenting a canonical protamines/histones ratio. Furthermore, all the sperm nuclear basic proteins from these samples that resulted were involved in DNA oxidative damage, supporting the idea that these proteins could promote the Fenton reaction in DNA proximity by increasing the availability of these metals near the binding surface of DNA. In conclusion, our study reveals a new and unexpected behavior of human sperm nuclear basic proteins in oxidative DNA damage, providing new insights for understanding the mechanisms related to processes in which oxidative DNA damage is implicated.
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Affiliation(s)
- Gennaro Lettieri
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (G.D.); (E.M.); (C.C.); (R.E.)
| | - Giovanni D’Agostino
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (G.D.); (E.M.); (C.C.); (R.E.)
| | - Elena Mele
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (G.D.); (E.M.); (C.C.); (R.E.)
| | - Carolina Cardito
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (G.D.); (E.M.); (C.C.); (R.E.)
| | - Rosa Esposito
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (G.D.); (E.M.); (C.C.); (R.E.)
| | - Annalinda Cimmino
- CNR, Institute of Biochemistry and Cell Biology, via Pietro Castellino, 80131 Naples, Italy;
| | - Antonella Giarra
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (A.G.); (M.T.)
| | - Marco Trifuoggi
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 21, 80126 Naples, Italy; (A.G.); (M.T.)
| | | | - Tiziana Notari
- GEA—Gynecology Embryology Andrology—Reproductive Medicine Unit of Check Up Polydiagnostic Center, 84131 Salerno, Italy;
| | - Ferdinando Febbraio
- CNR, Institute of Biochemistry and Cell Biology, via Pietro Castellino, 80131 Naples, Italy;
- Correspondence: (F.F.); (L.M.); (M.P.); Tel.: +39-081-613-2611 (F.F.); +39-082-879-7111 (ext. 271) (L.M.); +39-081-679-081 (M.P.)
| | - Luigi Montano
- Andrology Unit of the “S. Francesco d’Assisi” Hospital, Local Health Authority (ASL) Salerno, EcoFoodFertility Project Coordination Unit, 84020 Oliveto Citra, Italy
- Correspondence: (F.F.); (L.M.); (M.P.); Tel.: +39-081-613-2611 (F.F.); +39-082-879-7111 (ext. 271) (L.M.); +39-081-679-081 (M.P.)
| | - Marina Piscopo
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy; (G.L.); (G.D.); (E.M.); (C.C.); (R.E.)
- Correspondence: (F.F.); (L.M.); (M.P.); Tel.: +39-081-613-2611 (F.F.); +39-082-879-7111 (ext. 271) (L.M.); +39-081-679-081 (M.P.)
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Piscopo M. Seasonal dependence of cadmium molecular effects on Mytilus galloprovincialis (Lamarck, 1819) protamine-like protein properties. Mol Reprod Dev 2019; 86:1418-1429. [PMID: 31317589 DOI: 10.1002/mrd.23240] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 07/01/2019] [Indexed: 01/01/2023]
Abstract
Mussels have a seasonal reproduction and cadmium is a common stressor in estuarine and coastal environments. In previous studies, we have shown that exposure to subtoxic doses of cadmium produced alterations in the properties of winter Mytilus galloprovincialis sperm protamine-like (PL) proteins. In this study, it was analyzed the possibility that these cadmium effects may be seasonal. Winter and summer mussels were exposed to CdCl2 , and it was tested the PL-proteins for cadmium bioaccumulation, electrophoretic pattern, DNA binding, and potentiality to induce DNA oxidative damage. It was found that cadmium exposure did not produce the same effects on PL-proteins of summer mussels that were produced on PL-proteins of winter mussels, that is: cadmium bioaccumulation, alterations in the acetic acid-urea polyacrylamide gels (AU-PAGE) and sodium dodecyl sulfate-PAGE pattern, a reduced DNA binding affinity and the ability to induce DNA oxidative damage. PL-proteins from summer mussels, apart from not being affected by all the abovementioned effects of cadmium, also showed a very low DNA binding affinity, independent of cadmium exposure. This study reveals clock-associated seasonal responses to cadmium in M. galloprovincialis. Understanding the mechanisms through which environmental signals guide biological rhythms is fundamental to understanding the seasonal sensitivity of this bioindicator, to use M. galloprovincialis in appropriate seasonal periods.
