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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Acta Naturae</journal-id><journal-title-group><journal-title xml:lang="en">Acta Naturae</journal-title><trans-title-group xml:lang="ru"><trans-title>Acta Naturae</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-8251</issn><publisher><publisher-name xml:lang="en">Acta Naturae Ltd</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">27450</article-id><article-id pub-id-type="doi">10.32607/actanaturae.27450</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Research Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экспериментальные статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Investigating the Structure of the Components of the PolyADP-Ribosylation System in Fusarium Fungi and Evaluating the Expression Dynamics of Its Key Genes</article-title><trans-title-group xml:lang="ru"><trans-title>Изучение структуры компонентов системы поли(ADP-рибозил)ирования у грибов рода <italic>Fusarium</italic> и оценка динамики экспрессии ее ключевых генов</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0732-5321</contrib-id><name-alternatives><name xml:lang="en"><surname>Stakheev</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Стахеев</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>stakheev.aa@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kutukov</surname><given-names>R. R.</given-names></name><name xml:lang="ru"><surname>Кутуков</surname><given-names>Р. Р.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>stakheev.aa@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Taliansky</surname><given-names>M. E.</given-names></name><name xml:lang="ru"><surname>Тальянский</surname><given-names>М. Э.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>stakheev.aa@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zavriev</surname><given-names>Sergey Kiriakovich</given-names></name><name xml:lang="ru"><surname>Завриев</surname><given-names>Сергей Кириакович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>stakheev.aa@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry</institution></aff><aff><institution xml:lang="ru">Институт биоорганической химии им. академиков М.М. Шемякина и Ю.А. Овчинникова РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-11-12" publication-format="electronic"><day>12</day><month>11</month><year>2024</year></pub-date><volume>16</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>83</fpage><lpage>92</lpage><history><date date-type="received" iso-8601-date="2024-06-17"><day>17</day><month>06</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-07-18"><day>18</day><month>07</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Stakheev A.A., Kutukov R.R., Taliansky M.E., Zavriev S.K.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Стахеев А.А., Кутуков Р.Р., Тальянский М.Э., Завриев С.К.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Stakheev A.A., Kutukov R.R., Taliansky M.E., Zavriev S.K.</copyright-holder><copyright-holder xml:lang="ru">Стахеев А.А., Кутуков Р.Р., Тальянский М.Э., Завриев С.К.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://actanaturae.ru/2075-8251/article/view/27450">https://actanaturae.ru/2075-8251/article/view/27450</self-uri><abstract xml:lang="en"><p>Poly(ADP-ribose) polymerase (PARP) is the key enzyme in polyADP-ribosylation, one of the main post-translational modifications. This enzyme is abundant in eukaryotic organisms. However, information on the PARP structure and its functions in members of the Fungi kingdom is very limited. In this study, we performed a bioinformatic search for homologs of PARP and its antagonist, PARG, in the genomes of four <italic>Fusarium</italic> strains using their whole-genome sequences annotated and deposited in databases. The <italic>F</italic><italic>. </italic><italic>graminearum</italic> PH-1, <italic>F</italic><italic>. </italic><italic>proliferatum</italic> ET-1, and <italic>F</italic><italic>. </italic><italic>oxysporum</italic> Fo47 strains were shown to possess a single homolog of both PARP and PARG. In addition, the <italic>F</italic><italic>. </italic><italic>oxysporum</italic><italic> </italic>f. sp. <italic>lycopersici</italic> strain 4287 contained four additional proteins comprising PARP catalytic domains whose structure was different from that of the remaining identified homologs. Partial nucleotide sequences encoding the catalytic domains of the PARP and PARG homologs were determined in 11 strains of 9 <italic>Fusarium</italic> species deposited in all-Russian collections, and the phylogenetic properties of the analyzed genes were evaluated. In the toxigenic <italic>F</italic><italic>. </italic><italic>graminearum</italic> strain, we demonstrated up-regulation of the gene encoding the PARP homolog upon culturing under conditions stimulating the production of the DON mycotoxin, as well as up-regulation of the gene encoding PARG at later stages of growth. These findings indirectly indicate involvement of the polyADP-ribosylation system in the regulation of the genes responsible for DON biosynthesis.</p></abstract><trans-abstract xml:lang="ru"><p>Одним из основных типов посттрансляционных модификаций является полиADP-рибозилирование, ключевую роль в котором играет поли(ADP-рибоза)полимераза (PARP). Этот фермент широко представлен у эукариотических организмов, однако сведения как о структуре, так и о функциональном значении PARP у представителей царства Грибы (Fungi) на сегодняшний день крайне ограничены. В настоящей работе проведен биоинформатический поиск гомологов PARP и его антагониста – PARG – у четырех штаммов фитопатогенных грибов рода <italic>Fusarium</italic>, структуры полных геномов которых аннотированы и депонированы в базах данных. Показано, что штаммы <italic>F. </italic><italic>graminearum</italic> PH-1, <italic>F. </italic><italic>proliferatum</italic> ET-1 и <italic>F. </italic><italic>oxysporum</italic> Fo47 содержат по одному гомологу PARP и PARG. В то же время штамм <italic>F. </italic><italic>oxysporum </italic>f. sp. <italic>lycopersici </italic>4287 содержит четыре дополнительных белка, имеющих в своем составе каталитические домены PARP, отличающиеся по своей структуре от остальных найденных гомологов. Проведено секвенирование частичных последовательностей нуклеотидов, кодирующих каталитический домен гомолога PARP и PARG, у 11 штаммов 9 видов <italic>Fusarium</italic>, представленных во всероссийских коллекциях, оценены филогенетические характеристики исследуемых генов. В опытах с токсигенным штаммом <italic>F. </italic><italic>graminearum</italic> показано усиление экспрессии гена, кодирующего гомолог PARP, при росте культуры в условиях, стимулирующих продукцию микотоксина ДОН, а также активизацию экспрессии PARG на более поздних стадиях роста, что косвенно свидетельствует об участии системы поли(ADP-рибозил)ирования в регуляции экспрессии генов, ответственных за биосинтез ДОН.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Fusarium</kwd><kwd>parylation</kwd><kwd>PARP</kwd><kwd>PARG</kwd><kwd>transcription regulation</kwd><kwd>mycotoxin</kwd><kwd>expression</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Fusarium</kwd><kwd>парилирование</kwd><kwd>PARP</kwd><kwd>PARG</kwd><kwd>регуляция транскрипции</kwd><kwd>микотоксин</kwd><kwd>экспрессия</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Российский Научный Фонд (грант)</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Science Foundation (grant)</institution></institution-wrap></funding-source><award-id>22-14-00049</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Almeida F., Rodriguez M.L., Coelho C. // Front. 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