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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">vavilov</journal-id><journal-title-group><journal-title xml:lang="ru">Вавиловский журнал генетики и селекции</journal-title><trans-title-group xml:lang="en"><trans-title>Vavilov Journal of Genetics and Breeding</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2500-3259</issn><publisher><publisher-name>Institute of Cytology and Genetics of Siberian Branch of the RAS</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vavilov-332</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>Статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Articles</subject></subj-group></article-categories><title-group><article-title>ЗАВИСИМОСТЬ РАЗМЕРОВ ГЛОБУЛЫ ДНК В ГАЗОВОЙ ФАЗЕ ОТ ДЛИНЫ ЦЕПИ</article-title><trans-title-group xml:lang="en"><trans-title>DEPENDENCE OF A GAS-PHASE DNA GLOBULE SIZE ON CHAIN LENGTH</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>Горячковская</surname><given-names>Т. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Goryachkovskaya</surname><given-names>T. N.</given-names></name></name-alternatives><email xlink:type="simple">peltek@bionet.nsc.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>Козлов</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlov</surname><given-names>A. S.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Попик</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Popik</surname><given-names>V. M.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колчанов</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolchanov</surname><given-names>N. A.</given-names></name></name-alternatives><email xlink:type="simple">peltek@bionet.nsc.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пельтек</surname><given-names>С. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Peltek</surname><given-names>S. E.</given-names></name></name-alternatives><email xlink:type="simple">peltek@bionet.nsc.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Федеральное государственное бюджетное научное учреждение «Федеральный исследовательский центр Институт цитологии и генетики Сибирского отделения Российской академии наук», Новосибирск, Россия<country>Россия</country></aff><aff xml:lang="en">Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Федеральное государственное бюджетное учреждение науки Институт кинетики и горения Сибирского отделения Российской академии наук, Новосибирск, Россия<country>Россия</country></aff><aff xml:lang="en">Institute of Chemical Kinetics and Combustion SB RAS, Novosibirsk, Russia<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Федеральное государственное бюджетное учреждение науки Институт ядерной физики им. Г.И. Будкера Сибирского отделения Российской академии наук, Новосибирск, Россия<country>Россия</country></aff><aff xml:lang="en">Budker Institute of Nuclear Physics SB RAS, Novosibirsk, Russia<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru">Федеральное государственное бюджетное учреждение науки Институт цитологии и генетики Сибирского отделения Российской академии наук, Новосибирск, Россия&#13;
Новосибирский национальный исследовательский государственный университет, Новосибирск, Россия<country>Россия</country></aff><aff xml:lang="en">Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia&#13;
Novosibirsk National Research State University, Novosibirsk, Russia<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2014</year></pub-date><pub-date pub-type="epub"><day>22</day><month>01</month><year>2015</year></pub-date><volume>18</volume><issue>4/2</issue><fpage>1013</fpage><lpage>1021</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Горячковская Т.Н., Козлов А.С., Попик В.М., Колчанов Н.А., Пельтек С.Е., 2015</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="ru">Горячковская Т.Н., Козлов А.С., Попик В.М., Колчанов Н.А., Пельтек С.Е.</copyright-holder><copyright-holder xml:lang="en">Goryachkovskaya T.N., Kozlov A.S., Popik V.M., Kolchanov N.A., Peltek S.E.</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://vavilov.elpub.ru/jour/article/view/332">https://vavilov.elpub.ru/jour/article/view/332</self-uri><abstract><p>Современные тенденции использования ДНК в нано- и биотехнологиях ставят задачу разработки новых методов анализа молекул ДНК на основе развивающейся приборной базы. Нами разработан метод мягкой неразрушающей абляции для перевода молекул ДНК в аэрозольную фазу при помощи терагерцевого излучения. В настоящей работе с помощью диффузионного спектрометра аэрозолей были проведены измерения размеров наночастиц ДНК в газовой фазе. Изменения, происходящие с ДНК в газовой фазе, были визуализированы при помощи атомно-силовой микроскопии (АСМ). Сопоставление измерений диффузионных размеров аэрозольных частиц плазмиды pUC18 и измерений с применением АСМ дает основания предполагать, что в газовой фазе происходит процесс конденсации молекул ДНК. Построена модель согласно закономерностям, предложенным современными представлениями о процессе конденсации ДНК и формирования глобулы. Теоретические расчеты хорошо совпали с экспериментальными результатами. Экспериментально оцененная персистентная длина ДНК в газовой фазе составила около 0,5 нм, что свидетельствует об отсутствии распределенного заряда на поверхности ДНК в газовой фазе и неионизирующем характере терагерцевого излучения. Исследование конформационных состояний ДНК в газовой фазе позволит расширить знания о закономерностях компактизации ДНК в естественных и искусственных условиях.</p></abstract><trans-abstract xml:lang="en"><p>Modern trends in using DNA in nano- and biotechnologies generated the need for new methods of analyzing DNA molecules with up-to-date equipment. We developed a method of mild nondestructive ablation with terahertz radiation for bringing DNA molecules to aerosol. DNA nanoparticles were measured in the gas phase with a diffusion aerosol spectrometer. Changes that happen to DNA in the gas phase were visualized by atomic force microscopy (AFM). Comparison of diffusion sizes of plasmid pUC18 aerosol particles with those obtained by AFM indicated that DNA molecules experienced condensation in the gas phase. We constructed a model on the base of modern concepts of DNA condensation and globule formation. The predictions matched well the experimental data. The persistence DNA length estimated in the gas phase was about 0.5 nm. This fact points to the absence of distributed charge on the DNA surface in the gas phase and the nonionizing habit of terahertz radiation. Study of DNA conformations in the gas phase will add to the understanding to DNA compactness under natural and artificial conditions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>конденсация ДНК</kwd><kwd>персистентная длина</kwd><kwd>упаковка ДНК</kwd><kwd>десорбция ДНК</kwd><kwd>атомно-силовая микроскопия</kwd><kwd>измерение размеров аэрозольных частиц</kwd></kwd-group><kwd-group xml:lang="en"><kwd>DNA condensation</kwd><kwd>persistence length</kwd><kwd>DNA package</kwd><kwd>DNA desorption</kwd><kwd>atomic force microscopy</kwd><kwd>aerosol particle size measurement</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Президиум РАН</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Анкилов А.Н., Бакланов А.М., Козлов А.С., Малышкин С.Б. Определение концентрации аэрозолеобразующих веществ в атмосфере // Оптика атмосферы и океана. 2000. 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