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Affiliation(s)
- Marina Piscopo
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, Napoli, Italy
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Lettieri G, Maione M, Ranauda MA, Mele E, Piscopo M. Molecular effects on spermatozoa of Mytilus galloprovincialis exposed to hyposaline conditions. Mol Reprod Dev 2019; 86:650-660. [PMID: 30938011 DOI: 10.1002/mrd.23141] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/06/2019] [Accepted: 03/13/2019] [Indexed: 02/06/2023]
Abstract
Salinity represents a critical environmental and an ecological factor in the reproduction of marine species. As global climate changes and anthropogenic factors affect salinity, in this study, we have analyzed the responses of Mytilus galloprovincialis spermatozoa to hyposaline stress. We exposed mussels, in laboratory tanks, for 24 hr at 18°C to control (35.9 psu) and three hyposaline (17.1, 22.6, and 26.2 psu) conditions, and evaluated the expression of sperm hsp70 and protamine-like proteins genes. Further we analyzed the electrophoretic pattern, the DNA binding and the release from sperm nuclei of protamine-like proteins. For all experimental approaches used, the results obtained at 17.1 psu condition were very similar to those obtained in the control condition, while alterations were always recorded at 22.6 and 26.2 psu conditions. Particularly, at 22.6 and 26.2 psu, was observed: 42.5- and 17.1-fold increase in hsp70 expression, respectively, and hypoexpression of PL-II/PLIV protamine-like proteins genes. Further, electrophoretic mobility shift assays and salt-induced release of nuclear proteins from sperm nuclei, revealed alterations in the PL proteins/DNA binding, in these two hyposaline conditions. The similarity between the results obtained in control and in the more severe hyposaline condition (17.1 psu) could indicate a phenomenon of fertility preservation strategy due to gamete plasticity.
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Affiliation(s)
- Gennaro Lettieri
- Dipartimento di Biologia, Università degli Studki di Napoli Federico II, Napoli, Italy
| | - Martina Maione
- Dipartimento di Biologia, Università degli Studki di Napoli Federico II, Napoli, Italy
| | | | - Elena Mele
- Dipartimento di Biologia, Università degli Studki di Napoli Federico II, Napoli, Italy
| | - Marina Piscopo
- Dipartimento di Biologia, Università degli Studki di Napoli Federico II, Napoli, Italy
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De Guglielmo V, Puoti R, Notariale R, Maresca V, Ausió J, Troisi J, Verrillo M, Basile A, Febbraio F, Piscopo M. Alterations in the properties of sperm protamine-like II protein after exposure of Mytilus galloprovincialis (Lamarck 1819) to sub-toxic doses of cadmium. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 169:600-606. [PMID: 30496991 DOI: 10.1016/j.ecoenv.2018.11.069] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 10/17/2018] [Accepted: 11/16/2018] [Indexed: 05/25/2023]
Abstract
Protamine-like proteins (PL-II, PL-III and PL-IV) represent the major basic nuclear component of Mytilus galloprovincialis L sperm chromatin. The present study investigates the effects induced on the properties of PL-II protein after exposure of Mytilus galloprovincialis L for 24 h to 1.5 and 5 µM CdCl2. We found cadmium accumulation in protamine-like proteins with a linear grow up with the exposition dose. In particular, after 5 µM CdCl2 mussels exposure, the mobility of PL-II band changed in SDS-PAGE, suggesting structural rearrangement in presence of cadmium. Structural analysis using fluorescent probes, indicated that at 5 µM CdCl2 the complete conformational change of PL-II protein was reached. In the same condition of mussels exposure of 5 µM CdCl2, PL-II protein changed its DNA binding mode, which determined a closer DNA binding, because higher amount of NaCl were required for PL-II protein release by sperm nuclei. These results supported the hypothesis that mussel exposure to this CdCl2 dose, although lower to toxic ones, affects the properties of this protein and as a consequence chromatin organization of spermatozoa that is essential for the success of fertilization.
