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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">54473</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">ANALYSIS OF CHANGE IN DNA CONFORMATION IN COMPLEXES WITH COORDINATION PLATINUM COMPOUNDS CONTAINING AMINO ACIDS</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>АНАЛИЗ КОНФОРМАЦИОННЫХ ИЗМЕНЕНИЙ ДНК ПРИ ЕЕ ВЗАИМОДЕЙСТВИИ С КООРДИНАЦИОННЫМИ СОЕДИНЕНИЯМИ ПЛАТИНЫ, СОДЕРЖАЩИМИ АМИНОКИСЛОТЫ</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Касьяненко</surname>
       <given-names>Н. А.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Kasyanenko</surname>
       <given-names>N. A.</given-names>
      </name>
     </name-alternatives>
     <email>n.kasyanenko@spbu.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Борисова</surname>
       <given-names>И В</given-names>
      </name>
      <name xml:lang="en">
       <surname>Borisova</surname>
       <given-names>I V</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Екимов</surname>
       <given-names>А А</given-names>
      </name>
      <name xml:lang="en">
       <surname>Ekimov</surname>
       <given-names>A A</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">Санкт-Петербургский государственный университет</institution>
     <city>Санкт-Петербург</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">St. Petersburg State University</institution>
     <city>Saint Petersburg</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Санкт-Петербургский государственный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">St. Petersburg State University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Санкт-Петербургский государственный химико-фармацевтический университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">St. Petersburg State University of Pharmaceutical Chemistry</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2019-12-25T20:22:29+03:00">
    <day>25</day>
    <month>12</month>
    <year>2019</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2019-12-25T20:22:29+03:00">
    <day>25</day>
    <month>12</month>
    <year>2019</year>
   </pub-date>
   <volume>4</volume>
   <issue>4</issue>
   <fpage>531</fpage>
   <lpage>536</lpage>
   <history>
    <date date-type="received" iso-8601-date="2019-12-20T20:22:29+03:00">
     <day>20</day>
     <month>12</month>
     <year>2019</year>
    </date>
    <date date-type="accepted" iso-8601-date="2019-12-20T20:22:29+03:00">
     <day>20</day>
     <month>12</month>
     <year>2019</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/54473/view">https://rusjbpc.ru/en/nauka/article/54473/view</self-uri>
   <abstract xml:lang="ru">
    <p>В работе рассматривается взаимодействие высокомолекулярной ДНК с соединениями платины, содержащими дипептид D, L-аланил-L-лейцин. Проводится сравнение влияния на конформацию ДНК моноядерного и биядерного соединений. Моноядерное соединение (AL-1) содержит дипептид в виде бидентатного лигнда, присоединенного к атому платины в цис-конфигурации. В биядерном соединении (AL-2) дипептид является связующим лигандом. В цис-положении к нему находятся замещающиеся атомы хлора. Соединения являются электролитами и хорошо растворяются в воде. Методами спектрофотометрии, кругового дихроизма, вискозиметрии и атомной силовой микроскопии показано, что в условиях эксперимента соединение AL-1 не взаимодействует с молекулой ДНК, тогда как AL-2 связывается с ДНК, при этом формируется координационная связь платины с N7 гуанина в большой бороздке. Об этом свидетельствует эксперимент с протонирование ДНК после формирования ее комплексов с AL-2. Связывание проявляется как при малой, так и при большой концентрации поддерживающего электролита (NaCl). Таким образом, не только электростатические взаимодействия играют важную роль в формировании комплексов соединения AL-2 с ДНК. Обсуждается изменение конформационных параметров ДНК при связывании (объем молекулярного клубка, изгибная жесткость или персистентная длина ДНК).</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The interaction of high molecular DNA with platinum compounds containing the dipeptide D, L-alanyl-L-leucine was studied. The influence of mononuclear and binuclear platinum compounds on DNA conformation in a solution was compared. The mononuclear compound (AL-1) contains a dipeptide in the form of a bidentate ligand attached to the platinum atom in a cis configuration. In the binuclear compound (AL-2), the dipeptide is a common ligand for two platinum atoms. The chlorine atom is in the cis position to this ligand for each platinum atom in AL-2. Compounds are electrolytes and are highly soluble in water. It was shown by the methods of spectrophotometry, circular dichroism, viscometry, and atomic force microscopy, that under the experimental conditions the AL-1 compound does not interact with the DNA molecule, while AL-2 binds to DNA with the coordination of a platinum atom to N7 guanine in the major groove. This is evidenced by an experiment with DNA protonation, that after the formation of DNA complexes with AL-2, the N7 guanine is not available to other agents. Binding appears at both low and high concentrations of supporting electrolyte (NaCl). Thus, not only electrostatic interactions play an important role in the formation of complexes of AL-2 with DNA. The change in the conformational parameters of DNA upon binding (molecular coil volume, bending stiffness or persistent length of DNA) is discussed.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>ДНК</kwd>
    <kwd>координационные соединения платины</kwd>
    <kwd>растворы</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>DNA</kwd>
    <kwd>platinum coordination compounds</kwd>
    <kwd>solutions</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <p></p>
 </body>
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