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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">2401</article-id><article-id pub-id-type="doi">10.17816/ecogen13110-15</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">Creation of new pichia pastoris strains for recombinant protein production</article-title><trans-title-group xml:lang="ru"><trans-title>Новые штаммы дрожжей pichia pastoris - продуценты гетерологичных белков</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Muzaev</surname><given-names>Dmitriy Mikhaylovich</given-names></name><name xml:lang="ru"><surname>Музаев</surname><given-names>Дмитрий Михайлович</given-names></name></name-alternatives><bio xml:lang="en"><p>master, Dept. Genetics and Biotechnology</p></bio><bio xml:lang="ru"><p>магистр, кафедра генетики и биотехнологии</p></bio><email>dmmuzaev@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Rumyantsev</surname><given-names>Andrey Mikhaylovich</given-names></name><name xml:lang="ru"><surname>Румянцев</surname><given-names>Андрей Михайлович</given-names></name></name-alternatives><bio xml:lang="en"><p>master, Dept. Genetics and Biotechnology</p></bio><bio xml:lang="ru"><p>магистр, кафедра генетики и биотехнологии</p></bio><email>rumyantsev-am@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sambuk</surname><given-names>Elena Viktorovna</given-names></name><name xml:lang="ru"><surname>Самбук</surname><given-names>Елена Викторовна</given-names></name></name-alternatives><bio xml:lang="en"><p>Dr. Sci. Biol, professor, Dept. Genetics and Biotechnology</p></bio><bio xml:lang="ru"><p>д. б. н., профессор, кафедра генетики и биотехнологии</p></bio><email>esambuk@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Padkina</surname><given-names>Marina Vladimirovna</given-names></name><name xml:lang="ru"><surname>Падкина</surname><given-names>Марина Владимировна</given-names></name></name-alternatives><bio xml:lang="en"><p>Dr. Sci. Biol, professor, Dept. Genetics and Biotechnology</p></bio><bio xml:lang="ru"><p>д. б. н., профессор, кафедра генетики и биотехнологии</p></bio><email>mpadkina@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Saint Petersburg State University</institution></aff><aff><institution xml:lang="ru">Санкт-Петербургский государственный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2015-03-15" publication-format="electronic"><day>15</day><month>03</month><year>2015</year></pub-date><volume>13</volume><issue>1</issue><issue-title xml:lang="en">VOL 13, NO1 (2015)</issue-title><issue-title xml:lang="ru">ТОМ 13, №1 (2015)</issue-title><fpage>10</fpage><lpage>15</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 ©; 2015, Muzaev D.M., Rumyantsev A.M., Sambuk E.V., Padkina M.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2015, Музаев Д.М., Румянцев А.М., Самбук Е.В., Падкина М.В.</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="en">Muzaev D.M., Rumyantsev A.M., Sambuk E.V., Padkina M.V.</copyright-holder><copyright-holder xml:lang="ru">Музаев Д.М., Румянцев А.М., Самбук Е.В., Падкина М.В.</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/2401">https://journals.eco-vector.com/ecolgenet/article/view/2401</self-uri><abstract xml:lang="en"><p>Pichia pastoris yeasts are widely used as a production platform for heterologous proteins. Wide biotechnological use of these yeasts is determined by simplicity of cultivation, cheap media and ability to provide posttranslational modifications. Basic approaches for enhancement of the recombinant protein outcome constitue increasing number of gene copies, which encode target protein, as well as co-expression of supporting factors for protein folding, processing and secretion. Development of relevant plasmids and auxotrophic strains is essential for solving these tasks. In this study, we report plasmids and strains collection, whichwill allow to conduct integration of multiple foreign genes in P. pastoris genome</p></abstract><trans-abstract xml:lang="ru"><p>Дрожжи Pichia pastoris используются для синтеза множества рекомбинантных белков. Широкое применение этого вида дрожжей в биотехнологии обусловлено относительной простотой культивирования, дешевизной используемых сред и возможностью осуществления посттрансляционных модификаций белков. Основными способами повышения выхода рекомбинантного белка являются увеличение числа копий генов, кодирующих исследуемый белок, а также коэкспрессия вспомогательных факторов, участвующих в фолдинге, созревании и секреции белка. Необходимым условием для применения этих подходов является расширение коллекции ауксотрофных мутантов. В ходе данной работы была создана коллекция плазмид и штаммов, позволяющая осуществлять множественную интеграцию чужеродных генов в геном P. pastoris.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Pichia pastoris</kwd><kwd>Pichia pastoris</kwd><kwd>recombinant proteins</kwd><kwd>genes expression</kwd><kwd>gene engineering</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рекомбинантные белки</kwd><kwd>экспрессия генов</kwd><kwd>генная инженерия</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Brierley R. A. (1998) Secretion of recombinant human insulin-like growth factor (IGF-1). 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