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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Problems of Virology</journal-id><journal-title-group><journal-title xml:lang="en">Problems of Virology</journal-title><trans-title-group xml:lang="ru"><trans-title>Вопросы вирусологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0507-4088</issn><issn publication-format="electronic">2411-2097</issn><publisher><publisher-name xml:lang="en">Central Research Institute for Epidemiology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">563</article-id><article-id pub-id-type="doi">10.36233/0507-4088-79</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL RESEARCHES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Construction of norovirus (Caliciviridae: Norovirus) virus-like particles containing VP1 of the Echovirus 30 (Picornaviridae: Enterovirus: Enterovirus B)</article-title><trans-title-group xml:lang="ru"><trans-title>Получение вирусоподобных частиц норовируса (Caliciviridae: Norovirus), содержащих белок VP1 энтеровируса Echovirus 30 (Picornaviridae: Enterovirus: Enterovirus B)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7049-6935</contrib-id><name-alternatives><name xml:lang="en"><surname>Novikov</surname><given-names>D. V.</given-names></name><name xml:lang="ru"><surname>Новиков</surname><given-names>Д. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p><bold>Dmitry V. Novikov,</bold> Ph.D. (Biol.), Associate Professor, Lead Researcher of the Immunochemistry Laboratory</p><p>603950, Nizhny Novgorod, Russia</p></bio><bio xml:lang="ru"><p><bold>Новиков Дмитрий Викторович,</bold> канд. биол. наук, доцент, ведущий научный сотрудник лаборатории иммунохимии</p><p>603950, Нижний Новгород, Россия</p></bio><email>novikov.dv75@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2441-6874</contrib-id><name-alternatives><name xml:lang="en"><surname>Melentev</surname><given-names>D. A.</given-names></name><name xml:lang="ru"><surname>Мелентьев</surname><given-names>Д. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>603950, Nizhny Novgorod, Russia</p></bio><bio xml:lang="ru"><p>603950, Нижний Новгород, Россия</p></bio><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8542-5723</contrib-id><name-alternatives><name xml:lang="en"><surname>Mokhonov</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Мохонов</surname><given-names>В. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>603950, Nizhny Novgorod, Russia</p></bio><bio xml:lang="ru"><p>603950, Нижний Новгород, Россия</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1033-7347</contrib-id><name-alternatives><name xml:lang="en"><surname>Kashnikov</surname><given-names>A. Yu.</given-names></name><name xml:lang="ru"><surname>Кашников</surname><given-names>А. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>603950, Nizhny Novgorod, Russia</p></bio><bio xml:lang="ru"><p>603950, Нижний Новгород, Россия</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3710-6648</contrib-id><name-alternatives><name xml:lang="en"><surname>Novikova</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Новикова</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>603950, Nizhny Novgorod, Russia</p></bio><bio xml:lang="ru"><p>603950, Нижний Новгород, Россия</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5905-5722</contrib-id><name-alternatives><name xml:lang="en"><surname>Lapin</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Лапин</surname><given-names>В. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>603950, Nizhny Novgorod, Russia</p></bio><bio xml:lang="ru"><p>603950, Нижний Новгород, Россия</p></bio><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9742-7646</contrib-id><name-alternatives><name xml:lang="en"><surname>Mokhonova</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Мохонова</surname><given-names>Е. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>603950, Nizhny Novgorod, Russia</p></bio><bio xml:lang="ru"><p>603950, Нижний Новгород, Россия</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2449-7213</contrib-id><name-alternatives><name xml:lang="en"><surname>Novikov</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Новиков</surname><given-names>В. