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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">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">700412</article-id><article-id pub-id-type="doi">10.7868/S3034510325120045</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>ОБЩАЯ ГЕНЕТИКА</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">The Effect of Pharmacological Agents on the Expression of the Genes of the Chaperone GrpE and Co-Chaperone IbpA in <italic>Escherichia coli</italic> Cells</article-title><trans-title-group xml:lang="ru"><trans-title>ВЛИЯНИЕ ФАРМАКОЛОГИЧЕСКИХ СРЕДСТВ НА ЭКСПРЕССИЮ ГЕНОВ ШАПЕРОНА GrpE И КО-ШАПЕРОНА IbpA В КЛЕТКАХ <italic>Escherichia coli</italic></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Smirnova</surname><given-names>S. V</given-names></name><name xml:lang="ru"><surname>Смирнова</surname><given-names>С. В</given-names></name></name-alternatives><email>s.v.smirnova.genet@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kurkieva</surname><given-names>A. G</given-names></name><name xml:lang="ru"><surname>Куркиева</surname><given-names>А. Г</given-names></name></name-alternatives><email>-</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Manukhov</surname><given-names>I. V</given-names></name><name xml:lang="ru"><surname>Манухов</surname><given-names>И. В</given-names></name></name-alternatives><email>-</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Fomin</surname><given-names>V. V</given-names></name><name xml:lang="ru"><surname>Фомин</surname><given-names>В. В</given-names></name></name-alternatives><email>-</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Abilev</surname><given-names>S. K</given-names></name><name xml:lang="ru"><surname>Абилев</surname><given-names>С. К</given-names></name></name-alternatives><email>-</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Vavilov Institute of General Genetics of Russian Academic Science</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">Moscow Institute of Physics and Technology</institution></aff><aff><institution xml:lang="ru">Московский физико-технический институт</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2025</year></pub-date><volume>61</volume><issue>12</issue><issue-title xml:lang="en">VOL 61, NO12 (2025)</issue-title><issue-title xml:lang="ru">ТОМ 61, №12 (2025)</issue-title><fpage>44</fpage><lpage>53</lpage><history><date date-type="received" iso-8601-date="2026-01-08"><day>08</day><month>01</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2026-12-15"/></permissions><self-uri xlink:href="https://transsyst.ru/0016-6758/article/view/700412">https://transsyst.ru/0016-6758/article/view/700412</self-uri><abstract xml:lang="en"><p>To study the effect of pharmacological agents on the expression of the DnaK chaperone and IbpA co-chaperone genes, two biosensors were used: <italic>Escherichia coli</italic> MG1655 pGrpE-lux and <italic>E. coli</italic> MG1655 pIbpA-lux. The <italic>luxCDABE</italic> operon of the bacterium <italic>P. luminescens</italic>, substituted for the promoters of the <italic>grpE</italic> and the <italic>ibpA</italic> genes correspondingly, serves as a reporter for the expression of these genes. The induction of the expression of the <italic>grpE</italic> and <italic>ibpA</italic> genes indicates the ability of the tested compounds to influence protein folding and refolding. 10 of the 12 tested compounds are known pharmacological agents. The fluoroquinoline topoisomerase inhibitors — the antibiotics ciprofloxacin and nalidixic acid, the cytostatics 5-fluorouracil and mitomycin C, as well as the antibacterial agent dioxin — elicited a response in both biosensors, indicating the ability of these substances to influence the structure of both <italic>de novo</italic> synthesized proteins and proteins functioning in the cell. Rifampicin induced a response only in the pGrpE-lux biosensor, whereas cisplatin and 5-bromo-2-deoxyuridine induced a response only in the pIbpA-lux biosensor. The cytostatic actinomycin D showed high toxicity to bacteria, which did not allow its activity against chaperones to be registered. 6-Thioguanine did not elicit a response from both biosensors. All these compounds have mutagenic/genotoxic activity. The standard genotoxicants/mutagens 4-NQO and NaN<sub>3</sub> induced a response in both biosensors.</p></abstract><trans-abstract xml:lang="ru"><p>Для изучения влияния фармакологических средств на экспрессию генов шаперона DnaK и ко-шаперона IbpA были использованы два биосенсора <italic>Escherichia coli</italic> MG1655 pGrpE-lux и MG1655 pIbpA-lux. В качестве репортера экспрессии этих генов служит оперон <italic>luxCDABE</italic> бактерии <italic>P. luminescens</italic>, вставленный под промоторы генов <italic>grpE</italic> и <italic>ibpA</italic> соответственно. Индукция экспрессии генов <italic>grpE</italic> и <italic>ibpA</italic> указывает на способность тестируемых соединений влиять на фолдинг и рефолдинг белков. 10 из 12 тестированных соединений являются известными фармакологическими средствами. Фторхинолоновые ингибиторы топоизомераз – антибиотики ципрофлоксацин и налидиксовая кислота, цитостатики 5-фторурацил и митомицин C, а также антибактериальное средство диоксидин вызывали ответ у обоих биосенсоров, что указывает на способность этих веществ влиять на структуру как <italic>de novo</italic> синтезированных белков, так и функционирующих в клетке белков. Рифампицин индуцировал ответ только у биосенсора pGrpE-lux, тогда как цисплатин и 5-бром-2-дезоксиуридин только у биосенсора pIbpA-lux. Цитостатик актиномицин Д проявил высокую токсичность для бактерий, что не позволило зарегистрировать его активность в отношении шаперонов. 6-Тиогуанин не вызывал ответа у обоих биосенсоров. Все эти соединения обладают мутагенной/генотоксической активностью. Стандартные генотоксиканты/мутагены 4-HXO и NaN<sub>3</sub> индуцировали ответ у обоих биосенсоров. Обсуждаются возможности дальнейшего применения биосенсоров pGrpE-lux и pIbpA-lux для скрининга потенциальных ингибиторов шаперонов.</p></trans-abstract><kwd-group xml:lang="en"><kwd><italic>Escherichia coli</italic></kwd><kwd>biosensors</kwd><kwd>pGrpE-lux</kwd><kwd>pIbpA-lux</kwd><kwd>gene expression</kwd><kwd>DnaK chaperone</kwd><kwd>IbpA co-chaperone</kwd><kwd>cytostatics</kwd><kwd>antibiotics</kwd><kwd>mutagens</kwd></kwd-group><kwd-group xml:lang="ru"><kwd><italic>Escherichia coli</italic></kwd><kwd>биосенсоры</kwd><kwd>pGrpE-lux</kwd><kwd>pIbpA-lux</kwd><kwd>экспрессия генов</kwd><kwd>шаперон DnaK</kwd><kwd>ко-шаперон IbpA</kwd><kwd>цитостатики</kwd><kwd>антибиотики</kwd><kwd>мутагены</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках исследований по государственному заданию 125091010190-9. Работа И.В. Манухова и В.В. 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