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Affiliation(s)
- Virgilia De Guglielmo
- University of Naples Federico II, Dept. of Biology, via Cinthia, 80126 Naples, Italy
| | - Raffaela Puoti
- University of Naples Federico II, Dept. of Biology, via Cinthia, 80126 Naples, Italy
| | - Rosaria Notariale
- University of Naples Federico II, Dept. of Biology, via Cinthia, 80126 Naples, Italy
| | - Viviana Maresca
- University of Naples Federico II, Dept. of Biology, via Cinthia, 80126 Naples, Italy
| | - Juan Ausió
- University of Victoria, Dept. of Biochemistry & Microbiology, Victoria, British Columbia, Canada
| | - Jacopo Troisi
- Theoreo srl-spin-off dell'Universita` degli Studi di Salerno, 84090 Salerno, Italy
| | - Mariavittoria Verrillo
- University of Naples Federico II, Dept. of Agricultural Sciences, Via Università 100, 84055 Portici, Italy
| | - Adriana Basile
- University of Naples Federico II, Dept. of Biology, via Cinthia, 80126 Naples, Italy
| | - Ferdinando Febbraio
- CNR, Institute of Protein Biochemistry, via Pietro Castellino 111, 80131 Naples, Italy.
| | - Marina Piscopo
- University of Naples Federico II, Dept. of Biology, via Cinthia, 80126 Naples, Italy.
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11
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Lettieri G, Mollo V, Ambrosino A, Caccavale F, Troisi J, Febbraio F, Piscopo M. Molecular effects of copper on the reproductive system of mytilus galloprovincialis. Mol Reprod Dev 2019; 86:1357-1368. [PMID: 30648312 DOI: 10.1002/mrd.23114] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 01/11/2019] [Indexed: 01/21/2023]
Abstract
This study aims to assess the effects induced by 24 hr exposure to a subtoxic copper concentration on the reproductive system (gonads, spermatozoa, and protamine-like [PL] proteins) of Mytilus galloprovincialis. Inductively coupled plasma-mass spectrometry indicated accumulation of this metal in gonads, spermatozoa, and PL proteins of exposed mussels. Further, real-time polymerase chain reaction analyses showed altered expression levels of mt10 and PL proteins genes in spermatozoa and gonads, respectively, of exposed mussels. Protamine-like proteins, which represent the main basic component of sperm chromatin of this organism, showed a higher DNA binding affinity and a different DNA binding mode in exposed mussels. Moreover, an increased amount of NaCl was required for the release from sperm nuclei of PL-III, the main PL protein component. Finally, PL proteins extracted from exposed mussels promoted DNA oxidative damage in the presence of H 2 O 2. These results demonstrate that the tolerable copper amount could also affect the properties of PL proteins and determine the negative effects on the reproductive system of this organism. These analyses could be useful to develop quick and efficient chromatin-based genotoxicity tests for pollution biomonitoring programs.
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Affiliation(s)
- Gennaro Lettieri
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Velia Mollo
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Alessia Ambrosino
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Filomena Caccavale
- Department of Biology, University of Naples Federico II, Naples, Italy.,Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Napoli, Italy
| | - Jacopo Troisi
- Theoreo srl-spin-off, Company of the University of Salerno, Salerno, Italy
| | - Ferdinando Febbraio
- Institute of Protein Biochemistry, National Research Council of Italy, Naples, Italy
| | - Marina Piscopo
- Department of Biology, University of Naples Federico II, Naples, Italy
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12
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Piscopo M, Tenore GC, Notariale R, Maresca V, Maisto M, de Ruberto F, Heydari M, Sorbo S, Basile A. Antimicrobial and antioxidant activity of proteins from Feijoa sellowiana Berg. fruit before and after in vitro gastrointestinal digestion. Nat Prod Res 2019; 34:2607-2611. [PMID: 30600713 DOI: 10.1080/14786419.2018.1543686] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In this paper we report for the first time a method for the extraction of the protein fraction from Feijoa sellowiana Berg. fruit and its electrophoretic analysis. In addition we analyzed the protein fraction for its antioxidant activity and its effectiveness against different Gram-positive and Gram-negative bacteria both as American type culture collection (ATCC) standard and clinically isolated strains. Both antimicrobial and antioxidant activity resulted stronger respect to that previously obtained for the acetonic extract from the same fruit. Further, we study both activities also on the product of in vitro gastrointestinal digestion of F. sellowiana fruit proteins. The results showed that in vitro gastrointestinal digestion increased 10 fold the antioxidant activity, while the antimicrobial activity, tested only on ATCC strains, resulted from 2 to 4 fold increased. MTT assays showed the non-toxicity of these proteins both before and after digestion.
