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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">microbe</journal-id><journal-title-group><journal-title xml:lang="ru">Проблемы особо опасных инфекций</journal-title><trans-title-group xml:lang="en"><trans-title>Problems of Particularly Dangerous Infections</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0370-1069</issn><issn pub-type="epub">2658-719X</issn><publisher><publisher-name>Russian Research Anti-Plague Institute “Microbe”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21055/0370-1069-2012-4-44-46</article-id><article-id custom-type="elpub" pub-id-type="custom">microbe-870</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>МИКРОБИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MICROBIOLOGY</subject></subj-group></article-categories><title-group><article-title>Изучение генетической детерминированности твиназной активности холерных вибрионов</article-title><trans-title-group xml:lang="en"><trans-title>Analysis of Genetic Determination of 
                  Vibrio cholerae Tweenase Activity</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>Мазрухо</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Mazrukho</surname><given-names>A. B.</given-names></name></name-alternatives><email xlink:type="simple">plague@aaanet.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>Монахова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Monakhova</surname><given-names>E. V.</given-names></name></name-alternatives><email xlink:type="simple">plague@aaanet.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>Дуванова</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Duvanova</surname><given-names>O. V.</given-names></name></name-alternatives><email xlink:type="simple">plague@aaanet.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>Мишанькин</surname><given-names>Б. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Mishan’Kin</surname><given-names>B. N.</given-names></name></name-alternatives><email xlink:type="simple">plague@aaanet.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>Кругликов</surname><given-names>В. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Kruglikov</surname><given-names>V. D.</given-names></name></name-alternatives><email xlink:type="simple">plague@aaanet.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Ростовский-на-Дону научно-исследовательский противочумный институт</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Rostov-on-Don Research Anti-Plague Institute</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2012</year></pub-date><pub-date pub-type="epub"><day>20</day><month>08</month><year>2012</year></pub-date><volume>0</volume><issue>4(114)</issue><fpage>44</fpage><lpage>46</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мазрухо А.Б., Монахова Е.В., Дуванова О.В., Мишанькин Б.Н., Кругликов В.Д., 2012</copyright-statement><copyright-year>2012</copyright-year><copyright-holder xml:lang="ru">Мазрухо А.Б., Монахова Е.В., Дуванова О.В., Мишанькин Б.Н., Кругликов В.Д.</copyright-holder><copyright-holder xml:lang="en">Mazrukho A.B., Monakhova E.V., Duvanova O.V., Mishan’Kin B.N., Kruglikov V.D.</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://journal.microbe.ru/jour/article/view/870">https://journal.microbe.ru/jour/article/view/870</self-uri><abstract><p>Холерные вибрионы различных серогрупп изучены на наличие гена cef (CHO cell elongating factor) и активности по отношению к твинам и трибутирину с использованием ХДС-агара, приготовленного на основе панкреатического перевара пекарских дрожжей. Установлено, что все cef-позитивные штаммы гидролизуют твины 20, 40, 60, 80, 85 и все, кроме токсигенных V. cholerae O139, расщепляют трибутирин. Нетоксигенные cef-негативные штаммы О139 серогруппы, напротив, активны только по отношению к последнему. По-видимому, твиназная активность холерных вибрионов, отчасти, обусловлена Сef, а способность к гидролизу трибутирина – результат совокупного действия Сef и других ферментов. Показана эффективность применения ХДС-агара для определения данных признаков.</p></abstract><trans-abstract xml:lang="en"><p>Studied are Vibrio cholerae of different serogroups on the presence of cef (CHO cell elongating factor) gene and activity against tweens and tributyrin using HDS-agar, prepared on the basis of bakery yeast pancreatic digest. Determined is the fact that all cef-positive strains hydrolyze tweens 20, 40, 60, 80, 85 and all but toxigenic V.cholerae O139, hydrolyze tributyrin. In contrast, non-toxigenic cef-negative strains of O139 serogroup, are active only against the latter. Apparently, the tweenase activity of Vibrio cholerae is provided, partly, by Cef, and the ability to hydrolyze tributyrin is the result of combined activity of Cef and other ferments. Shown is the efficiency of HDS-agar application to determine these characteristics.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>холерный вибрион</kwd><kwd>твиназа</kwd><kwd>CHO cell elongating factor</kwd><kwd>Vibrio cholerae</kwd><kwd>tweenase</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">Дуванова О.В., Шиманюк Н.Я., Мишанькин Б.Н. Способность расщеплять твин 20 как дифференциальный тест для вибрионов О139 серовара различного происхождения. Клин. и лаб. диагн. 2000; 5:48–9.</mixed-citation><mixed-citation xml:lang="en">Duvanova O.V., Shimanyuk N.Ya., Mishan’kin B.N . 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