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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Russian Journal of Biological Physics and Chemisrty</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Russian Journal of Biological Physics and Chemisrty</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>АКТУАЛЬНЫЕ ВОПРОСЫ БИОЛОГИЧЕСКОЙ ФИЗИКИ И ХИМИИ</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2499-9962</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">54260</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>МЕДИЦИНСКАЯ БИОФИЗИКА И БИОФИЗИЧЕСКАЯ ХИМИЯ</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>MEDICAL BIOPHYSICS AND BIOPHYSICAL CHEMISTRY</subject>
    </subj-group>
    <subj-group>
     <subject>МЕДИЦИНСКАЯ БИОФИЗИКА И БИОФИЗИЧЕСКАЯ ХИМИЯ</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">CATIONIC MESO-SUBSTITUTED THIACARBOCYANINE DYES AS SPECTRAL-FLUORESCENT PROBES FOR DNA</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>КАТИОННЫЕ МЕЗО-ЗАМЕЩЕННЫЕ ТИАКАРБОЦИАНИНОВЫЕ КРАСИТЕЛИ В КАЧЕСТВЕ СПЕКТРАЛЬНО-ФЛУОРЕСЦЕНТНЫХ ЗОНДОВ ДЛЯ ДНК</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Пронкин</surname>
       <given-names>П Г</given-names>
      </name>
      <name xml:lang="en">
       <surname>Pronkin</surname>
       <given-names>P G</given-names>
      </name>
     </name-alternatives>
     <email>pronkinp@gmail.com</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Шведова</surname>
       <given-names>Л А</given-names>
      </name>
      <name xml:lang="en">
       <surname>Shvedova</surname>
       <given-names>L A</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Татиколов</surname>
       <given-names>А С</given-names>
      </name>
      <name xml:lang="en">
       <surname>Tatikolov</surname>
       <given-names>A S</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Институт биохимической физики им. Н.М. Эмануэля РАН</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences (IBCP PAS)</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Институт биохимической физики им. Н.М. Эмануэля РАН</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences (IBCP PAS)</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Институт биохимической физики им. Н.М. Эмануэля РАН</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences (IBCP PAS)</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2018-03-25T20:22:29+03:00">
    <day>25</day>
    <month>03</month>
    <year>2018</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2018-03-25T20:22:29+03:00">
    <day>25</day>
    <month>03</month>
    <year>2018</year>
   </pub-date>
   <volume>3</volume>
   <issue>1</issue>
   <fpage>153</fpage>
   <lpage>157</lpage>
   <history>
    <date date-type="received" iso-8601-date="2018-03-20T20:22:29+03:00">
     <day>20</day>
     <month>03</month>
     <year>2018</year>
    </date>
    <date date-type="accepted" iso-8601-date="2018-03-20T20:22:29+03:00">
     <day>20</day>
     <month>03</month>
     <year>2018</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/54260/view">https://rusjbpc.ru/en/nauka/article/54260/view</self-uri>
   <abstract xml:lang="ru">
    <p>Изучены спектрально-флуоресцентные свойства новых катионных тиакарбоцианиновых красителей - 3,3'-диметил-9-фенилитиакарбоцианин-иодида (ДФТЦ) и его аналога 3,3'-диэтил-9-(2-гидрокси-4-метоксифенил)тиакарбоцианин-иодида (ДМФТЦ). Несмотря на наличие объёмных заместителей в мезо -положении полиметиновой цепи эти красители в растворах находятся в формах транс- изомеров независимо от полярности растворителя. В растворе фосфатного буфера красители образуют нековалентные комплексы с ДНК. Взаимодействие с ДНК протекает с образованием комплексов красителей как в мономерной, так и в агрегированной форме и сопровождается изменениями спектрально-флуоресцентных свойств красителей. Взаимодействие мономерных молекул ДФТЦ и ДМФТЦ с ДНК не приводит к сдвигу изомерного равновесия в сторону цис- изомера и протекает преимущественно через транс- изомер. Методом импульсного фотолиза изучено триплетное состояние молекул красителей, связанных в комплекс с ДНК. Повышение температуры плавления ДНК свидетельствуют в пользу образования красителями ДФТЦ и ДМФТЦ комплексов интеркаляции.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Spectral-fluorescent properties of new cationic thiacarbocyanine dyes - 3,3'-dimethyl-9-phenylthiacarbocyanine iodide (DPTC) and its analogue, 3,3'-diethyl-9-(2-hydroxy-4-methoxyphenyl)thiacarbocyanine iodide (DMPTC), have been studied. Despite the presence of bulky substituents in the meso -position of the polymethine chain, these dyes in solutions are in the forms of trans- isomers regardless of the solvent polarity. In a phosphate buffer solution, these dyes form noncovalent complexes with DNA. The interaction with DNA proceeds with the formation of dye complexes in both monomeric and aggregated forms and is accompanied by changes in the spectral-fluorescent properties of the dyes. The interaction of monomeric molecules of DPTC and DMPTC with DNA does not lead to a shift of the isomeric equilibrium toward the cis- isomer and proceeds mainly through the trans- isomer. The triplet state of dye molecules bound in a complex with DNA has been studied by flash photolysis. An increase in the melting temperature of DNA indicates the formation of intercalation complexes by the dyes.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>тиакарбоцианиновые красители</kwd>
    <kwd>ДНК</kwd>
    <kwd>нековалентный комплекс</kwd>
    <kwd>спектрально-флуоресцентные зонды</kwd>
    <kwd>импульсный фотолиз</kwd>
    <kwd>интеркаляция</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>thiacarbocyanine dyes</kwd>
    <kwd>DNA</kwd>
    <kwd>noncovalent complex</kwd>
    <kwd>spectral-fluorescent probes</kwd>
    <kwd>flash photolysis</kwd>
    <kwd>intercalation</kwd>
   </kwd-group>
  </article-meta>
 </front>
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