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Affiliation(s)
- Marina Piscopo
- Department of Biology, University of Naples "Federico II", Napoli, Italy
| | - Gian Carlo Tenore
- Department of Farmacy, University of Napoli Federico II, Napoli, Italy
| | - Rosaria Notariale
- Department of Biology, University of Naples "Federico II", Napoli, Italy
| | - Viviana Maresca
- Department of Biology, University of Naples "Federico II", Napoli, Italy
| | - Maria Maisto
- Department of Farmacy, University of Napoli Federico II, Napoli, Italy
| | | | - Milad Heydari
- Department of Agronomy and Plant Breeding, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Sergio Sorbo
- Ce.S.M.A, Microscopy Section, University of Naples Federico II, Napoli, Italy
| | - Adriana Basile
- Department of Biology, University of Naples "Federico II", Napoli, Italy
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13
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Piscopo M, Trifuoggi M, Scarano C, Gori C, Giarra A, Febbraio F. Relevance of arginine residues in Cu(II)-induced DNA breakage and Proteinase K resistance of H1 histones. Sci Rep 2018; 8:7414. [PMID: 29743544 PMCID: PMC5943286 DOI: 10.1038/s41598-018-25784-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 04/24/2018] [Indexed: 01/12/2023] Open
Abstract
This work analyzes the involvement of arginines in copper/H2O2-induced DNA breakage. Copper is a highly redox active metal which has been demonstrated to form compounds with arginines. For this aim we used mixtures of pGEM3 DNA plasmid and two types of H1 histones which differ only in their arginine content. The sperm H1 histone from the annelid worm Chaetopterus variopedatus (arginine content 12.6 mol% K/R ratio 2) and the somatic H1 histone from calf thymus (arginine content 1.8 mol% and K/R ratio 15). Copper/H2O2-induced DNA breakage was observed only in presence of sperm H1 histones, but it was more relevant for the native molecule than for the deguanidinated derivative (K/R ratio 14), in which 80% of arginine residues were converted to ornithine. Further, copper induced proteinase K resistance and increase of DNA binding affinity on native sperm H1 histones. These observations are consistent with a copper induced reorganization of the side-chains of arginine residues. Copper, instead, did not affect DNA binding affinity of somatic and deguanidinated H1 histones, which show similar K/R ratio and DNA binding mode. These results indicate that arginine residues could affect these H1 histones properties and provide new insights into copper toxicity mechanisms.
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Affiliation(s)
- Marina Piscopo
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, 80126, Napoli, Italy.
