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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">medgen</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская генетика</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Genetics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7998</issn><publisher><publisher-name>Publishing House «Genius Media» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25557/2073-7998.2022.12.36-39</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-2213</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>КРАТКОЕ СООБЩЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BRIEF REPORT</subject></subj-group></article-categories><title-group><article-title>Характеристика спектра миссенс-замен в митохондриальных генах субъединиц НАДН дегидрогеназы для гаплогрупп мтДНК, распространенных в Северной Евразии</article-title><trans-title-group xml:lang="en"><trans-title>Spectrum and characteristics of missense substitutions in the genes for NADH dehydrogenase subunits in the mtDNA haplogroups prevailing in Northern Eurasia</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>Голубенко</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Golubenko</surname><given-names>M. V.</given-names></name></name-alternatives><email xlink:type="simple">maria-golubenko@medgenetics.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>Зарубин</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zarubin</surname><given-names>A. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Бабушкина</surname><given-names>Н. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Babushkina</surname><given-names>N. P.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Тарасенко</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tarasenko</surname><given-names>N. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Салахов</surname><given-names>Р. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Salakhov</surname><given-names>R. R.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Назаренко</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Nazarenko</surname><given-names>M. S.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт медицинской генетики, Томский национальный исследовательский медицинский центр Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute of Medical Genetics, Tomsk National Research Medical Center of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>13</day><month>01</month><year>2023</year></pub-date><volume>21</volume><issue>12</issue><fpage>36</fpage><lpage>39</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Голубенко М.В., Зарубин А.А., Бабушкина Н.П., Тарасенко Н.В., Салахов Р.Р., Назаренко М.С., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Голубенко М.В., Зарубин А.А., Бабушкина Н.П., Тарасенко Н.В., Салахов Р.Р., Назаренко М.С.</copyright-holder><copyright-holder xml:lang="en">Golubenko M.V., Zarubin A.A., Babushkina N.P., Tarasenko N.V., Salakhov R.R., Nazarenko M.S.</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://www.medgen-journal.ru/jour/article/view/2213">https://www.medgen-journal.ru/jour/article/view/2213</self-uri><abstract><p>На основе анализа последовательностей митохондриальной ДНК (мтДНК), депонированных в базах данных, исследован спектр аминокислотной изменчивости субъединиц комплекса I дыхательной цепи, кодируемых мтДНК, в зависимости от принадлежности к различным гаплогруппам мтДНК. Установлено, что около 20% аминокислот являются полиморфными в исследованном наборе последовательностей, и для 30% полиморфных аминокислот зарегистрировано более одного мутационного события (гомоплазия). Выявлено действие отрицательного отбора для некоторых генов комплекса I в гаплогруппах мтДНК, распространенных преимущественно в северных широтах. Показано, что индекс консервативности аминокислотных замен в генах комплекса I ниже, чем в других генах мтДНК, а для гена ND1 - выше, чем для других генов комплекса I. Для замен в «северных» гаплогруппах мтДНК по сравнению с распространенными в южных широтах выявлены более высокие средние значения показателя MutPred, отражающего величину эффекта замены аминокислоты на структуру и функцию белка и показателя mtDNA selection score.</p></abstract><trans-abstract xml:lang="en"><p>Based on the analysis of mitochondrial DNA sequences deposited in databases, the spectrum of amino acid variability of the mtDNA-encoded subunits of the respiratory chain complex I was studied depending on mtDNA haplogroup affiliations. It was found that about 20% of amino acids were polymorphic in the studied dataset, and for 30% of polymorphic amino acids more than one mutational event (homoplasy) was registered. The effect of negative selection was revealed for some complex I genes in mtDNA haplogroups, distributed mainly in Northern Eurasia. It has been shown that the conservation index for amino acid substitutions in complex I genes is lower than in other mtDNA genes, and for the ND1 gene this index is higher than for other complex I genes. For the MutPred index and the mtDNA selection score, which reflect the effect of amino acid substitution on the structure and function of the protein, higher average values were registered in the “Northern” mtDNA haplogroups, comparing to the “Southern” haplogroups.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>митохондриальная ДНК</kwd><kwd>популяционный полиморфизм</kwd><kwd>НАДН дегидрогеназа</kwd><kwd>аминокислотная изменчивость</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mitochondrial DNA</kwd><kwd>population polymorphism</kwd><kwd>NADH dehydrogenase</kwd><kwd>amino acid polymorphism</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">Mishmar D., Ruiz-Pesini E., Golik P., et al. Natural selection shaped regional mtDNA variation in humans. 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