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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 pub-id-type="doi">10.18699/VJ17.309</article-id><article-id custom-type="elpub" pub-id-type="custom">vavilov-1263</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>СТРУКТУРА И ВЗАИМОДЕЙСТВИЕ МАКРОМОЛЕКУЛ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>STRUCTURE AND INTERACTION OF MACROMOLECULES</subject></subj-group></article-categories><title-group><article-title>Взаимодействия белок-ДНК:  статистический анализ межатомных контактов  в большой и малой бороздках</article-title><trans-title-group xml:lang="en"><trans-title>Protein-DNA interactions: statistical analysis of interatomic contacts in major and minor grooves</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>Анашкина</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Anashkina</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва.</p></bio><bio xml:lang="en"><p>Moscow.</p></bio><email xlink:type="simple">nastya@eimb.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>Кузнецов</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuznetsov</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва.</p></bio><bio xml:lang="en"><p>Moscow.</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>Батяновский</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname> Batianovskii</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск.</p></bio><bio xml:lang="en"><p>Minsk.</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>Урошлев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Uroshlev</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва.</p></bio><bio xml:lang="en"><p>Moscow.</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>Туманян</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Tumanyan</surname><given-names>V. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва.</p></bio><bio xml:lang="en"><p>Moscow.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Есипова</surname><given-names>Н. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Esipova</surname><given-names>N. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва.</p></bio><bio xml:lang="en"><p>Moscow.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Институт молекулярной биологии им. В.А. Энгельгардта Российской академии наук.<country>Россия</country></aff><aff xml:lang="en">Engelhardt Institute of Molecular Biology RAS.<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Институт проблем управления им. В.А. Трапезникова Российской академии наук.<country>Россия</country></aff><aff xml:lang="en">V.A. Trapeznikov Institute of Control Sciences RAS.<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Институт биофизики и клеточной инженерии НАН Беларуси.<country>Беларусь</country></aff><aff xml:lang="en">Institute of Biophysics and Cell Engineering of NAS of Belarus.<country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru">Институт общей генетики им. Н.И. Вавилова Российской академии наук.<country>Россия</country></aff><aff xml:lang="en">Vavilov Institute of General Genetics RAS.<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>19</day><month>01</month><year>2018</year></pub-date><volume>21</volume><issue>8</issue><fpage>887</fpage><lpage>894</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Анашкина А.А., Кузнецов Е.Н., Батяновский А.В., Урошлев А.А., Туманян В.Г., Есипова Н.Г., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Анашкина А.А., Кузнецов Е.Н., Батяновский А.В., Урошлев А.А., Туманян В.Г., Есипова Н.Г.</copyright-holder><copyright-holder xml:lang="en">Anashkina A.A., Kuznetsov E.N.,  Batianovskii A.V., Uroshlev L.A., Tumanyan V.G., Esipova N.G.</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/1263">https://vavilov.elpub.ru/jour/article/view/1263</self-uri><abstract><p>Взаимодействия между белком и ДНК по существу лежат в основе всех процессов, происходящих в живой клетке. Познание принципов специфического распознавания сайтов ДНК позволит понять, как управляются эти процессы, и даст возможность сознательно вмешиваться в управление ими. В работе изучены методом Вороного – Делоне контакты белок­ДНК на атомном уровне в структу рах 3 518 комплексов из PDB (все имеющиеся на май 2017 г.), содержащих как белковые цепи, так и ДНК. Метод не содержит параметров и позволяет однозначно выявлять непосредственные контакты между атомами и характеризовать каждый контакт, помимо расстояния между атомами, площадью контакта, определяемой соответствующей гранью полиэдра Вороного. Показано, что большая часть контактов образуется между атомами белка и атомами са ха­ рофосфатного остова ДНК (72.9 %). На контакты с атомами нуклеиновых оснований, выходящих в бороздки ДНК, приходится для большой бороздки 17.0 % и для малой бороздки 10.1 % от всех атомных контактов. Суммарно на взаимодействия между атомами белка и атомами нуклеиновых оснований приходится 27.1 % всех атомных контактов. Анализ площади доступной поверхности атомов большой и малой бороздок показал, что она коррелирует с числом контактов (коэффициенты линейной корреляции 0.94 и 0.93 соответственно), однако атомы нуклеиновых оснований, образующие водородные связи, контактируют чаще, чем этого можно было ожидать из статистических соображений. Показано, что конформационно­стабильные пептиды достаточно часто встречаются в областях связывания с ДНК. Анализ остатков в предопределенной конформации в 3 518 комплексах белок­ДНК выявил 159 аминокислотных остатков в предопределенной конформации β­изгиба типа I, 15 остатков в конформации β­изгиба типа I’ , 6 остатков в конформации β­изгиба типа II. Остатков в конформации β­изгиба типа II’ найдено не было. Анализ контактов показал, что такие остатки практически не образуют контактов с ДНК. Контакты с атомами нуклеиновых оснований найдены только в двух гомологичных структурах 3qea и 3qe9, где атомы треонина образуют контакты с атомами нуклеиновых оснований АТ­пары.</p></abstract><trans-abstract xml:lang="en"><p>The interactions between protein and DNA in essence underlie all processes in a living cell. Understanding the principles of specific recognition of DNA sites will open the way to understand how these processes are controlled and to interfere in their operation. In the paper we studied contacts between the protein and DNA at the atomic level in the structures of all the 3 518 protein­DNA complexes available in PDB by the Voronoi–Delaunay tessellation method. The method unambiguously defines contacts between atoms without any parameters, and characterizes each contact by the distance between atoms and the contact area, which is determined by the corresponding face of the Voronoi polyhedron. It was shown that most contacts are formed between the protein atoms and the sugarphosphate backbone of the DNA (72.9 %). The contact with the atoms of the nucleic bases emerging into the grooves of DNA is 17.0 % for a major groove and 10.1 % for all atomic contacts for a minor groove. Totally, the interaction between protein atoms and nucleic base atoms accounts for 27.1 % of all contacts. Analysis of the accessible surface area of atoms in the major and the minor grooves showed a correlation with the number of contacts (coefficient of linear correlation 0.94 and 0.93, respectively), however, nucleic acid atoms forming hydrogen bonds make contacts more often than may be expected from statistical considerations. It was shown that conformationally stable peptides occur sometimes in the binding regions with DNA. Analysis of the residues in a predefined conformation in 3 518 protein­DNA complexes revealed 159 amino acid residues in a predefined β­bend type I conformation, 15 residues in the conformation of β­bend type I’, and 6 residues in the conformation of β­bend type II. No residues in the conformation of β­bend type II’ were found. Analysis of contacts showed that such residues virtually do not form contacts with DNA. Contacts with nucleic base atoms are found only in the two homologous structures 3qea and 3qe9, where threonine atoms form contacts with atoms of nucleotide bases of the AT­pair.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>комплексы белок­ДНК</kwd><kwd>разбиение Вороного – Делоне</kwd><kwd>взаимодействия белок­ДНК</kwd><kwd>специфичность узнавания</kwd></kwd-group><kwd-group xml:lang="en"><kwd>protein­DNA complexes</kwd><kwd>Voronoi – Delaunay tessellation</kwd><kwd>protein­DNA interaction</kwd><kwd>specificity of recognition</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">Anashkina A.A., Kuznetsov E.N., Batyanovskii A.V., Gnuchev N.V., Tumanyan V.G., Esipova N.G. Classification of amino acids based on comparative analysis of contacts in DNA-protein complexes and specific DNA-protein interactions. 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