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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vavilov</journal-id><journal-title-group><journal-title xml:lang="ru">Вавиловский журнал генетики и селекции</journal-title><trans-title-group xml:lang="en"><trans-title>Vavilov Journal of Genetics and Breeding</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2500-3259</issn><publisher><publisher-name>Institute of Cytology and Genetics of Siberian Branch of the RAS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18699/VJ18.383</article-id><article-id custom-type="elpub" pub-id-type="custom">vavilov-1550</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МЕДИЦИНСКАЯ ГЕНЕТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MEDICAL GENETICS</subject></subj-group></article-categories><title-group><article-title>АНАЛИЗ ДОМЕННОЙ СПЕЦИФИЧНОСТИ ПРОТЕКТИВНОГО ХИМЕРНОГО АНТИТЕЛА ch14D5a ПРОТИВ ГЛИКОПРОТЕИНА Е ВИРУСА КЛЕЩЕВОГО ЭНЦЕФАЛИТА</article-title><trans-title-group xml:lang="en"><trans-title>ANALYSIS OF DOMAIN SPECIFICITY OF THE PROTECTIVE CHIMERIC ANTIBODY ch14D5a AGAINST GLYCOPROTEIN E OF TICK-BORNE ENCEPHALITIS VIRUS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Байков</surname><given-names>И. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Baykov</surname><given-names>I. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><email xlink:type="simple">ivan_baykov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Емельянова</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Emelyanova</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Соколова</surname><given-names>Л. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Sokolova</surname><given-names>L. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карелина</surname><given-names>Е. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Karelina</surname><given-names>E. M.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Матвеев</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Matveev</surname><given-names>A. L.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бабкин</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Babkin</surname><given-names>I. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хлусевич</surname><given-names>Я. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Khlusevich</surname><given-names>Ya. А.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Подгорный</surname><given-names>В. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Podgornyy</surname><given-names>V. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тикунова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tikunova</surname><given-names>N. V.</given-names></name></name-alternatives><email xlink:type="simple">tikunova@niboch.nsc.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Институт химической биологии и фундаментальной медицины Сибирского отделения Российской академии наук<country>Россия</country></aff><aff xml:lang="en">Institute of Сhemical Biology аnd Fundamental Medicine SB RAS<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Институт химической биологии и фундаментальной медицины Сибирского отделения Российской академии наук; Новосибирский национальный исследовательский государственный университет<country>Россия</country></aff><aff xml:lang="en">Institute of Сhemical Biology аnd Fundamental Medicine SB RAS; Novosibirsk State University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>04</day><month>07</month><year>2018</year></pub-date><volume>22</volume><issue>4</issue><fpage>459</fpage><lpage>467</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Байков И.К., Емельянова Л.А., Соколова Л.М., Карелина Е.М., Матвеев А.Л., Бабкин И.В., Хлусевич Я.А., Подгорный В.Ф., Тикунова Н.В., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Байков И.К., Емельянова Л.А., Соколова Л.М., Карелина Е.М., Матвеев А.Л., Бабкин И.В., Хлусевич Я.А., Подгорный В.Ф., Тикунова Н.В.</copyright-holder><copyright-holder xml:lang="en">Baykov I.K., Emelyanova L.A., Sokolova L.M., Karelina E.M., Matveev A.L., Babkin I.V., Khlusevich Y.А., Podgornyy V.F., Tikunova N.V.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vavilov.elpub.ru/jour/article/view/1550">https://vavilov.elpub.ru/jour/article/view/1550</self-uri><abstract><p>В настоящее время на основе протективного химерного антитела ch14D5a разрабатывается препарат для профилактики и терапии вируса клещевого энцефалита. Вместе с тем эпитоп, узнаваемый этим антителом на поверхности гликопротеина Е, не локализован. Для терапевтического использования антитела ch14D5a крайне желательно знать механизм действия этого антитела, в том числе узнаваемый им эпитоп. Целью данной работы было выявить домен гликопротеина Е, с которым связывается протективное антитело ch14D5a. Для этого с использованием бактериальной системы экспрессии было получе но четыре рекомбинантных варианта гликопротеина Е: 1) белок rE, содержащий домены D1, D2 и D3 гликопротеина Е;  2) белок rED1+2, содержащий домены D1 и D2; 3) белок rED3_301, представляющий собой домен D3; 4) белок rED3_294, включающий домен D3 и шарнирный участок, соединяющий домены D1 и D3. Белки rED3_294 и rED3_301 были получены в растворимой мономерной форме, что подтверждено гель-фильтрационной хроматографией. Белки rE и rED1+2 экстрагированы из телец включения. Методами вестерн-блот анализа и поверхностного плазмонного резонанса установлено, что протективное химерное антитело ch14D5a и его Fab-фрагмент связываются с доменом D3 и не связываются с доменами D1 и D2 гликопротеина Е вируса клещевого энцефалита. Поскольку антитела, узнающие эпитопы на поверхности домена D3, не склонны вызывать антителозависимое усиление инфекции по сравнению с антителами, направленными на домены D1 и D2, полученные данные подтверждают перспективность использования антитела ch14D5a при создании терапевтического препарата против вируса клещевого энцефалита.</p></abstract><trans-abstract xml:lang="en"><p>A drug for the prevention and therapy of tick-borne encephalitis virus is being developed on the basis of the protective chimeric antibody ch14D5a. At the same time, the epitope recognized by this antibody on the surface of glycoprotein E has not been localized yet. The aim of this work was to identify the domain of glycoprotein E, to which the protective antibody ch14D5a binds. As a result, four recombinant variants of glycoprotein E were generated using the bacterial expression system: (1) the rE protein containing the domains D1, D2, and D3 of glycoprotein E; (2) the rED1+2 protein containing domains D1 and D2; (3) the rED3_301 protein, which is domain D3 of glycoprotein E, and (4) the rED3_294 protein comprising domain D3 and a hinge region connecting domains D1 and D3. The rED3_294 and rED3_301 proteins were obtained in soluble monomeric form. The rE and rED1+2 proteins were extracted from the inclusion bodies of Escherichia coli. Using Western blot analysis and surface plasmon resonance analysis, it was demonstrated that the protective chimeric antibody ch14D5a and its Fab fragment bound specifically to domain D3 of glycoprotein E. Since the antibodies recognizing epitopes on the surface of domain D3 do not tend to cause antibody-dependent enhancement of the infection as compared to antibodies directed to domains D1 and D2, the data obtained confirm the promise of using the antibody ch14D5a in the development of a therapeutic preparation against the tick-borne encephalitis virus.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вирус клещевого энцефалита</kwd><kwd>гликопротеин Е</kwd><kwd>домен D3</kwd><kwd>антитело</kwd><kwd>рекомбинантный белок</kwd><kwd>поверхностный плазмонный резонанс</kwd><kwd>картирование эпитопа</kwd></kwd-group><kwd-group xml:lang="en"><kwd>tick-borne encephalitis virus</kwd><kwd>glycoprotein E</kwd><kwd>domain D3</kwd><kwd>antibody</kwd><kwd>recombinant protein</kwd><kwd>surface plasmon resonance</kwd><kwd>epitope mapping</kwd></kwd-group><funding-group xml:lang="en"><funding-statement>Russian Science Foundation, project 17-74-10146</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Barba-Spaeth G., Dejnirattisai W., Rouvinski A., Vaney M.C., Medits I., Sharma A., Simon-Lorière E., Sakuntabhai A., Cao-Lormeau V.M., Haouz A., England P., Stiasny K., Mongkolsapaya J., Heinz F.X., Screaton G.R., Rey F.A. 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