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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">Acta Naturae</journal-id><journal-title-group><journal-title xml:lang="en">Acta Naturae</journal-title><trans-title-group xml:lang="ru"><trans-title>Acta Naturae</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-8251</issn><publisher><publisher-name xml:lang="en">Acta Naturae Ltd</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">10463</article-id><article-id pub-id-type="doi">10.32607/20758251-2016-8-1-90-97</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Research Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экспериментальные 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">Binding of Protein Factor CTCF within Chicken Genome Alpha-Globin Locus</article-title><trans-title-group xml:lang="ru"><trans-title>Связывание белкового фактора CTCF в альфа-глобиновом локусе генома кур</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kotova</surname><given-names>E. S.</given-names></name><name xml:lang="ru"><surname>Котова</surname><given-names>E. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>lev@ibch.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Akopov</surname><given-names>S. B.</given-names></name><name xml:lang="ru"><surname>Акопов</surname><given-names>С. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>lev@ibch.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Didych</surname><given-names>D. A.</given-names></name><name xml:lang="ru"><surname>Дидыч</surname><given-names>Д. A.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>lev@ibch.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Petrova</surname><given-names>N. V.</given-names></name><name xml:lang="ru"><surname>Петрова</surname><given-names>Н. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>lev@ibch.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Iarovaia</surname><given-names>O. V.</given-names></name><name xml:lang="ru"><surname>Яровая</surname><given-names>O. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>lev@ibch.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Razin</surname><given-names>S. V.</given-names></name><name xml:lang="ru"><surname>Разин</surname><given-names>С. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>lev@ibch.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Nikolaev</surname><given-names>L. G.</given-names></name><name xml:lang="ru"><surname>Николаев</surname><given-names>Л. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>lev@ibch.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт биоорганической химии им. академиков М.М. Шемякина и Ю.А. Овчинникова РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Institute of Gene Biology, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт биологии гена РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2016-03-15" publication-format="electronic"><day>15</day><month>03</month><year>2016</year></pub-date><volume>8</volume><issue>1</issue><issue-title xml:lang="en">VOL 8, NO1 (2016)</issue-title><issue-title xml:lang="ru">ТОМ 8, №1 (2016)</issue-title><fpage>90</fpage><lpage>97</lpage><history><date date-type="received" iso-8601-date="2020-01-17"><day>17</day><month>01</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2016, Kotova E.S., Akopov S.B., Didych D.A., Petrova N.V., Iarovaia O.V., Razin S.V., Nikolaev L.G.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2016, Котова E.С., Акопов С.Б., Дидыч Д.A., Петрова Н.В., Яровая O.В., Разин С.В., Николаев Л.Г.</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="en">Kotova E.S., Akopov S.B., Didych D.A., Petrova N.V., Iarovaia O.V., Razin S.V., Nikolaev L.G.</copyright-holder><copyright-holder xml:lang="ru">Котова E.С., Акопов С.Б., Дидыч Д.A., Петрова Н.В., Яровая O.В., Разин С.В., Николаев Л.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://actanaturae.ru/2075-8251/article/view/10463">https://actanaturae.ru/2075-8251/article/view/10463</self-uri><abstract xml:lang="en"><p>A systematic search for DNA fragments containing potential CTCF transcription factor binding sites in the chicken alpha-globin domain and its <ext-link ext-link-type="uri" xlink:href="https://www.grignols.fr/Editor/scripts/common/spectrum/replica-rolex-jubilee-bracelet.html">replica rolex </ext-link>flanking regions was performed by means of the two-dimension electrophoretic mobility shift assay. For the alpha-globin domain fragments selected, the occupancy by the CTCF in erythroid and lymphoid chicken cells was tested by chromatin immunoprecipitation. <ext-link ext-link-type="uri" xlink:href="http://uppm.fkep.unpad.ac.id/wp-includes/Requests/Exception/HTTP/asian-rolex-replica.html">asian rolex replica</ext-link> Only one of 13 DNA fragments capable of CTCF binding in vitro was efficiently bound to this protein in vivo in erythroid cells, and somewhat less efficiently - in lymphoid cells. So, binding of CTCF to the DNA fragment in vitro in most cases does not mean that this fragment will be occupied by CTCF in the cell nucleus. Yet, CTCF binding in vivo, as a rule, is accompanied by the binding of the protein to this DNA region in vitro. <ext-link ext-link-type="uri" xlink:href="https://www.calypso.bg/design2/wp-content/uploads/sites/3/2013/05/replica-rolex-watches-ebay.html">replica rolex watches ebay</ext-link>
During the erythroid differentiation, no significant changes in CTCF binding to the DNA fragments studied were detected.</p></abstract><trans-abstract xml:lang="ru"><p>В альфа-глобиновом локусе генома кур и окружающих областях с использованием метода двумерного сдвига электрофоретической подвижности проведен систематический поиск фрагментов ДНК, содержащих потенциальные сайты связывания фактора транскрипции CTCF. При помощи иммунопреци питации хроматина проверена занятость белком CTCF таких сайтов в отобранных фрагментах в эритроидных и лимфоидных клетках. Лишь один из 13 фрагментов ДНК, связывающихся с CTCF in vitro, с высокой эффективностью взаимодействует с этим белком in vivo в эритроидных клетках и менее эффективно в лимфоидных. Таким образом, связывание CTCF с участком ДНК in vitro по большей части не означает, что этот участок будет занят CTCF в ядре клетки. Связывание же CTCF in vivo, как правило, сопровождается связыванием белка с данным участком in vitro. При эритроидной дифференцировке не происходит существенных изменений в связывании CTCF с исследованными фрагментами ДНК.</p></trans-abstract><kwd-group xml:lang="en"><kwd>globin genes</kwd><kwd>transcription factor CTCF</kwd><kwd>erythroid differentiation</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>гены глобинов</kwd><kwd>фактор транскрипции CTCF</kwd><kwd>эритроидная дифференцировка</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was supported by the Russian Leading Scientific Schools Programme (project NSH_1674.2012.4), Presidium of RAS Molecular and Cellular Biology Programme and RFBR (projects No. 10-04-01365, 10-04-01472, 14-04-00010).</funding-statement><funding-statement xml:lang="ru">Работа финансировалась программой поддержки ведущих научных школ России (проект НШ_1674.2012.4), программой Президиума РАН «Молекулярная и клеточная биология» и РФФИ (проекты № 10-04-01365, 10-04-01472, 14-04-00010).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>[1] Razin S. 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