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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">dan-63</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>БИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOLOGY</subject></subj-group></article-categories><title-group><article-title>ВЛИЯНИЕ НАНОЧАСТИЦ ЗОЛОТА НА АГРЕГАЦИЮ МИТОХОНДРИАЛЬНОЙ АСПАРТАТ-АМИНОТРАНСФЕРАЗЫ</article-title><trans-title-group xml:lang="en"><trans-title>INFLUENCE OF GOLD NANOPARTICLES ON AGGREGATION OF MITOCHONDRIAL ASPARTATE AMINITRANSFERASE</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>САЛЕМ</surname><given-names>А. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>SALEM</surname><given-names>A. E.</given-names></name></name-alternatives><email xlink:type="simple">ankel2008@gmail.com</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>ШОЛУХ</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>SHOLUKH</surname><given-names>M. V.</given-names></name></name-alternatives><email xlink:type="simple">sholukh@bsu.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Белорусский государственный университет, Минск</institution><country>Belarus</country></aff><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>25</day><month>05</month><year>2016</year></pub-date><volume>59</volume><issue>1</issue><fpage>86</fpage><lpage>89</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; САЛЕМ А.Э., ШОЛУХ М.В., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">САЛЕМ А.Э., ШОЛУХ М.В.</copyright-holder><copyright-holder xml:lang="en">SALEM A.E., SHOLUKH M.V.</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://doklady.belnauka.by/jour/article/view/63">https://doklady.belnauka.by/jour/article/view/63</self-uri><abstract><p>Исследована зависимость агрегации митохондриальной аспартат-аминотрансферазы (мАспАТ) от концентрации наночастиц золота (НЧЗ). Установлено, что в температурном диапазоне от 55 до 73 °С НЧЗ снижают агрегацию мАспАТ. Наиболее выраженный антиагрегационный эффект НЧЗ достигает 56 % и проявляется при 60 °С. Увеличение концентрации НЧЗ приводит к снижению константы скорости агрегации фермента. Высказывается предположение, что формирование связей между НЧЗ и мАспАТ будет приводить к повышению конформационной жесткости молекулы фермента, снижать вероятность анфолдинга и экспонирования на поверхности молекулы гидрофобных фрагментов, обеспечивающих межмолекулярное «слипание» и последующую агрегацию белка.</p></abstract><trans-abstract xml:lang="en"><p>We have studied the dependence of aggregation of mitochondrial aspartate aminotransferase (mAspAT) from the concentration of gold nanoparticles (AuNP). It has been shown that AuNPs decreased the aggregation of mAspAT in the temperature range from 55 to 73 °C. The maximal anti-aggregational effect of AuNP reached 56 % and was observed at 60 °C. Increase of AuNP concentration led to a decrease of the constant rate of enzyme aggregation. We suggest here that interaction between Au-NPs and mAspAT increases conformational stability of the enzyme molecule. It also reduces the probability of polypeptide chain unfolding, which causes exposure of hydrophobic patches on the protein surface resulting in intra molecular adhesion followed by the protein aggregation.</p></trans-abstract></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Merlini G. B. et al. // Clinical Chemistry and Laboratory Medicine. 2001. Vol. 39. P. 1065–1075.</mixed-citation><mixed-citation xml:lang="en">Merlini G. B. et al. // Clinical Chemistry and Laboratory Medicine. 2001. Vol. 39. 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