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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Acta Naturae</journal-id><journal-title-group><journal-title xml:lang="en">Acta Naturae</journal-title><trans-title-group xml:lang="ru"><trans-title>Acta Naturae</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-8251</issn><publisher><publisher-name xml:lang="en">Acta Naturae Ltd</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">10872</article-id><article-id pub-id-type="doi">10.32607/20758251-2019-11-4-73-78</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Research Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экспериментальные статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Surface Charge Mapping on Virions and Virus-Like Particles of Helical Plant Viruses</article-title><trans-title-group xml:lang="ru"><trans-title>Картирование заряда на поверхности вирионов и вирусоподобных частиц вирусов растений со спиральной структурой</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Arkhipenko</surname><given-names>M. V.</given-names></name><name xml:lang="ru"><surname>Архипенко</surname><given-names>М. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>markhipenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Nikitin</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Никитин</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>markhipenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Baranov</surname><given-names>O. A.</given-names></name><name xml:lang="ru"><surname>Баранов</surname><given-names>О. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>markhipenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Evtushenko</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Евтушенко</surname><given-names>Е. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>markhipenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Atabekov</surname><given-names>J. G.</given-names></name><name xml:lang="ru"><surname>Атабеков</surname><given-names>И. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>markhipenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Karpova</surname><given-names>O. V.</given-names></name><name xml:lang="ru"><surname>Карпова</surname><given-names>О. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>markhipenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Department of Virology, Lomonosov Moscow State University</institution></aff><aff><institution xml:lang="ru">Московский государственный университет им. М.В. Ломоносова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2019-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2019</year></pub-date><volume>11</volume><issue>4</issue><issue-title xml:lang="en">VOL 11, NO4 (2019)</issue-title><issue-title xml:lang="ru">ТОМ 11, №4 (2019)</issue-title><fpage>73</fpage><lpage>78</lpage><history><date date-type="received" iso-8601-date="2020-01-28"><day>28</day><month>01</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2019, Arkhipenko M.V., Nikitin N.A., Baranov O.A., Evtushenko E.A., Atabekov J.G., Karpova O.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2019, Архипенко М.В., Никитин Н.А., Баранов О.А., Евтушенко Е.А., Атабеков И.Г., Карпова О.В.</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="en">Arkhipenko M.V., Nikitin N.A., Baranov O.A., Evtushenko E.A., Atabekov J.G., Karpova O.V.</copyright-holder><copyright-holder xml:lang="ru">Архипенко М.В., Никитин Н.А., Баранов О.А., Евтушенко Е.А., Атабеков И.Г., Карпова О.В.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://actanaturae.ru/2075-8251/article/view/10872">https://actanaturae.ru/2075-8251/article/view/10872</self-uri><abstract xml:lang="en"><p>Currently, the assembly of helical plant viruses is poorly understood. The viral assembly and infection may be affected by the charge distribution on the virion surface. However, only the total virion charge (isoelectric point) has been determined for most plant viruses. Here, we report on the first application of positively charged magnetic nanoparticles for mapping the surface charge distribution of helical plant viruses. The charge was demonstrated to be unevenly distributed on the surface of viruses belonging to different taxonomic groups, with the negative charge being predominantly located at one end of the virions. This charge distribution is mainly controlled by viral RNA.</p></abstract><trans-abstract xml:lang="ru"><p>Особенности формирования вирионов у вирусов растений со спиральной структурой изучены недостаточно. Определенный вклад в понимание молекулярных механизмов сборки вирусных частиц и развития инфекции может внести изучение распределения заряда на поверхности вирионов. До настоящего времени у большинства вирусов определен только общий заряд вириона (изоэлектрическая точка). С целью изучения распределения заряда на поверхности спиральных вирусов растений нами впервые были использованы положительно заряженные магнитные наночастицы. Показано, что заряд у исследуемых вирусов распределен неравномерно, а зона с повышенной плотностью отрицательного заряда находится на одном торце вириона вирусов, принадлежащих к различным таксономическим группам. В формировании этой зоны ключевую роль играет вирусная РНК.</p></trans-abstract><kwd-group xml:lang="en"><kwd>plant viruses</kwd><kwd>magnetic nanoparticles</kwd><kwd>surface charge mapping</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>вирусы растений</kwd><kwd>магнитные наночастицы</kwd><kwd>картирование поверхностного заряда</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was supported by a Russian Foundation for Basic Research grant No. 18-04-00028.</funding-statement><funding-statement xml:lang="ru">Работа поддержана грантом РФФИ № 18-04-00028.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Javidpour L., Lošdorfer Božič A., Naji A., Podgornik R. // J. Сhem. Phys. 2013. V. 139. № 15. P. 154709.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Losdorfer Božič A., Podgornik R. // J. Physics: Condensed Matter. 2017. V. 30. № 2. 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