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>603950, Nizhny Novgorod, Russia</p></bio><bio xml:lang="ru"><p>603950, Нижний Новгород, Россия</p></bio><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">FSBI «Academician I.N. Blokhina Nizhny Novgorod Scientific Research Institute of Epidemiology and Microbiology» of the Federal Service for Supervision of Consumer Rights Protection and Human Welfare (Rospotrebnadzor)</institution></aff><aff><institution xml:lang="ru">ФБУН «Нижегородский НИИ эпидемиологии и микробиологии им. академика И.Н. Блохиной» Федеральной службы по надзору в сфере защиты прав потребителей и благополучия человека (Роспотребнадзор)</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">FSAEI HE «National Research Lobachevsky State University of Nizhny Novgorod» of the Ministry of Education and Science of Russia</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Национальный исследовательский Нижегородский государственный университет им. Н.И. Лобачевского» Министерства науки и высшего образования (Минобрнауки) России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2021-11-04" publication-format="electronic"><day>04</day><month>11</month><year>2021</year></pub-date><volume>66</volume><issue>5</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>383</fpage><lpage>389</lpage><history><date date-type="received" iso-8601-date="2021-11-04"><day>04</day><month>11</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-11-04"><day>04</day><month>11</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2021, Novikov D.V., Melentev D.A., Mokhonov V.V., Kashnikov A.Y., Novikova N.A., Lapin V.A., Mokhonova E.V., Novikov V.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2021, Новиков Д.В., Мелентьев Д.А., Мохонов В.В., Кашников А.Ю., Новикова Н.А., Лапин В.А., Мохонова Е.В., Новиков В.В.</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="en">Novikov D.V., Melentev D.A., Mokhonov V.V., Kashnikov A.Y., Novikova N.A., Lapin V.A., Mokhonova E.V., Novikov V.V.</copyright-holder><copyright-holder xml:lang="ru">Новиков Д.В., Мелентьев Д.А., Мохонов В.В., Кашников А.Ю., Новикова Н.А., Лапин В.А., Мохонова Е.В., Новиков В.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://virusjour.crie.ru/jour/article/view/563">https://virusjour.crie.ru/jour/article/view/563</self-uri><abstract xml:lang="en"><p><bold>Introduction.</bold> Enterovirus (nonpolio) infection is widespread all over the world, registered as sporadic cases and large-scale outbreaks and can cause severe lesions such as serous meningitis. Epidemiological studies have shown that enterovirus (Picornaviridae; Enterovirus) variant Echovirus 30 (E30) is the most frequently detected variant in patients with enterovirus meningitis in the Russian Federation. However, no vaccines to prevent the disease caused by this pathogen have been developed so far. One of the promising modern trends in terms of creating vaccine preparations is the use of virus-like particles (VLPs), including chimeric ones containing the biological structures of viruses belonging to different species.</p><p><bold>The aim of this work</bold> was to obtain norovirus (Caliciviridae; Norovirus) VLPs displaying enterovirus Echovirus E30 full-length VP1 on the surface.</p><p><bold>Material and methods.</bold> The nucleotide sequences of VP1 protein of norovirus genotype GII.4 and VP1 E30 of genotype h circulating in Russia were used. The S<sub>N</sub>-VP1<sub>E30</sub> protein was constructed, in which the shell (S) and the hinge regions of the norovirus VP1 are fused into one molecule with the full-length VP1 of the E30 virus. The protein was expressed in E. coli, purified using affinity chromatography, and characterized by polyacrylamide gel electrophoresis (PAGE) and immunoblotting. VLPs were visualized by electron microscopy.</p><p><bold>Results.