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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">vestnik-bio-msu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Московского университета. Серия 16. Биология</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik Moskovskogo universiteta. Seriya 16. Biologiya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0137-0952</issn><publisher><publisher-name>Lomonosov Moscow State University,  School of Biology</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vestnik-bio-msu-327</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>Методы</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Methods</subject></subj-group></article-categories><title-group><article-title>ИЗМЕНЕНИЕ КОНФОРМАЦИИ ЛИНКЕРНОЙ ДНК ПРИ СВЯЗЫВАНИИ ГИСТОНА Н1.5 C НУКЛЕОСОМОЙ: ФЛУОРЕСЦЕНТНАЯ МИКРОСКОПИЯ ОДИНОЧНЫХ КОМПЛЕКСОВ</article-title><trans-title-group xml:lang="en"><trans-title>CHANGE IN CONFORMATION OF LINKER DNA UPON BINDING OF HISTONE H1.5 TO NUCLEOSOME: FLUORESCENT MICROSCOPY OF SINGLE COMPLEXES</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>Любителев</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lyubitelev</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант кафедры биоинженерии биологического факультета МГУ. Тел.: 8-495-938-22-91</p></bio><email xlink:type="simple">varanus-salvator@yandex.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>Кудряшова</surname><given-names>К. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudryashova</surname><given-names>K. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. биол. наук, мл. науч. сотр. ИБХ РАН, вед. инженер кафедры биоинженерии биологического факультета МГУ. Тел.: 8-495-336-64-55</p></bio><email xlink:type="simple">rekamoskva@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Михайлова</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhaylova</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент кафедры биоинженерии биологического факультета МГУ. Тел.: 8-495-938-22-91</p></bio><email xlink:type="simple">mashkuna@yandex.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>Малюченко</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Malyuchenko</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. биол. наук, доцент кафедры биоинженерии биологического факультета МГУ. Тел.: 8-495-938-00-05</p></bio><email xlink:type="simple">mal_nat@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>Чертков</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chertkov</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>вед. инженер кафедры биоинженерии биологического факультета МГУ. Тел.: 8-495-938-22-91</p></bio><email xlink:type="simple">o_chertkov@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Студитский</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Studitsky</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>докт. биол. наук, гл. науч. сотр. кафедры биоинженерии биологического факультета МГУ; руководитель лаборатории эпигенетики рака Центра исследований рака Фокс Чейз (Филадельфия, США). Тел.: 8-495-938-22-91</p></bio><email xlink:type="simple">vasily.studitsky@fccc.edu</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Феофанов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Feofanov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>докт. биол. наук, руководитель лаборатории оптической микроскопии и спектроскопии биомолекул ИБХ РАН, проф. кафедры биоинженерии биологического факультета МГУ. Тел.: 8-495-336-64-55</p></bio><email xlink:type="simple">avfeofanov@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кирпичников</surname><given-names>М. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Kirpichnikov</surname><given-names>M. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>академик РАН, проф., докт. биол. наук, декан, зав. кафедрой биоинженерии биологического факультета МГУ, заведующий отделом биоинженерии ИБХ РАН. Тел.: 8-495-939-27-76</p></bio><email xlink:type="simple">kirpichnikov@inbox.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Кафедра биоинженерии, биологический факультет, Московский государственный университет имени М.В. Ломоносова; Россия, 119234, г. Москва, Ленинские горы, д. 1, стр. 12</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bioengineering Department, School of Biology, Lomonosov Moscow State University, Leninskiye Gory 1–12, Moscow, 119234, Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Кафедра биоинженерии, биологический факультет, Московский государственный университет имени М.В. Ломоносова; Россия, 119234, г. Москва, Ленинские горы, д. 1, стр. 12&#13;
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Институт биоорганической химии им. академиков М.М. Шемякина и Ю.А. Овчинникова, РАН; Россия, 117997, Москва, ул. Миклухо-Маклая, д. 16/10</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bioengineering Department, School of Biology, Lomonosov Moscow State University, Leninskiye Gory 1–12, Moscow, 119234, Russia;&#13;
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Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya ul. 16/10, 117997, Moscow, Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Кафедра биоинженерии, биологический факультет, Московский государственный университет имени М.В. Ломоносова; Россия, 119234, г. Москва, Ленинские горы, д. 1, стр. 12&#13;
