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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Genetics</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Genetics</journal-title><trans-title-group xml:lang="ru"><trans-title>Генетика</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0016-6758</issn><issn publication-format="electronic">3034-5103</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">666819</article-id><article-id pub-id-type="doi">10.31857/S0016675823080039</article-id><article-id pub-id-type="edn">XSJCWK</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>ГЕНЕТИКА МИКРООРГАНИЗМОВ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Reaction of <italic>Bifidobacterium longum</italic> subsp. <italic>infantis</italic> Strain ATCC 15697 to Oxidative Stress</article-title><trans-title-group xml:lang="ru"><trans-title>Реакция штамма <italic>Bifidobacterium longum</italic> subsp. <italic>infantis</italic> ATCC 15697 на окислительный стресс</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Averina</surname><given-names>O. V.</given-names></name><name xml:lang="ru"><surname>Аверина</surname><given-names>О. В.</given-names></name></name-alternatives><email>olgavr06@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kovtun</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Ковтун</surname><given-names>А. С.</given-names></name></name-alternatives><email>olgavr06@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mavletova</surname><given-names>D. A.</given-names></name><name xml:lang="ru"><surname>Мавлетова</surname><given-names>Д. А.</given-names></name></name-alternatives><email>olgavr06@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ziganshin</surname><given-names>R. H.</given-names></name><name xml:lang="ru"><surname>Зиганшин</surname><given-names>Р. Х.</given-names></name></name-alternatives><email>olgavr06@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Danilenko</surname><given-names>V. N.</given-names></name><name xml:lang="ru"><surname>Даниленко</surname><given-names>В. Н.</given-names></name></name-alternatives><email>olgavr06@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Vavilov Institute of General Genetics, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт общей генетики им. Н.И. Вавилова Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт биоорганической химии им. М.М. Шемякина и Ю.А. Овчинникова
Российской академии наук</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-08-01" publication-format="electronic"><day>01</day><month>08</month><year>2023</year></pub-date><volume>59</volume><issue>8</issue><fpage>898</fpage><lpage>913</lpage><history><date date-type="received" iso-8601-date="2025-02-26"><day>26</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, О.В. Аверина, А.С. Ковтун, Д.А. Мавлетова, Р.Х. Зиганшин, В.Н. Даниленко</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, О.В. Аверина, А.С. Ковтун, Д.А. Мавлетова, Р.Х. Зиганшин, В.Н. Даниленко</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">О.В. Аверина, А.С. Ковтун, Д.А. Мавлетова, Р.Х. Зиганшин, В.Н. Даниленко</copyright-holder><copyright-holder xml:lang="ru">О.В. Аверина, А.С. Ковтун, Д.А. Мавлетова, Р.Х. Зиганшин, В.Н. Даниленко</copyright-holder></permissions><self-uri xlink:href="https://transsyst.ru/0016-6758/article/view/666819">https://transsyst.ru/0016-6758/article/view/666819</self-uri><abstract xml:lang="en"><p id="idm45181323437296">The genus <italic>Bifidobacterium</italic> is one of the predominant bacterial populations in human gut microbiota. Despite the increasing number of studies on the beneficial functionality of bifidobacteria for human health, knowledge about their antioxidant potential is still insufficient. The role of the antioxidant potential of bifidobacteria in maintaining the homeostasis of the intestinal microbiota of the host organism as a whole is an important task that requires solutions. For the first time, this paper presents the data of genomic, transcriptomic and proteomic analyses of probiotic strains <italic>Bifidobacterium longum</italic> subsp. <italic>infantis</italic> ATCC 15697 after the action of oxidative stress. The growing culture of strain was exposed to hydrogen peroxide for 2 hours and oxygen for 2 and 4 hours. Preliminary genome analysis of the strain showed the presence of 18 genes encoding a known protein with antioxidant function, as in other complied genomes of <italic>B. longum</italic> subsp. <italic>infantis</italic> strains available in the international database. The complete transcriptome analysis revealed an increase in transcript levels by more than two times for 6 genes with a known antioxidant function. The data of quantitative proteomic analysis showed an increase in protein levels by more than two times for five enzymes with a known antioxidant function. 28 other proteins with increased levels more than twice were identified in the cells of the growing culture in response to the long action of oxygen. These proteins can be involved in the processes of the cell’s response to stress, the amino acids, nucleotides metabolism and transport processes. Six proteins with unknown functions, which may play a significant role in the antioxidant response of anaerobic bifidobacteria, were found to have high levels in the cells after the action of stress. The obtained data are supposed to be used in the selection of <italic>B.</italic> <italic>longum</italic> subsp. <italic>infantis</italic> strains and the creation of pharmacobiotics able to correct the composition of the microbiota.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181323437696">Бифидобактерии являются преобладающей популяцией в микробиоте кишечника человека. Несмотря на растущее число данных о полезных свойствах бифидобактерий для здоровья человека, знаний об их антиоксидантном потенциале по-прежнему недостаточно. Роль антиоксидантного потенциала бифидобактерий в поддержании гомеостаза микробиоты кишечника организма хозяина в целом – важнейшая задача, требующая решений. Впервые представлены результаты геномного, транскриптомного и протеомного анализов штамма <italic>Bifidobacterium longum</italic> subsp. <italic>infantis</italic> ATCC 15697 после действия окислительного стресса. Растущую культуру штамма подвергали воздействию перекиси водорода в течение двух часов и кислорода в течение двух и четырех часов. Предварительный анализ генома штамма показал наличие 17 генов, кодирующих белки с известной антиоксидантной функцией, как и в других геномах <italic>B. longum</italic> subsp. <italic>infantis</italic>, доступных в международной базе данных NCBI. Полнотранскриптомный анализ выявил увеличение уровней транскриптов более чем в 2 раза для шести генов с известной антиоксидантной функцией. Данные количественного протеомного анализа показали повышение уровней белков более чем в 2 раза для пяти ферментов с известной антиоксидантной функцией. Более 28 других белков с повышенными уровнями более чем в 2 раза были идентифицированы в клетках растущей культуры штамма в ответ на продолжительное действие кислорода. Эти белки могут быть вовлечены в процессы ответа клетки на стресс, метаболизм аминокислот, нуклеотидов и в транспортные процессы. В клетках после действия стресса выявлен высокий уровень у шести белков с неизвестными функциями, которые могут играть значимую роль в антиоксидантной защите анаэробных бифидобактерий. Полученные данные предполагается применить при отборе штаммов <italic>B. longum</italic> subsp. <italic>infantis</italic> и создании на их основе фармабиотиков, способных корректировать состав микробиоты.</p></trans-abstract><kwd-group xml:lang="en"><kwd>bifidobacteria</kwd><kwd>genomic analysis</kwd><kwd>transcriptomic analysis</kwd><kwd>proteomic analysis</kwd><kwd>oxidative stress.</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>бифидобактерии</kwd><kwd>геномный анализ</kwd><kwd>транскриптомный анализ</kwd><kwd>протеомный анализ</kwd><kwd>окислительный стресс.</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Wong C.B., Odamaki T., Xiao J.Z. Insights into the reason of Human-Residential Bifidobacteria (HRB) being the natural inhabitants of the human gut and their potential health promoting benefits // FEMS Microbiol. Rev. 2020. V. 44. 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