<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<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 Bioorganic Chemistry</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Bioorganic Chemistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Биоорганическая химия</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0132-3423</issn><issn publication-format="electronic">1998-2860</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">683104</article-id><article-id pub-id-type="doi">10.31857/S0132342325010131</article-id><article-id pub-id-type="edn">LYMUUX</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>ПИСЬМА РЕДАКТОРУ</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">Nano-frfast: design of a new genetically-encoded far-red fluorescent label</article-title><trans-title-group xml:lang="ru"><trans-title>Nano-frfast: дизайн новой генетически кодируемой дальне-красной флуоресцентной метки</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sokolinskaya</surname><given-names>E. L.</given-names></name><name xml:lang="ru"><surname>Соколинская</surname><given-names>Е. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>svetlanakr2002@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bogdanova</surname><given-names>Yu. A.</given-names></name><name xml:lang="ru"><surname>Богданова</surname><given-names>Ю. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>svetlanakr2002@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Myasnyanko</surname><given-names>I. N.</given-names></name><name xml:lang="ru"><surname>Мяснянко</surname><given-names>И. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>svetlanakr2002@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sokolov</surname><given-names>A. I.</given-names></name><name xml:lang="ru"><surname>Соколов</surname><given-names>А. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>svetlanakr2002@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Krasnova</surname><given-names>S. A.</given-names></name><name xml:lang="ru"><surname>Краснова</surname><given-names>С. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>svetlanakr2002@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Baranov</surname><given-names>M. S.</given-names></name><name xml:lang="ru"><surname>Баранов</surname><given-names>М. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>svetlanakr2002@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry RAS</institution></aff><aff><institution xml:lang="ru">ФГБУН “Институт биоорганической химии им. академиков М.М. Шемякина и Ю.А. Овчинникова” РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Pirogov Russian National Research Medical University</institution></aff><aff><institution xml:lang="ru">Российский национальный исследовательский медицинский университет им. Н.И. Пирогова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-02-15" publication-format="electronic"><day>15</day><month>02</month><year>2025</year></pub-date><volume>51</volume><issue>1</issue><issue-title xml:lang="ru"/><fpage>144</fpage><lpage>152</lpage><history><date date-type="received" iso-8601-date="2025-06-05"><day>05</day><month>06</month><year>2025</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></permissions><self-uri xlink:href="https://journals.eco-vector.com/0132-3423/article/view/683104">https://journals.eco-vector.com/0132-3423/article/view/683104</self-uri><abstract xml:lang="en"><p>We propose a new fluorogen-activating protein nano-frFAST with only 98 amino acids based on a combination of the previously created fluorogen-activating proteins nanoFAST and frFAST. A series of fluorogens with an increased system of conjugated bonds, which are potentially capable of binding to this protein, were synthesized. Based on the results of the study, a promising fluorogen which is (<italic>Z</italic>)-5-((<italic>E</italic>)-3-(4-hydroxy-2,5-dimethoxyphenyl)allylidene)-2-thioxothiazolidin-4-one (HPAR-DOM) was identified. We demonstrate that the nano-frFAST–HPAR-DOM complex can be used as a genetically encoded far-red fluorescent label for staining individual structures of living cells.</p></abstract><trans-abstract xml:lang="ru"><p>Предложен новый флуороген-активирующий белок nano-frFAST, содержащий всего 98 аминокислот, на основе комбинации ранее созданных флуороген-активирующих белков nanoFAST и frFAST. Синтезирована серия флуорогенов с увеличенной системой сопряженных связей, потенциально способных к связыванию с данным белком. По результатам исследования выявлен перспективный флуороген – (<italic>Z</italic>)-5-((<italic>E</italic>)-3-(4-гидрокси-2,5-диметоксифенил)аллилиден)-2-тиоксотиазолидин-4-он (HPAR-DOM). Показано, что комплекс nano-frFAST–HPAR-DOM может быть использован в качестве генетически кодируемой дальне-красной флуоресцентной метки для окрашивания отдельных структур живых клеток.