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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">antibiotics</journal-id><journal-title-group><journal-title xml:lang="ru">Антибиотики и Химиотерапия</journal-title><trans-title-group xml:lang="en"><trans-title>Antibiot Khimioter = Antibiotics and Chemotherapy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0235-2990</issn><publisher><publisher-name>ООО «Издательство ОКИ»</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">antibiotics-14</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL PAPERS</subject></subj-group></article-categories><title-group><article-title>Изучение антибактериальной активности и энергии связывания с пептидным лигандом гибридным антибиотиков ванкомицин-азитромицин и эремомицин-азитромицин</article-title><trans-title-group xml:lang="en"><trans-title>Study of Antibacterial Activity and Energy of Formation of Peptide Ligand Complexes With Hybrid Antibiotics Vancomycin-Azithromycin and Eremomycin-Azithromycin</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>Быков</surname><given-names>Е. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Bykov</surname><given-names>E. E.</given-names></name></name-alternatives><email xlink:type="simple">chulis@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>Мирчинк</surname><given-names>Е. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Mirchink</surname><given-names>E. P.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Исакова</surname><given-names>Е. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Isakova</surname><given-names>E. B.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Бычкова</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Bychkova</surname><given-names>E. N.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Олсуфьева</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Olsufyeva</surname><given-names>E. N.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Тевяшова</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Tevyashova</surname><given-names>A. N.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>НИИ по изысканию новых антибиотиков им. Г.Ф. Гаузе</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Gause Institute of New Antibiotics</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>05</day><month>05</month><year>2020</year></pub-date><volume>62</volume><issue>3-4</issue><fpage>10</fpage><lpage>17</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ООО «Издательство ОКИ», 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">ООО «Издательство ОКИ»</copyright-holder><copyright-holder xml:lang="en">ООО «Издательство ОКИ»</copyright-holder><license xlink:href="https://www.antibiotics-chemotherapy.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.antibiotics-chemotherapy.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.antibiotics-chemotherapy.ru/jour/article/view/14">https://www.antibiotics-chemotherapy.ru/jour/article/view/14</self-uri><abstract><p>Изучена антибактериальная активность гибридных антибиотиков ванкомицин-азитромицин (С11, С12 - карбонат) и эремомицин-азитромицин (С11, С12 - карбонат) и проведены квантово-химические расчёты энергии их взаимодействия с пептидным лигандом - модельным трипептидом a, ε-di-Ac-L-Lys-D-Ala-D-Ala полуэмпирическим методом PM6. Получены данные о геометрических параметрах комплексов антибиотиков с лигандом, энергиях их образования и влиянии состояния протонирования группы NHCH3. Выявлена корреляция между энергией образования комплекса гибридных антибиотиков с лигандом и антибактериальной активностью в отношении грамположительных бактерий.</p></abstract><trans-abstract xml:lang="en"><p>Antibacterial activity of hybrid antibiotics vancomycin-azithromycin (C11, C12-carbonate) and eremomycin-azitromycin (C11, C12-carbonate) was evaluated. Quantum chemical calculations of complexes of hybrid antibiotics with a model tripeptide ligand a, ε-di-Ac-L-Lys-D-Ala-D-Ala by the semi empirical PM6 method provided data on geometrical parameters of complexes along with the energy of their formation and the influence of protonation of the NHCH3 group. A correlation between the energy of formation of antibiotics-ligand complexes and antibacterial activity of hybrid antibiotics against Gram-positive bacterial strains was found.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ванкомицин</kwd><kwd>эремомицин</kwd><kwd>азитромицин</kwd><kwd>гибридные антибиотики</kwd><kwd>антибактериальная активность</kwd><kwd>комплекс антибиотик-лиганд</kwd><kwd>квантово-химическое изучение</kwd><kwd>полуэмпирический метод PM6</kwd></kwd-group><kwd-group xml:lang="en"><kwd>vancomycin</kwd><kwd>eremomycin</kwd><kwd>azithromycin</kwd><kwd>hybrid antibiotics</kwd><kwd>antibacterial activity</kwd><kwd>antibiotic</kwd><kwd>ligand complex</kwd><kwd>quantum chemical calculations</kwd><kwd>semi empirical method PM6</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">Svetitsky S., Leibovich L., Paul M. 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