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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Journal of microbiology, epidemiology and immunobiology</journal-id><journal-title-group><journal-title xml:lang="en">Journal of microbiology, epidemiology and immunobiology</journal-title><trans-title-group xml:lang="ru"><trans-title>Журнал микробиологии, эпидемиологии и иммунобиологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0372-9311</issn><issn publication-format="electronic">2686-7613</issn><publisher><publisher-name xml:lang="en">Central Research Institute for Epidemiology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">413</article-id><article-id pub-id-type="doi">10.36233/0372-9311-2018-3-45-52</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL RESEARCHES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Arp GENE NUCLEOTID SEQUENCES VARIABILITY IN RUSSIAN TREPONEMA PALLIDUM ISOLATES</article-title><trans-title-group xml:lang="ru"><trans-title>ВАРИАБЕЛЬНОСТЬ НУКЛЕОТИДНЫХ ПОСЛЕДОВАТЕЛЬНОСТЕЙ ГЕНА arp У РОССИЙСКИХ ИЗОЛЯТОВ TREPONEMA PALLIDUM</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Obraztsova</surname><given-names>O. A.</given-names></name><name xml:lang="ru"><surname>Образцова</surname><given-names>О. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Aleinikova</surname><given-names>K. A.</given-names></name><name xml:lang="ru"><surname>Алейникова</surname><given-names>К. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kubanov</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Кубанов</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Deryabin</surname><given-names>D. G.</given-names></name><name xml:lang="ru"><surname>Дерябин</surname><given-names>Д. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>д.м.н., проф.,</p><p>107076, Москва, ул. Короленко, 3, стр. 6</p><p>(499)785-20-40</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">State Research Center of Dermatovenerology and Cosmetology</institution></aff><aff><institution xml:lang="ru">Государственный научный центр дерматовенерологии и косметологии</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2018-07-25" publication-format="electronic"><day>25</day><month>07</month><year>2018</year></pub-date><volume>95</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>45</fpage><lpage>52</lpage><history><date date-type="received" iso-8601-date="2019-08-24"><day>24</day><month>08</month><year>2019</year></date><date date-type="accepted" iso-8601-date="2019-08-24"><day>24</day><month>08</month><year>2019</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2018, Obraztsova O.A., Aleinikova K.A., Kubanov A.A., Deryabin D.G.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2018, Образцова О.А., Алейникова К.А., Кубанов А.А., Дерябин Д.Г.</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="en">Obraztsova O.A., Aleinikova K.A., Kubanov A.A., Deryabin D.G.</copyright-holder><copyright-holder xml:lang="ru">Образцова О.А., Алейникова К.А., Кубанов А.А., Дерябин Д.Г.</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/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://microbiol.crie.ru/jour/article/view/413">https://microbiol.crie.ru/jour/article/view/413</self-uri><abstract xml:lang="en"><p><bold>Aim</bold>. Analysis of the arp gene internal fragment nucleotide sequences variability in modern russian T. pallidum subsp. pallidum strains.<bold> Materials and methods.</bold> 57 T. pallidum isolates obtained from specialized dermatovenerologic clinics of the Central (Kaluga), the North Caucasus (Stavropol) and the Siberian (Tyva) regions in 2016 — 2017 were used in the study. The sequensing of the arp gene was performed using capillary electrophoresis technology. <bold>Results</bold>. A two-round amplification of the arp gene have been proposed, which ensures a correct reading of its internal region. Four variants of 60-nucleotide repeats in the internal arp fragment are described, which differing in 6, 8 and 15 — 17 codons compositions. Various combinations of these repeats, corresponding to the reference Nichols strain, globally distributed Street 14 genogroup, and the firstly described Stavropol regional variant are shown. <bold>Conclusion</bold>. The prospect of arp gene sequencing as a way to increase T. pallidum molecular typing efficiency is postulated.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Цель</bold>. Анализ вариабельности нуклеотидных последовательностей внутреннего фрагмента гена arp у современных российских штаммов T. pallidum subsp. pallidum.<bold> Материалы </bold><bold>и методы</bold>. В работе использованы 57 клинических изолятов, полученных в 2016 — 2017 гг. из специализированных медицинских учреждений дерматовенерологического профиля Центрального (Калужская область), Северо-Кавказского (Ставропольский край) и Сибирского (Республика Тыва) федеральных округов. Для исследования нуклеотидных последовательностей гена arp использована технология капиллярного секвенирования. <bold>Результаты</bold>. Предложена двухраундовая амплификация гена arp, обеспечивающая корректное прочтение его внутреннего участка. В составе данных участков описаны 4 варианта 60-нуклеотидных повторов, отличающихся по составу 6, 8 и 15 — 17 триплетов. Охарактеризованы различные комбинации подобных повторов, соответствующие референсному штамму Nichols, глобально распространенной геногруппе Street 14, а также и впервые обнаруженному региональному варианту Stavropol.<bold> Заключение</bold>. Продемонстрирована целесообразность секвенирования гена arp как инструмента повышения эффективности молекулярного типирования T. pallidum.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Treponema pallidum subsp. pallidum</kwd><kwd>molecular typing</kwd><kwd>arp gene</kwd><kwd>sequencing</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Treponema pallidum subsp. pallidum</kwd><kwd>молекулярное типирование</kwd><kwd>ген arp</kwd><kwd>секвенирование</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках Государственного задания ФГБУ «ГНЦДК» Мин - здрава России на плановый период 2018 — 2020 гг.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1. Белозоров А.П., Сокол О.А. Молекулярное типирование микроорганизма Treponema pallidum подвид pallidum. Дерматологiя та венерологiя. 2013, 4 (62): 5-11.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>2. 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