</p></trans-abstract><kwd-group xml:lang="en"><kwd>arylidene-azolones</kwd><kwd>arylallylidene-azolones</kwd><kwd>fluorogen-activating proteins</kwd><kwd>fluorogens</kwd><kwd>fluorescent labeling</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>арилиден-азолоны</kwd><kwd>арилаллилиден-азолоны</kwd><kwd>флуороген-активирующие белки</kwd><kwd>флуорогены</kwd><kwd>флуоресцентное мечение</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Государственное задание</institution></institution-wrap><institution-wrap><institution xml:lang="en">State assignment</institution></institution-wrap></funding-source><award-id>124020900020-4</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Snapp E.L. // Trends Cell Biol. 2009. V. 19. P. 649–655. https://doi.org/10.1016/j.tcb.2009.08.002</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Chudakov D.M., Matz M.V., Lukyanov S., Lukyanov K.A. // Physiol. Rev. 2010. V. 90. P. 1103–1163. https://doi.org/10.1152/physrev.00038.2009</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Hori Y., Ueno H., Mizukami S., Kikuchi K. // J. Am. Chem. Soc. 2009. V. 131. P. 16610–16611. https://doi.org/10.1021/ja904800k</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Mineev K.S., Goncharuk S.A., Goncharuk M.V., Povarova N.V., Sokolov A.I., Baleeva N.S., Smirnov A.Yu., Myasnyanko I.N., Ruchkin D.A., Bukhdruker S., Remeeva A., Mishin A., Borshchevskiy V., Gordeliy V., Arseniev A.S., Gorbachev D.A., Gavrikov A.S., Mishin A.S., Baranov M.S. // Chem. Sci. 2021. V. 12. P. 6719–6725. https://doi.org/10.1039/d1sc01454d</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Plamont M.-A., Billon-Denis E., Maurin S., Gauron C., Pimenta F.M., Specht C.G., Shi J., Quérard J., Pan B., Rossignol J., Moncoq K., Morellet N., Volovitch M., Lescop E., Chen Y., Triller A., Vriz S., Saux T. Le, Jullien L., Gautier A. // Proc. Natl. Acad. Sci. USA. 2016. V. 113. P. 497–502. https://doi.org/10.1073/pnas.1513094113</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Hocq R., Bottone S., Gautier A., Pflügl S. // Front. Bioeng. Biotechnol. 2023. V. 11. P. 1226889. https://doi.org/10.3389/fbioe.2023.1226889</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Tsien R.Y. // Annu. Rev. Biochem. 1998. V. 67. P. 509–544. https://doi.org/10.1146/annurev.biochem.67.1.509</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Remington S.J. // Curr. Opin. Struct. Biol. 2006. V. 16. P. 714–721. https://doi.org/10.1016/j.sbi.2006.10.001</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Benaissa H., Ounoughi K., Aujard I., Fischer E., Goïame R., Nguyen J., Tebo A.G., Li C., Le Saux T., Bertolin G., Tramier M., Danglot L., Pietrancosta N., Morin X., Jullien L., Gautier A. // Nat. Commun. 2021. V. 12. P. 6989. https://doi.org/10.1038/s41467-021-27334-0</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Myasnyanko I.N., Gavrikov A.S., Zaitseva S.O., Smirnov A.Yu., Zaitseva E.R., Sokolov A.I., Malyshevskaya K.K., Baleeva N.S., Mishin A.S., Baranov M.S. // Chemistry. 2021. V. 27. P. 3986–3990. https://doi.org/10.1002/chem.202004760</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Povarova N.V., Zaitseva S.O., Baleeva N.S., Smirnov A.Yu., Myasnyanko I.N., Zagudaylova M.B., Bozhanova N.G., Gorbachev D.A., Malyshevskaya K.K., Gavrikov A.S., Mishin A.S., Baranov M.S. // Chemistry. 2019. V. 25. P. 9592–9596. https://doi.org/10.1002/chem.201901151</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Chen C., Tachibana S.R., Baleeva N.S., Myasnyanko I.N., Bogdanov A.M., Gavrikov A.S., Mishin A.S., Malyshevskaya K.K., Baranov M.S., Fang C. // Chemistry. 2021. V. 27. P. 8946–8950. https://doi.org/10.1002/chem.202101250</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Li C., Tebo A.G., Thauvin M., Plamont M.-A., Volovitch M., Morin X., Vriz S., Gautier A. // Angew. Chem. Int. Ed. Engl. 2020. V. 59. P. 17917–17923. https://doi.org/10.1002/anie.202006576</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Baleeva N.S., Bogdanova Y.A., Goncharuk M.V., Sokolov A.I., Myasnyanko I.N., Kublitski V.S., Smirnov A.Yu., Gilvanov A.R., Goncharuk S.A., Mineev K.S., Baranov M.S. // Int. J. Mol. Sci. 2024. V. 25. Р. 3054. https://doi.org/10.3390/ijms25053054</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Perfilov M.M., Zaitseva E.R., Smirnov A.Yu., Mikhaylov A.A., Baleeva N.S., Myasnyanko I.N., Mishin A.S., Baranov M.S. // Dyes Pigm. 2022. V. 198. P. 110033. https://doi.org/10.1016/j.dyepig.2021.110033</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Campaigne E., White R.L. // J. Heterocycl. Chem. 1988. V. 25. P. 367–373. https://doi.org/10.1002/jhet.5570250203</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Radi M., Botta L., Casaluce G., Bernardini M., Botta M. // J. Comb. Chem. 2010. V. 12. P. 200–205. https://doi.org/10.1021/cc9001789</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Voliani V., Bizzarri R., Nifosì R., Abbruzzetti S., Grandi E., Viappiani C., Beltram F. // J. Phys. Chem. B. 2008. V. 112. P. 10714–10722. https://doi.org/10.1021/jp802419h</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>Würth C., Grabolle M., Pauli J., Spieles M., ReschGenger U. // Nat. Protoc. 2013. V. 8. P. 1535–1550. https://doi.org/10.1038/nprot.2013.087</mixed-citation></ref></ref-list></back></article>
