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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">dan-445</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>БИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOLOGY</subject></subj-group></article-categories><title-group><article-title>СОЗДАНИЕ ШТАММА-ПРОДУЦЕНТА ХИМЕРНОГО БЕЛКА, СОСТОЯЩЕГО ИЗ ЧЕЛОВЕЧЕСКОГО АННЕКСИНА И БАКТЕРИАЛЬНОЙ АДЕНОЗИНДЕЗАМИНАЗЫ</article-title><trans-title-group xml:lang="en"><trans-title>CONSTRUCTION OF STRAIN-PRODUCER OF CHEMERIC PROTEIN CONTAINING HUMAN ANNEXIN AND BACTERIAL ADENOSINE DEAMINASE</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>Булатовский</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Bulatovski</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>мл. науч. сотрудник</p></bio><bio xml:lang="en"><p>Junior researcher</p></bio><email xlink:type="simple">a.bulatovski@yandex.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>Квач</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kvach</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. биол. наук, вед. науч. сотудник</p></bio><bio xml:lang="en"><p>Ph. D. (Biology), Leading researcher</p></bio><email xlink:type="simple">sergkvach@yahoo.com</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>Ерошевская</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Eroshevskaya</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. биол. наук, вед. науч. сотудник</p></bio><bio xml:lang="en"><p>Ph. D. (Biology), Leading researcher</p></bio><email xlink:type="simple">ljarosha@yandex.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>Зинченко</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Zinchenko</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>член-корреспондент, д-р биол. наук, профессор, заведующий лабораторией</p></bio><bio xml:lang="en"><p>Corresponding Member, D. Sc. (Biology), Professor, Head of the Laboratory</p></bio><email xlink:type="simple">zinch@mbio.bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт микробиологии Национальной академии наук Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Microbiology of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>05</day><month>10</month><year>2017</year></pub-date><volume>61</volume><issue>4</issue><fpage>89</fpage><lpage>95</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Булатовский А.Б., Квач С.В., Ерошевская Л.А., Зинченко А.И., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Булатовский А.Б., Квач С.В., Ерошевская Л.А., Зинченко А.И.</copyright-holder><copyright-holder xml:lang="en">Bulatovski A.B., Kvach S.V., Eroshevskaya L.A., Zinchenko A.I.</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://doklady.belnauka.by/jour/article/view/445">https://doklady.belnauka.by/jour/article/view/445</self-uri><abstract><p>Злокачественные опухоли обладают механизмами, позволяющими уклоняться от разрушения иммунной системой организма-опухоленосителя. Одним из таких механизмов является формирование в опухоли под влиянием внеклеточного аденозина иммуносупрессирующего микроокружения. Ранее нами была предложена идея устранения защиты рака от хозяйского клеточного иммунитета с помощью аденозиндезаминазы, слитой с аннексином-А5. В результате проведенного исследования впервые сконструирован штамм Escherichia coli, продуцирующий химерный белок, молекула которого состоит из человеческого аннексина-А5 и гомологичной аденозиндезаминазы. Продуцирующая способность полученного штамма-продуцента в отношении химерного белка составляет 18 мг/л культуральной жидкости. Наработано 13 мг высокоочищенного химерного белка, обладающего аденозиндезаминазной активностью. При этом продуцирующая способность этого штамма в отношении аденозиндезаминазы составила 7,1 мкмоль/мин/мл культуральной жидкости. Полученный химерный белок предназначен для изучения в качестве перспективного противоопухолевого средства.</p><sec><title> </title><p> </p></sec><sec><title> </title><p> </p></sec></abstract><trans-abstract xml:lang="en"><p>Malignant tumors possess the mechanisms allowing one to evade the degradation of tumor-carrier by the immune system. One of the mechanisms is the formation of a tumor immunosuppressing microenvironment acted upon by extracellular adenosine. Earlier, we proposed the idea to eliminate a cancer protection barrier from the host cell immunity using adenosine deaminase fused with annexin A5. The conducted study resulted in the ﬁrst development of the strain Escherichia coli producing the chimeric protein structurally composed of human annexin A5 and homologous adenosine deaminase. The generating capacity of the obtained microbial strain with respect to chimeric protein was 18 mg/l of culture ﬂuid. 13 mg of highly puriﬁed chimeric protein showing the adenosine deaminase activity was produced. The adenosine deaminase productivity of the strain equaled 7.1 µmol/min/ml of culture ﬂuid. The obtained chimeric protein is intended for a further investigation as a promising cancerostatic agent.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>химерный белок</kwd><kwd>человеческий аннексин</kwd><kwd>аденозиндезаминаза</kwd><kwd>Escherichia coli</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fusion protein</kwd><kwd>human annexin</kwd><kwd>adenosine deaminase</kwd><kwd>Escherichia coli</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">Суконко, О. Г. Состояние и перспективы развития онкологии в Республике Беларусь / О. Г. 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