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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Ecological genetics</journal-id><journal-title-group><journal-title xml:lang="en">Ecological genetics</journal-title><trans-title-group xml:lang="ru"><trans-title>Экологическая генетика</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1811-0932</issn><issn publication-format="electronic">2411-9202</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">2459</article-id><article-id pub-id-type="doi">10.17816/ecogen11258-72</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Biosynthesis of hexaand pentameric chitooligosaccharides using n-acetylglucoseaminyl transferase from rhizobial bacteria</article-title><trans-title-group xml:lang="ru"><trans-title>Биосинтез гекса- и пентамерных хитоолигосахаридов с помощью n-ацетилглюкозаминилтрансферазы ризобиальных бактерий</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Leppyanen</surname><given-names>Irina Viktorovna</given-names></name><name xml:lang="ru"><surname>Леппянен</surname><given-names>Ирина Викторовна</given-names></name></name-alternatives><bio xml:lang="en"><p>scientist</p></bio><bio xml:lang="ru"><p>младший научный сотрудник, лаборатория молекулярной и клеточной биологии.</p></bio><email>leppyanen_irina@rambler.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Artamonova</surname><given-names>Tatyana Olegovna</given-names></name><name xml:lang="ru"><surname>Артамонова</surname><given-names>Татьяна Олеговна</given-names></name></name-alternatives><bio xml:lang="en"><p>scientist</p></bio><bio xml:lang="ru"><p>научный сотрудник</p></bio><email>artamonova@nanobio.spbstu.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lopatin</surname><given-names>Sergey Aleksandrovich</given-names></name><name xml:lang="ru"><surname>Лопатин</surname><given-names>Сергей Александрович</given-names></name></name-alternatives><bio xml:lang="en"><p>PhD</p></bio><bio xml:lang="ru"><p>к. х. н., старший научный сотрудник</p></bio><email>lopatin@biengi.ac.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Varlamov</surname><given-names>Valeriy Petrovich</given-names></name><name xml:lang="ru"><surname>Варламов</surname><given-names>Валерий Петрович</given-names></name></name-alternatives><bio xml:lang="en"><p>doctor of science</p></bio><bio xml:lang="ru"><p>д. х. н., заведующий лабораторией, профессор</p></bio><email>varlamov@biengi.ac.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tikhonovich</surname><given-names>Igor Anatolyevich</given-names></name><name xml:lang="ru"><surname>Тихонович</surname><given-names>Игорь Анатольевич</given-names></name></name-alternatives><bio xml:lang="en"><p>doctor of science, professor, academician of RAAS</p></bio><bio xml:lang="ru"><p>д. б. н., профессор, академик РАСХН</p></bio><email>contact@arriam.spb.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Dolgikh</surname><given-names>Yelena Anatolyevna</given-names></name><name xml:lang="ru"><surname>Долгих</surname><given-names>Елена Анатольевна</given-names></name></name-alternatives><bio xml:lang="en"><p>PhD, group leader</p></bio><bio xml:lang="ru"><p>к. б. н., ведущий научный сотрудник, лаборатория молекулярной и клеточной биологии</p></bio><email>dol2helen@yahoo.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">All-Russia Research Institute for Agricultural Microbiology</institution></aff><aff><institution xml:lang="ru">ГНУ ВНИИСХМ</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">St.Petersburg State Polytechnical University</institution></aff><aff><institution xml:lang="ru">Санкт-Петербургский государственный политехнический университет</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Center “Bioengineering” of RAS</institution></aff><aff><institution xml:lang="ru">Учреждение Российской академии наук Центр «Биоинженерия» РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2013-06-15" publication-format="electronic"><day>15</day><month>06</month><year>2013</year></pub-date><volume>11</volume><issue>2</issue><issue-title xml:lang="en">VOL 11, NO2 (2013)</issue-title><issue-title xml:lang="ru">ТОМ 11, №2 (2013)</issue-title><fpage>58</fpage><lpage>72</lpage><history><date date-type="received" iso-8601-date="2016-03-30"><day>30</day><month>03</month><year>2016</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2013, Leppyanen I.V., Artamonova T.O., Lopatin S.A., Varlamov V.P., Tikhonovich I.A., Dolgikh Y.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2013, Леппянен И.В., Артамонова Т.О., Лопатин С.А., Варламов В.П., Тихонович И.А., Долгих Е.А.</copyright-statement><copyright-year>2013</copyright-year><copyright-holder xml:lang="en">Leppyanen I.V., Artamonova T.O., Lopatin S.A., Varlamov V.P., Tikhonovich I.A., Dolgikh Y.A.</copyright-holder><copyright-holder xml:lang="ru">Леппянен И.В., Артамонова Т.О., Лопатин С.А., Варламов В.П., Тихонович И.А., Долгих Е.А.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.eco-vector.com/ecolgenet/article/view/2459">https://journals.eco-vector.com/ecolgenet/article/view/2459</self-uri><abstract xml:lang="en"><p>Chitooligosaccharides find wide application that determines considerable interest in their use. Enzymatic synthesis of hexa-N-acetylchitohexaose and penta-N-acetylchitopentaose using N-acetyl-glucoseaminyl transferase enzyme possessing unique features from rhizobial bacteria Rhizobium sp. GRH2 and M. loti has been performed in E. coli cells. Cultivation of bacteria E. coli expressing the appropriate recombinant enzyme resulted in synthesis of significant amounts of desired chitooligosaccharides (milligrams per liter). Analysis of synthesized chitooligosacchairdes by methods of high performance liquid chromatography and mass-spectrometry confirmed the conformity of the synthesized compounds to standards.</p></abstract><trans-abstract xml:lang="ru"><p>Хитоолигосахариды находят широкое практическое применение, что определяет интерес к изучению возможности биосинтеза этих соединений. В данной работе осуществлен синтез гекса-N-ацетилхитогексаозы и пента-N-ацетилхитопентаозы в клетках E. coli с использованием уникального фермента N-ацетилглюкозаминилтрансферазы клубеньковых бактерий Rhizobium sp. GRH2 и M. loti. При культивировании бактерий E. coli, экспрессирующих рекомбинантные ферменты, в присутствии субстрата N-ацетилглюкозамина, уровень синтеза хитоолигосахаридов достигал нескольких миллиграмм на литр жидкой культуры. Анализ полученных соединений с помощью методов ВЭЖХ и масс-спектрометрии подтвердил их соответствие стандартам.</p></trans-abstract><kwd-group xml:lang="en"><kwd>chitooligosaccharides</kwd><kwd>enzymatic synthesis</kwd><kwd>N-acetyl-glucoseaminyl transferase</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>хитоолигосахариды</kwd><kwd>ферментативный синтез</kwd><kwd>N-ацетилглюкозаминилтрансфераза</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Кочетков Н. К., 2000. 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