</bold> The S <sub>N</sub>-VP1<sub>E30</sub> protein expressed in E. coli as insoluble form, so the conditions for S<sub>N</sub>-VP1<sub>E30</sub> solublisation were defined. Sucrose has been shown to significantly increase the efficiency of renaturation. Electrophoretic mobility comparison of denatured and non-denatured S<sub>N</sub>-VP1<sub>E30</sub> demonstrated that most monomers form high molecular weight compounds. Electron microscopy showed that renatured S<sub>N</sub>-VP1<sub>E30</sub> spontaneously forms empty virus-like particles about 50 nm in diameter.</p><p><bold>Conclusion. </bold>Chimeric protein S<sub>N</sub>-VP1<sub>E30</sub> self-assemble into VLPs displaying the VP1 protein of E30 variant that is highly prevalent in Russia. Further immunological research is necessary to characterize VLPs potential for development of the vaccine for enteroviral meningitis prevention.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение. </bold>Энтеровирусная (неполио) инфекция имеет широкое распространение во всём мире, регистрируется в форме спорадической заболеваемости и масштабных вспышек и может быть причиной такого тяжёлого поражения, как серозный менингит. Эпидемиологические исследования показали, что на территории Российской Федерации у больных энтеровирусным менингитом наиболее часто выявляется вариант энтеровируса (ЭВ) (Picornaviridae; Enterovirus) Echovirus 30 (Е30). Однако вакцины для профилактики заболевания, вызванного этим возбудителем, до настоящего времени не разработаны. Одним из перспективных современных направлений в плане создания вакцинных препаратов является использование вирусоподобных частиц (ВпЧ), в т.ч. химерных – содержащих биологические структуры вирусов, принадлежащих к различным видам.</p><p><bold>Цель настоящей работы </bold>– получение ВпЧ норовируса (Caliciviridae; Norovirus), содержащих на своей поверхности белок VP1 Е30.</p><p><bold>Материал и методы. </bold>В работе использовали нуклеотидные последовательности генов белков VP1 норовируса генотипа GII.4 и VP1 вируса E30 генотипа h, циркулирующих на территории России. На их основе сконструирован белок S<sub>N</sub>-VP1<sub>E30</sub>, в котором оболочечный (S) и шарнирный (hinge) регионы VP1 норовируса слиты в одну молекулу с полноразмерным VP1 E30. Данный белок экспрессировали в E. coli, очищали методом аффинной хроматографии, после чего характеризовали с использованием электрофореза в полиакриламидном геле (ПААГ) и иммуноблоттинга. ВпЧ визуализировали методом электронной микроскопии.</p><p><bold>Результаты. </bold>Белок S<sub>N</sub>-VP1<sub>E30</sub> экспрессировался в E. coli в нерастворимой форме. Подбор условий для получения его растворимой формы показал, что использование высоких концентраций сахарозы существенно повышает эффективность ренатурации. При сравнении электрофоретической подвижности денатурированного и неденатурированного препаратов S<sub>N</sub>-VP1<sub>E30</sub> установлено, что большинство мономеров образуют соединения со значительной молекулярной массой. С помощью электронной микроскопии показано, что ренатурированный белок S<sub>N</sub>-VP1<sub>E30</sub> самопроизвольно формирует in vitro полые ВпЧ диаметром ~50 нм.</p><p><bold>Заключение. </bold>Показана возможность получения in vitro химерных ВпЧ норовируса, содержащих на своей поверхности белок VP1 циркулирующего на территории РФ варианта E30. Полученные частицы в дальнейшем могут быть использованы в разработке вакцинных препаратов для профилактики серозного менингита и других заболеваний, вызванных данным ЭВ.</p></trans-abstract><kwd-group xml:lang="en"><kwd>virus-like particles</kwd><kwd>norovirus VP1 protein</kwd><kwd>Echovirus 30 VP1 protein</kwd><kwd>chimeric proteins</kwd><kwd>vaccines</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>вирусоподобные частицы</kwd><kwd>белок VP1 норовируса</kwd><kwd>белок VP1 энтеровируса Echovirus 30</kwd><kwd>химерные белки</kwd><kwd>вакцины</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1. Brouwer L., Moreni G., Wolthers K.C., Pajkrt D. World-wide prevalence and genotype distribution of enteroviruses. Viruses. 2021; 13(3): 434. https://doi.org/10.3390/v13030434</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>2. Mao Q., Wang Y., Bian L., Xu M., Liang Z. 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