| | - Marco Trifuoggi
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, 80126, Napoli, Italy
| | - Carmela Scarano
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, 80126, Napoli, Italy
| | - Carla Gori
- CNR, Institute of Protein Biochemistry, 80131, Napoli, Italy
| | - Antonella Giarra
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, 80126, Napoli, Italy
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14
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Piscopo M, Notariale R, Rabbito D, Ausió J, Olanrewaju OS, Guerriero G. Mytilus galloprovincialis (Lamarck, 1819) spermatozoa: hsp70 expression and protamine-like protein property studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:12957-12966. [PMID: 29478169 DOI: 10.1007/s11356-018-1570-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 02/14/2018] [Indexed: 04/16/2023]
Abstract
In this work, we describe results of the reproductive health monitoring studies in Mytilus galloprovincialis following spermatozoa hsp70 expression and protamine-like protein properties. Mussels control (ctr) were released within cages for 30 days in three different marine sites near Naples (Campania, Italy): Bagnoli south (BAs) and Bagnoli north (BAn), both close to a disposal metallurgical factory and in Capo Miseno (CM). Studies of hsp70 gene expression carried out, by RT-qPCR, in mussel spermatozoa have shown varied expression levels, particularly 5, 13, and 15-fold more than ctr in CM, BAs, and BAn, respectively, indicating highest involvement of stress proteins in spermatozoa of mussels in Bagnoli. In order to evaluate the possible risk on Mytilus galloprovincialis sustainability loss, electrophoretic analyses were performed on protamine-like proteins (PL) of collected spermatozoa. The results showed that CM PL were apparently unaltered with respect to ctr PL, while BAs and BAn PL appeared in part in the form of peptides and in part as bands with low mobility. Further, CM and BAs PL showed, by electrophoretic mobility shift assay, a decrease in DNA binding ability and a change in their DNA binding mode. The results of this investigation show the usefulness of the study of alterations of spermatozoa hsp70 expression and protamine-like protein properties for eco-toxicological evaluation using Mytilus galloprovincialis as a bioindicator.
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Affiliation(s)
- Marina Piscopo
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cinthia 4, 80126, Naples, Italy.
| | - Rosaria Notariale
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cinthia 4, 80126, Naples, Italy
| | - Dea Rabbito
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cinthia 4, 80126, Naples, Italy
| | - Juan Ausió
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada
| | | | - Giulia Guerriero
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cinthia 4, 80126, Naples, Italy
- Interdepartmental Research Center for Environment (I.R.C.Env.), Università degli Studi di Napoli, Federico II, Naples, Italy
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15
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Abstract
In this chapter, a short evolutionary history and comparative analysis of sperm nuclear basic proteins (SNBPs) in marine invertebrates are presented based on some of the most recent publications in the field and building upon previously published reviews on the topic. Putative functions of SNBPs in sperm chromatin beyond DNA packaging will also be discussed with a primary focus on outstanding research questions.In somatic cells of all metazoans, DNA is packaged into tightly folded and dynamically accessible chromatin by canonical histones H2A, H2B, H3 and H4. Sperm chromatin of many animals, on the other hand, is organised by small yet structurally highly heterogeneous proteins called SNBPs, which can package sperm DNA on their own or in combination with each other. In extreme cases, sperm chromatin is condensed into a volume 6-10 times smaller than that of a somatic nucleus. SNBPs are classified into three major groups: H1 histone-type proteins (H-type SNBPs), protamines (P-type SNBPs) and protamine-like proteins (PL-type SNBPs). P-type SNBPs are mostly found in vertebrates, while PL-type SNBPs are ubiquitous in many invertebrate phyla. PL-type and P-type SNBPs evolved from histone H-type SNBP precursors through vertical evolution. Porifera, Ctenophora and Crustacea, Echinoidea (phylum Echinodermata) and Hydrozoa (phylum Hydrozoa) lack SNBPs. Echinoidea and Hydrozoa, however, evolved novel nucleosomal histone variants with specific roles during spermatogenesis. Seemingly, chromatin condensation plays a critical role in the silencing and tight packing of the genome within the sperm nucleus of most animals. However, the question of what necessitates the compaction of some sperm DNA beyond classical nucleosomal packaging while other sperm function using 'normal' histones remains unanswered to date.
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Affiliation(s)
- Anna Török
- Centre for Chromosome Biology, School of Natural Sciences, National University of Ireland Galway, Galway, Ireland.
| | - Sebastian G Gornik
- Centre for Chromosome Biology, School of Natural Sciences, National University of Ireland Galway, Galway, Ireland.
- Centre for Organismal Studies (COS), Heidelberg University, Heidelberg, Germany.
