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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-769</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>ОРИГИНАЛЬНОЕ ИССЛЕДОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLE</subject></subj-group></article-categories><title-group><article-title>Связывание PARP1 с разрывами и шпильками на ДНК изменяет структуру нуклеосом</article-title><trans-title-group xml:lang="en"><trans-title>PARP1 binding to DNA breaks and hairpins alters nucleosome structure</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>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>Малюченко Наталия Валериевна – канд. биол. наук, доцент кафедры биоинженерии биологического факультета</p><p>г. Москва, Ленинские горы, д. 1, стр. 12</p></bio><bio xml:lang="en"><p>Bioengineering Department, Biological Faculty, </p><p>Leninskie Gory 1–12, Moscow, 119234</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>Котова</surname><given-names>Е. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Kotova</surname><given-names>E. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Котова Елена Юрьевна – научный сотрудник отдела эпигенетики рака ракового центра Фокс Чейз</p><p>Cottman Avenue 333, Philadelphia, PA 19111</p></bio><bio xml:lang="en"><p>Cottman Avenue 333, Philadelphia, PA 19111</p></bio><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>Кирпичников Михаил Петрович – акад. РАН, проф., докт. биол. наук, зав. кафедрой биоинженерии и декан биологического факультета</p><p>г. Москва, Ленинские горы, д. 1, стр. 12; 117997, г. Москва, ул. Миклухо-Маклая, д. 16/10</p></bio><bio xml:lang="en"><p>Leninskie Gory 1–12, Moscow, 119234; ul. Miklukho-Maklaya 16/10, 117997, Moscow</p></bio><xref ref-type="aff" rid="aff-3"/></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>Студитский Василий Михайлович – докт. биол. наук, гл. науч. сотр. кафедры биоинженерии биологического факультета МГУ и отдела эпигенетики рака ракового центра Фокс Чейз</p><p>г. Москва, Ленинские горы, д. 1, стр. 12; Cottman Avenue 333, Philadelphia, PA 19111</p></bio><bio xml:lang="en"><p>Leninskie Gory 1–12, Moscow, 119234; Cottman Avenue 333, Philadelphia, PA 19111</p></bio><xref ref-type="aff" rid="aff-4"/></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>Феофанов Алексей Валерьевич – докт. биол. наук, проф. кафедры биоинженерии биологического факультета МГУ, руководитель лаборатории оптической микроскопии и спектроскопии биомолекул</p><p>г. Москва, Ленинские горы, д. 1, стр. 12; 117997, г. Москва, ул. Миклухо-Маклая, д. 16/10</p></bio><bio xml:lang="en"><p>Leninskie Gory 1–12, Moscow, 119234; ul. Miklukho-Maklaya 16/10, 117997, Moscow</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Московский государственный университет имени М.В. Ломоносова<country>Россия</country></aff><aff xml:lang="en">Lomonosov Moscow State University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Cancer Epigenetics Team, Fox Chase Cancer Center<country>Соединённые Штаты Америки</country></aff><aff xml:lang="en">Cancer Epigenetics Team, Fox Chase Cancer Center<country>United States</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Московский государственный университет имени М.В. Ломоносова; Институт биоорганической химии имени академиков М.М. Шемякина и Ю.А. Овчинникова РАН<country>Россия</country></aff><aff xml:lang="en">Lomonosov Moscow State University; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru">Московский государственный университет имени М.В. Ломоносова; Cancer Epigenetics Team, Fox Chase Cancer Center<country>Соединённые Штаты Америки</country></aff><aff xml:lang="en">Lomonosov Moscow State University; Cancer Epigenetics Team, Fox Chase Cancer Center<country>United States</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>21</day><month>09</month><year>2019</year></pub-date><volume>74</volume><issue>3</issue><fpage>200</fpage><lpage>206</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Малюченко Н.В., Котова Е.Ю., Кирпичников М.П., Студитский В.М., Феофанов А.В., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Малюченко Н.В., Котова Е.Ю., Кирпичников М.П., Студитский В.М., Феофанов А.В.</copyright-holder><copyright-holder xml:lang="en">Malyuchenko N.V., Kotova E.Y., Kirpichnikov M.P., Studitsky V.M., Feofanov A.V.</copyright-holder><license 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/769">https://vestnik-bio-msu.elpub.ru/jour/article/view/769</self-uri><abstract><p>Поли(АДФ-рибоза)полимераза 1 (PARP1) участвует в процессах репарации, репликации, транскрипции ДНК, регуляции клеточного цикла и апоптоза. Участие PARP1 в репарации определяется способностью фермента к взаимодействиям с различными дефектами и неканоническими структурами ДНК с последующим полиАДФ-рибозилированием белков, находящихся рядом. Ранее на примере мононуклеосом, имеющих один выступающий конец ДНК, моделирующий двуцепочечный разрыв ДНК вблизи кор-нуклеосом, нами была обнаружена способность PARP1 вызывать структурные перестройки в нуклеосомах в отсутствие НАД+. В настоящей работе мы показали, что PARP1 вызывает подобные структурные перестройки в нуклеосомах как в случае нуклеосом с концами ДНК, отстоящими от коровой области на 20 п.н., так и в случае модификации этих концов шпильками. Во всех исследованных вариантах нуклеосом PARP1 вызывает изменение укладки ДНК на октамере гистонов, сопровождающееся увеличением расстояния между соседними витками ДНК. Эти PARP1-опосредованные изменения в структуре нуклеосом предположительно способствуют деконденсации  хроматина и облегчают доступ ферментов репарации к повреждениям ДНК.</p><p> </p></abstract><trans-abstract xml:lang="en"><p>DP-ribose)polymerase 1 (PARP1) is involved in the processes of DNA repair, replication, transcription, cell cycle regulation and apoptosis. Participation of PARP 1 in DNA repair is determined by the ability of the enzyme to interact with various defects and non-canonical structures of DNA with consequent polyADP- ribosylation of neighboring proteins. Earlier for mononucleosomes containing  a DNA end recapitulating double-strand DNA break near the nucleosome, we found that PARP1 induces nucleosome structural changes in the absence of NAD+. In the present work we report that PARP1 induces similar structural changes in nucleosomes containing either DNA ends extending from the core by 20 b.p. or containing hairpins at the DNA ends. In all the cases PARP1 caused changes in DNA wrapping on the surface of the histone octamer that are accompanied by an increase in the distance between adjacent DNA gyres. These PARP1-mediated changes in the nucleosome structure presumably contribute to  chromatin decondensation and facilitate access of repair enzymes to damaged DNA.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>поли(АДФ-рибоза)полимераза 1</kwd><kwd>нуклеосома</kwd><kwd>флуоресценция</kwd><kwd>перенос энергии</kwd><kwd>микроскопия</kwd><kwd>шпильки ДНК</kwd></kwd-group><kwd-group xml:lang="en"><kwd>poly(ADP-ribose)polymerase 1</kwd><kwd>nucleosome</kwd><kwd>fluorescence</kwd><kwd>energy transfer</kwd><kwd>microscopy</kwd><kwd>DNA hairpins</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">Ludwig A., Behnke B., Holtlund J., Hilz H. 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