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лаборатория эпигенетики рака, Центр исследований рака Фокс Чейз; США, штат Пенсильвания, 19111, г. Филадельфия, просп. Коттмана, д. 333</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bioengineering Department, School of Biology, Lomonosov Moscow State University, Leninskiye Gory 1–12, Moscow, 119234, Russia&#13;
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Cancer Epigenetics Program Team, Fox Chase Cancer Center; Cottman Avenue 333, Philadelphia, PA 19111, USA</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Кафедра биоинженерии, биологический факультет, Московский государственный университет имени М.В. Ломоносова; Россия, 119234, г. Москва, Ленинские горы, д. 1, стр. 12&#13;
&#13;
Институт биоорганической химии им. академиков М.М. Шемякина и Ю.А. Овчинникова, РАН; Россия, 117997, Москва, ул. Миклухо-Маклая, д. 16/10</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bioengineering Department, School of Biology, Lomonosov Moscow State University, Leninskiye Gory 1–12, Moscow, 119234, Russia&#13;
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Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya ul. 16/10, 117997, Moscow, Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>23</day><month>05</month><year>2016</year></pub-date><volume>0</volume><issue>2</issue><fpage>49</fpage><lpage>54</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Любителев А.В., Кудряшова К.С., Михайлова М.С., Малюченко Н.В., Чертков О.В., Студитский В.М., Феофанов А.В., Кирпичников М.П., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Любителев А.В., Кудряшова К.С., Михайлова М.С., Малюченко Н.В., Чертков О.В., Студитский В.М., Феофанов А.В., Кирпичников М.П.</copyright-holder><copyright-holder xml:lang="en">Lyubitelev A.V., Kudryashova K.S., Mikhaylova M.S., Malyuchenko N.V., Chertkov O.V., Studitsky V.M., Feofanov A.V., Kirpichnikov M.P.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vestnik-bio-msu.elpub.ru/jour/article/view/327">https://vestnik-bio-msu.elpub.ru/jour/article/view/327</self-uri><abstract><p>Разработана методика синтеза флуоресцентно-меченой ДНК для сборки мононуклеосом с ДНК-линкерами длиной 40 пар нуклеотидов (п.н.). Метки Су3 и Су5 введены в линкеры на расстояниях соответственно 10 п.н. до первого и 15 п.н. после последнего нуклеотида нуклеосом-позиционирующей последовательности ДНК. В отсутствии линкерного гистона Н1.5 исследование методом флуоресцентной микроскопии одиночных комплексов выявило наличие двух равновероятных состояний нуклеосом, отличающихся конформацией ДНК-линкеров: открытой — с эффективностью переноса энергии Е между метками, равной 0,06, и закрытой — с Е = 0,37, где линкеры сближены. Связывание гистона Н1.5 с нуклеосомами происходит в наномолярном диапазоне концентраций, и скорость образования комплексов существенно выше, чем скорость их диссоциации. В комплексах происходит значительное сближение линкеров (Е = 0,73), а их конформация в области меток становится более единообразной. Разработанные нуклеосомные конструкты являются высокочувствительными флуоресцентными сенсорами для анализа структурных перестроек линкеров и в комбинации с методом микроскопии одиночных комплексов позволяют изучать структуру комплексов нуклеосом с различными архитектурными белками хроматина.</p></abstract><trans-abstract xml:lang="en"><p>The method of synthesis of fluorescently labeled DNA allowing assembly of mononucleosomes with 40 bp linkers was developed. Cy3 and Cy5 labels were introduced in the linkers at distances of 10 bp before the first and 15 bp after the last nucleotide of the nucleosome positioning DNA sequence, respectively. In the absence of histone H1.5 fluorescence microscopy of single complexes revealed the presence of two equally probable states of nucleosomes, differing in the conformation of linkers: open one with the energy transfer efficiency E between the labels being equal to 0.06 and closed one with E = 0.37. Binding of histone H1.5 with nucleosomes occurs in nanomolar range of concentrations, and the rate of complex formation is significantly higher than the dissociation rate. In the complexes, significant convergence of DNA linkers (E = 0.73) takes place, and their conformation in the region of labels becomes more uniform. Designed nucleosomal constructs are highly sensitive fluorescent sensors for the analysis of structural rearrangements of linkers and in combination with microscopy of single complexes allow studying the structure of complexes of nucleosomes with different chromatin architectural proteins.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>хроматин</kwd><kwd>нуклеосома</kwd><kwd>линкерный гистон Н1</kwd><kwd>флуоресценция</kwd><kwd>микроскопия</kwd><kwd>одиночная молекула</kwd></kwd-group><kwd-group xml:lang="en"><kwd>chromatin</kwd><kwd>nucleosome</kwd><kwd>linker histone H1</kwd><kwd>fluorescence</kwd><kwd>microscopy</kwd><kwd>single molecule</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">Shrestha D., Jenei A., Nagy P., Vereb G., Szöllősi J. Understanding FRET as a research tool for cellular studies // Int. J. Mol. Sci. 2015. Vol.16. N 4. 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