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16
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Kowalski A, Knaga S. Evidence on the stability of histone H1.a polymorphic variants during selection in quail. Arch Anim Breed 2017. [DOI: 10.5194/aab-60-145-2017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract. The goal of this work was to check whether selection for quantitative traits may cause a change in the histone H1 allelic complement and whether it can therefore be considered a modulator of histone H1-dependent chromatin functioning. For this purpose, a fluctuation of histone H1.a polymorphic variants was analyzed among a non-selected (control) quail line and the line selected for a high cholesterol content in the egg yolk. The histone H1.a was found to be polymorphic due to its differential migration rate in the AU-PAGE (acetic acid–urea polyacrylamide gel electrophoresis). Based on this, two H1.a isoforms (H1.a1 and H1.a2) that form three phenotypes (a1, a2 and a1a2) were distinguished in the quail lines tested. A comparably expressed (p > 0. 05) and low relative variable (coefficient of variation, CV < 0. 25) histone H1.a phenotypes were in agreement with Hardy–Weinberg equilibrium (HWE) in both the non-selected (χ2 = 1. 29, p = 0. 25) and selected (χ2 = 1. 9, p = 0. 16) quail line. The similarity among quail lines was assessed based on the equal distribution of histone H1.a phenotypes (χ2 = 1. 63, p = 0. 44) and alleles (χ2 = 0. 018, p = 0. 89) frequency in both quail lines tested. This indicates that selection does not affect the histone H1.a polymorphic variants. The stability of histone H1.a during selection might suggest that likely chromatin processes coupled to the selected trait are not linked to the activity of histone H1.a.
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17
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Vassalli QA, Caccavale F, Avagnano S, Murolo A, Guerriero G, Fucci L, Ausió J, Piscopo M. New insights into protamine-like component organization in Mytilus galloprovincialis' sperm chromatin. DNA Cell Biol 2014; 34:162-9. [PMID: 25494411 DOI: 10.1089/dna.2014.2631] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
We have analyzed Mytilus galloprovincialis' sperm chromatin, which consists of three protamine-like proteins, PL-II, PL-III, and PL-IV, in addition to a residual amount of the four core histones. We have probed the structure of this sperm chromatin through digestion with micrococcal nuclease (MNase) in combination with salt fractionation. Furthermore, we used the electrophoretic mobility shift assay to define DNA-binding mode of PL-II and PL-III and turbidimetric assays to determine their self-association ability in the presence of sodium phosphate. Although in literature it is reported that M. galloprovincialis' sperm chromatin lacks nucleosomal organization, our results obtained by MNase digestion suggest the existence of a likely unusual organization, in which there would be a more accessible location of PL-II/PL-IV when compared with PL-III and core histones. So, we hypothesize that in M. galloprovincialis' sperm chromatin organization DNA is wrapped around a PL-III protein core and core histones and PL-II and PL-IV are bound to the flanking DNA regions (similarly to somatic histone H1). Furthermore, we propose that PL's K/R ratio affects their DNA-binding mode and self-association ability as reported previously for somatic and sperm H1 histones.
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18
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Fioretti FM, Febbraio F, Carbone A, Branno M, Carratore V, Fucci L, Ausió J, Piscopo M. A sperm nuclear basic protein from the sperm of the marine worm Chaetopterus variopedatus with sequence similarity to the arginine-rich C-termini of chordate protamine-likes. DNA Cell Biol 2012; 31:1392-402. [PMID: 22536787 DOI: 10.1089/dna.2011.1547] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The sperm nuclear basic proteins (SNBPs) of the marine annelid worm Chaetopterus variopedatus have been shown previously to consist of a mixture of two SNBPs: histone H1-like (CvH1) and C.variopedatus protamine-like (CvPL). Here, we report the structural characterization of CvPL. The protein has a molecular weight of 8370.5 Da, a K/R ratio of 0.34, and a secondary structure, which are intermediate between those of protamine (P) and protamine-like (PL) SNBPs. The N-terminal sequence of CvPL shows a high extent of similarity with the arginine-rich C-terminal domain of chordate PL-type SNBPs. Furthermore, the protein binds to DNA in a similar fashion as vertebrate PLs and their own CvH1, but in a way that is different from that of the lysine-rich somatic H1 histones. We have experimentally determined the molar ratio CvH1:CvPL to be ∼1:6 in C. variopedatus sperm. Based on all of these, a model is proposed for the organization of the sperm chromatin by CvH1 and CvPL.
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