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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">54393</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Общая биофизика</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>General biophysics</subject>
    </subj-group>
    <subj-group>
     <subject>Общая биофизика</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">COMPARATIVE ANALYSIS OF SPATIAL AND ELECTRONIC STRUCTURE OF TRIPEPTIDE INHIBITORS OF ANGIOTENSIN-CONVERTING ENZYME (ACE)</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>СРАВНИТЕЛЬНЫЙ АНАЛИЗ ПРОСТРАНСТВЕННОЙ И ЭЛЕКТРОННОЙ СТРУКТУРЫ ТРИПЕПТИДНЫХ ИНГИБИТОРОВ АНГИОТЕНЗИН-ПРЕВРАЩАЮЩЕГО ФЕРМЕНТА (АПФ)</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Агаева</surname>
       <given-names>Г А</given-names>
      </name>
      <name xml:lang="en">
       <surname>Agaeva</surname>
       <given-names>G A</given-names>
      </name>
     </name-alternatives>
     <email>gulshen@mail.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Агаева</surname>
       <given-names>У Т</given-names>
      </name>
      <name xml:lang="en">
       <surname>Agaeva</surname>
       <given-names>U T</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Годжаев</surname>
       <given-names>Н М</given-names>
      </name>
      <name xml:lang="en">
       <surname>Godjaev</surname>
       <given-names>N M</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">Бакинский государственный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Baku State University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Бакинский государственный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Baku State University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Бакинский государственный университет; Бакинский инженерный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Baku State University; Baku Engineering University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2019-03-25T20:22:29+03:00">
    <day>25</day>
    <month>03</month>
    <year>2019</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2019-03-25T20:22:29+03:00">
    <day>25</day>
    <month>03</month>
    <year>2019</year>
   </pub-date>
   <volume>4</volume>
   <issue>1</issue>
   <fpage>39</fpage>
   <lpage>45</lpage>
   <history>
    <date date-type="received" iso-8601-date="2019-03-20T20:22:29+03:00">
     <day>20</day>
     <month>03</month>
     <year>2019</year>
    </date>
    <date date-type="accepted" iso-8601-date="2019-03-20T20:22:29+03:00">
     <day>20</day>
     <month>03</month>
     <year>2019</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/54393/view">https://rusjbpc.ru/en/nauka/article/54393/view</self-uri>
   <abstract xml:lang="ru">
    <p>Методами молекулярной механики и квантово-химических расчетов исследовано пространственное и электронное строение антигипертензивных трипептидов LPP, IPP, VPP, LKP, LQP и LRP. Эти антигипертензивные трипептиды действуют как ингибиторы ангиотензин-превращающего фермента (АПФ). Расчет исходных структурных вариантов молекул трипептидов, составленных на основе стабильных конформеров соответствующих монопептидов, выявил ограниченный набор энергетически предпочтительных конформационных состояний молекул в определенном интервале энергии. В результате расчетов были определены величины энергетических вкладов внутримолекулярных взаимодействий в низкоэнергетических конформационных состояниях молекул. Конформационный анализ трипептидов позволил выявить природу сил, стабилизирующих энергетически предпочтительных пространственных структур молекул. На основе полученных результатов были определены энергетические и электронные характеристики оптимальных пространственных структур молекул трипептидов. В результате исследования были также определены энергетически предпочтительные области величин двугранных углов , величины энергетических вкладов межостаточных взаимодействий и водородных связей, а также взаимное расположение остатков и их боковых цепей в низкоэнергетических конформациях трипептидов. На основе полученных параметров были построены молекулярные модели наиболее стабильных конформаций трипептидных ингибиторов, сопоставление которых дает возможность выделить структурные критерии, необходимые для создания лекарственных препаратов пригодных для клинического использования.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>By means of molecular mechanics and quantum-chemical calculations have been investigated of the spatial and electronic structures of antihypertensive tripeptide molecules. LPP, IPP, VPP, LKP, LQP and LRP tripeptides act as angiotensin-converting enzyme ACE inhibitors in vitro. The conformational study of molecules was carried out on base the low-energy conformations of its monopeptides. The calculation show the values of all intermolecular interactions between residues of optimal conformations in molecules. On the basis of obtained results have been determined the energy and electronic characteristics of these tripeptides. Theoretical conformational analysis permit to found the forces, stabilized the energy preferable spatial structures of molecules. As a result of this study were are also determined energy preferred areas of the values of dihedral angles of the backbone and side chains, values energy contributions of inter-residues interactions and hydrogen bonds, as well as orientations of the side chains in the lowest energy conformations. On base got geometry parameters were built molecular models the most stable conformations of tripeptide inhibitors, which collation enables to select the structured criteria required for making medicinal preparation suitable to clinical use.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>антигипертензивные пептиды</kwd>
    <kwd>ангиотензин-превращающий фермент</kwd>
    <kwd>ингибиторы</kwd>
    <kwd>конформация</kwd>
    <kwd>метод молекулярной механики</kwd>
    <kwd>квантово-химический метод</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>antihypertensive tripeptide</kwd>
    <kwd>angiotensin converting enzyme (ACE)</kwd>
    <kwd>conformation</kwd>
    <kwd>inhibitor</kwd>
    <kwd>molecular mechanics method</kwd>
    <kwd>quantum-chemical method</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <p></p>
 </body>
 <back>
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