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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">ilvm</journal-id><journal-title-group><journal-title xml:lang="ru">Нормативно-правовое регулирование в ветеринарии</journal-title><trans-title-group xml:lang="en"><trans-title>Legal regulation in veterinary medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2782-6252</issn><publisher><publisher-name>SpbGUVM Publishing House</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.52419/issn2782-6252.2022.2.125</article-id><article-id custom-type="elpub" pub-id-type="custom">ilvm-385</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>БИОХИМИЯ, АНАТОМИЯ, ФИЗИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOCHEMISTRY, ANATOMY, PHYSIOLOGY</subject></subj-group></article-categories><title-group><article-title>Гипохлорит-индуцированная окислительная модификация фибриногена</article-title><trans-title-group xml:lang="en"><trans-title>Hypochlorite-induced oxidative modification of fibrinogen</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>Азарова</surname><given-names>Д. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Azarova</surname><given-names>D. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Московская область;Москва</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>Васильева</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasilyeva</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</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>Юрина</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Yurina</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</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>Гаврилина</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Gavrilina</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</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>Бугрова</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Bugrova</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</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>Кононихин</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kononikhin</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Московская область; Москва</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>Николаев</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolaev</surname><given-names>E. H.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Московская область</p></bio><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Розенфельд</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Rosenfeld</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский физико-технический институт (государственный университет);&#13;
Институт биохимической физики им. Н.М. Эмануэля Российской Академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Institute of Physics and Technology (State University);&#13;
Institute of Biochemical Physics named after N.M. Emanuel of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт биохимической физики им. Н.М. Эмануэля Российской Академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Biochemical Physics named after N.M. Emanuel of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Московская государственная академия ветеринарной медицины и биотехнологии - – МВА имени К.И. Скрябина;&#13;
Институт биохимической физики им. Н.М. Эмануэля Российской Академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow State Academy of Veterinary Medicine and Biotechnology - MVA named after K.I. Scriabin;&#13;
Institute of Biochemical Physics named after N.M. Emanuel of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Московский физико-технический институт (государственный университет);&#13;
Институт энергетических проблем химической физики имени В.Л. Тальрозе Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Institute of Physics and Technology (State University);&#13;
V.L. Talroze of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Сколковский институт науки и технологий</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Skolkovo Institute of Science and Technology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>11</day><month>07</month><year>2022</year></pub-date><volume>0</volume><issue>2</issue><fpage>125</fpage><lpage>127</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Азарова Д.Ю., Васильева А.Д., Юрина Л.В., Гаврилина Е.С., Бугрова А.Е., Кононихин А.С., Николаев Е.Н., Розенфельд М.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Азарова Д.Ю., Васильева А.Д., Юрина Л.В., Гаврилина Е.С., Бугрова А.Е., Кононихин А.С., Николаев Е.Н., Розенфельд М.А.</copyright-holder><copyright-holder xml:lang="en">Azarova D.Y., Vasilyeva A.D., Yurina L.V., Gavrilina E.S., Bugrova A.E., Kononikhin A.S., Nikolaev E.H., Rosenfeld M.A.</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://ilvm.elpub.ru/jour/article/view/385">https://ilvm.elpub.ru/jour/article/view/385</self-uri><abstract><p>Фибриноген (ФГ) – это белок свертывающей системы крови, который наиболее подвержен окислительной модификации по сравнению с другими белками плазмы крови [<xref ref-type="bibr" rid="cit1">1</xref>].</p><p>Впервые с помощью масс–спектрометрии высокого разрешения (ВЭЖХ МС/МС) были изучены последствия окисления ФГ, вызванного гипохлоритом (HOCl), а также получен список модификаций аминокислотных остатков ФГ, которые участвуют в окислении. Методом масс–спектрометрии были проанализированы образцы неокисленного и обработанного 50 мкМ HOCL ФГ и было обнаружено, что множество аминокислотных остатков, локализованных во всех трех полипептидных цепях и основных структурных элементах белка, за исключением Е области, участвуют в окислении.</p><p>Таким образом, аминокислотные остатки, локализованные в области Е, которые участвуют в связывании тромбина, не были подвержены окислительной модификации, что указывает на сохранение тромбин–связывающих сайтов молекулы ФГ при окислении. Содержащей наибольшее количество окислительных сайтов является αС область что подтверждает гипотезу о возможности данной области служить ловушкой для молекул активных форм кислорода (АФК).</p></abstract><trans-abstract xml:lang="en"><p>Fibrinogen (FG) is a protein that plays a key role in the hemostasis system and is most susceptible to oxidative modification compared to other plasma proteins. FG undergoes post-translational modifications that can potentially disrupt its structure and function.</p><p>For the first time, using high resolution mass spectrometry (HPLC/MS/MS), the consequences of hypochlorite (HOCl)- induced FG oxidation were studied, and a list of FG amino acid residue oxidatively modifications. Samples of nonoxidized and treated with 50 μM HOCL fibrinogen were analyzed by mass spectrometry and it was found that many amino acid residues localized in all three polypeptide chains and the main structural elements of fibrinogen, with the exception of the E region, are involved in oxidation.</p><p>Thus, the amino acid residues localized in the E region, which are involved in thrombin binding, were not subject to oxidative modification, which indicates the preservation of the thrombin-binding sites of the fibrinogen molecule during oxidation. The αС region contains the largest number of oxidizing sites, which confirms the hypothesis that this region can serve as a trap for reactive oxygen species (ROS) molecules.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>фибриноген</kwd><kwd>гипохлорит</kwd><kwd>свободнорадикальное окисление</kwd><kwd>посттрансляционные модификации</kwd><kwd>масс – спектрометрия</kwd><kwd>активные формы кислорода</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fibrinogen</kwd><kwd>hypochlorite</kwd><kwd>free radical oxidation</kwd><kwd>posttranslational modifications</kwd><kwd>mass spectrometry</kwd><kwd>reactive oxygen species</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">Ройтман Е.В. Влияние окисленного фибриногена на свертывающую систему крови / Е.В. Ройтман, О.А. Азизова, Ю.А. Морозов // Биохимия. – 2014 – №8. – С.46–59.</mixed-citation><mixed-citation xml:lang="en">Roitman E.V. 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