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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">vetpress</journal-id><journal-title-group><journal-title xml:lang="ru">Аграрная наука</journal-title><trans-title-group xml:lang="en"><trans-title>Agrarian science</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0869-8155</issn><issn pub-type="epub">2686-701X</issn><publisher><publisher-name>Редакция журнала "Аграрная наука"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32634/0869-8155-2025-400-11-15-21</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-3888</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>ВЕТЕРИНАРИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>VETERINARY MEDICINE</subject></subj-group></article-categories><title-group><article-title>Выделение и очистка рекомбинантного гексона бычьего аденовируса 3-го типа</article-title><trans-title-group xml:lang="en"><trans-title>Isolation and purification of recombinant bovine adenovirus type 3 hexone</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-0211-3334</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ахунова</surname><given-names>А. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Akhunova</surname><given-names>A. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алсу Рузалевна Ахунова - младший научный сотрудник</p><p>Научный городок — 2, Казань, 420075</p></bio><bio xml:lang="en"><p>Alsu Ruzalevna Akhunova - Junior Researcher</p><p>Nauchny gorodok — 2, Kazan, 42007</p></bio><email xlink:type="simple">aahunova@inbox.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2650-6459</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Галеева</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Galeeva</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антонина Глебовна Галеева - кандидат ветеринарных наук, ведущий научный сотрудник</p><p>Научный городок — 2, Казань, 420075</p><p>ул. им. К. Маркса, 65, Казань, 420015</p></bio><bio xml:lang="en"><p>Antonina Glebovna Galeeva - Candidate of Veterinary Sciences, Leading Researcher</p><p>Nauchny gorodok — 2, Kazan, 42007</p><p>65 K. Marx Str., Kazan, 420015</p></bio><email xlink:type="simple">antonina-95@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1717-0498</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яруллин</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Yarullin</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Айнур Ильнурович Яруллин - кандидат биологических наук, ведущий научный сотрудник</p><p>Научный городок — 2, Казань, 420075</p></bio><bio xml:lang="en"><p>Ainur Ilnurovich Yarullin - Candidate of Biological Sciences, Leading Reseacher</p><p>Nauchny gorodok — 2, Kazan, 42007</p></bio><email xlink:type="simple">abii@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8786-1310</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ефимова</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Efimova</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Марина Анатольевна Ефимова -  доктор биологических наук, ведущий научный сотрудник</p><p>Научный городок — 2, Казань, 420075</p><p>ул. им. К. Маркса, 65, Казань, 420015</p></bio><bio xml:lang="en"><p>Marina Anatolyevna Efimova - Doctor in Biological Sciences, Leading Researcher</p><p>Nauchny gorodok — 2, Kazan, 42007</p><p>65 K. Marx Str., Kazan, 420015</p></bio><email xlink:type="simple">marina-2004r@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7217-4083</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мингалеев</surname><given-names>Д. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Mingaleev</surname><given-names>D. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Данил Наильевич Мингалеев - доктор ветеринарных наук, доцент, директор; доктор ветеринарных наук, доцент</p><p>Научный городок — 2, Казань, 420075</p><p>ул. им. К. Маркса, 65, Казань, 420015</p></bio><bio xml:lang="en"><p>Danil Nailevich Mingaleev - Doctor of Veterinary Sciences, Associate Professor, Director; Doctor of Veterinary Sciences, Associate Рrofessor</p><p>Nauchny gorodok — 2, Kazan, 42007</p><p>65 K. Marx Str., Kazan, 420015</p></bio><email xlink:type="simple">damin80@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7210-7470</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Равилов</surname><given-names>Р. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Ravilov</surname><given-names>R. Kh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рустам Хаметович Равилов - доктор ветеринарных наук, член-корреспондент Академии наук Республики Татарстан, профессор кафедры </p><p>ул. им. К. Маркса, 65, Казань, 420015</p></bio><bio xml:lang="en"><p>Rustam Khamеtovich Ravilov - Doctor of Veterinary Sciences, Corresponding Member of the Academy of Sciences of the Republic of Tatarstan, Professor of the Department of Epizootology and Parasitology</p><p>65 K. Marx Str., Kazan, 420015</p></bio><email xlink:type="simple">rustam.ravilov@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральный центр токсикологической, радиационной и биологической безопасности</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Center for Toxicological, Radiation and Biological Safety</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральный центр токсикологической, радиационной и биологической безопасности; Казанский государственный аграрный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Center for Toxicological, Radiation and Biological Safety; Kazan State Agrarian University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Казанский государственный аграрный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan State Agrarian University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>19</day><month>11</month><year>2025</year></pub-date><volume>0</volume><issue>11</issue><elocation-id>15–21</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Ахунова А.Р., Галеева А.Г., Яруллин А.И., Ефимова М.А., Мингалеев Д.Н., Равилов Р.Х., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Ахунова А.Р., Галеева А.Г., Яруллин А.И., Ефимова М.А., Мингалеев Д.Н., Равилов Р.Х.</copyright-holder><copyright-holder xml:lang="en">Akhunova A.R., Galeeva A.G., Yarullin A.I., Efimova M.A., Mingaleev D.N., Ravilov R.K.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" 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://www.vetpress.ru/jour/article/view/3888">https://www.vetpress.ru/jour/article/view/3888</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Аденовирусы (Mastadenovirus, Adenoviridae) являются одним из превалирующих этиологических агентов комплекса респираторно-кишечных заболеваний КРС, занимая до 70% в нозологической структуре заболеваемости молодняка. Диагностика аденовирусной инфекции затруднена в связи с разнообразием серотипов. Наиболее широкое распространение в практике получил иммуноферментный анализ. Повысить чувствительность и специфичность метода возможно путем комплектации тест-систем очищенными рекомбинантными антигенами.</p></sec><sec><title>Методы</title><p>Методы. В работе применяли методы биоинформационного анализа и генной инженерии. Клонирование синтезированной вставки, кодирующей фрагмент гена гексона, осуществляли в вектор pET-22b(+), экспрессию проводили в организме E. coli. Для подбора условий очистки применяли классические методы дезинтеграции клеток в сочетании с металлхелатной аффинной хроматографией.</p></sec><sec><title>Результаты</title><p>Результаты. С помощью классических методов биоинформационного анализа нуклеотидной последовательности штамма WBR-1 бычьего аденовируса 3-го типа была разработана эпитопная структура усеченного рекомбинантного гексона молекулярной массой 17,0 кДа, белок с гексагистидиновым тегом был синтезирован в прокариотической системе экспрессии штаммом-продуцентом E. coli BL21(DE3)pLysS/pET-22b(+)-Hexon в виде телец включения. Были подобраны оптимальные условия культивирования штамма и проведения металлхелатной хроматографической очистки на Ni-NTA сефарозе в денатурирующих условиях, что позволило получить электрофоретически гомогенный продукт. Были оптимизированы условия постановки непрямого иммуноферментного анализа на основе рекомбинантного гексона. Описанный в работе методический подход может быть применен для получения рекомбинантного гексона в качестве антигена для получения поликлональных или моноклональных антител против аденовируса 3-го типа, что более эффективно и экономично по сравнению с антигеном нативного вируса, культивируемого в клетках млекопитающих</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Relevance</title><p>Relevance. Adenoviruses (Mastadenovirus, Adenoviridae) are among the prevailing etiologic agents of the complex of respiratory and intestinal diseases of cattle, accounting for up to 70% of the nosological structure of morbidity in young animals. Diagnosis of adenovirus infection is difficult due to the diversity of serotypes, the most widely used in practice is enzyme immunoassay. It is possible to increase the sensitivity and specificity of the method by equipping test systems with purified recombinant antigens.</p></sec><sec><title>Methods</title><p>Methods. The work used methods of bioinformatics analysis and genetic engineering. Cloning of the synthesized insert encoding a fragment of the hexon gene was carried out in the pET-22b(+) vector, expression was carried out in E. coli organism. Classical methods of cell disintegration in combination with metal-chelate affinity chromatography were used to select purification conditions.</p></sec><sec><title>Results</title><p>Results. Using classical methods of bioinformatics analysis of the nucleotide sequence of the WBR-1 strain of bovine adenovirus type 3, the epitope structure of the truncated recombinant hexon with a molecular weight of 17.0 kDa was developed. The protein with a hexahistidine tag was synthesized in a prokaryotic expression system by the producer strain E. coli BL21(DE3)pLysS/pET-22b(+)-Hexon in the form of inclusion bodies. Optimal conditions for culturing the strain and performing metal-chelate chromatographic purification on Ni-NTA Sepharose under denaturing conditions were selected, which made it possible to obtain an electrophoretically homogeneous product. Conditions for setting up an indirect enzyme immunoassay based on recombinant hexon were optimized. The methodological approach described in the work can be applied to obtain recombinant hexon as an antigen for obtaining polyclonal or monoclonal antibodies against adenovirus type 3, which is more effective and economical compared to the antigen of the native virus cultured in mammalian cells. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>аденовирус крупного рогатого скота</kwd><kwd>гексон</kwd><kwd>рекомбинантный белок</kwd><kwd>металлхелатная хроматография</kwd><kwd>иммуноферментный анализ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>bovine adenovirus</kwd><kwd>hexon</kwd><kwd>recombinant protein</kwd><kwd>metal chelate chromatography</kwd><kwd>enzyme-linked immunosorbent assay</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Jesse S.T. et al. 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