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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">54028</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>МОЛЕКУЛЯРНАЯ БИОФИЗИКА И ФИЗИКА БИОМОЛЕКУЛ</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>MOLECULAR BIOPHYSICS AND PHYSICS OF BIOMOLECULES</subject>
    </subj-group>
    <subj-group>
     <subject>МОЛЕКУЛЯРНАЯ БИОФИЗИКА И ФИЗИКА БИОМОЛЕКУЛ</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">INVESTIGATION OF SPATIAL STRUCTURE OF NEOKYOTORPHIN</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ИССЛЕДОВАНИЕ ПРОСТРАНСТВЕННОЙ СТРУКТУРЫ НЕОКИОТОРФИНА</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Ахвердиева</surname>
       <given-names>Г. А.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Akverdieva</surname>
       <given-names>G. A.</given-names>
      </name>
     </name-alternatives>
     <email>hagverdigulnara@gmail.com</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Бакинский государственный университет</institution>
     <city>Баку</city>
     <country>Азербайджан</country>
    </aff>
    <aff>
     <institution xml:lang="en">Baku State University</institution>
     <city>Baku</city>
     <country>Azerbaijan</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2016-06-25T20:22:29+03:00">
    <day>25</day>
    <month>06</month>
    <year>2016</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2016-06-25T20:22:29+03:00">
    <day>25</day>
    <month>06</month>
    <year>2016</year>
   </pub-date>
   <volume>1</volume>
   <issue>1</issue>
   <fpage>200</fpage>
   <lpage>203</lpage>
   <history>
    <date date-type="received" iso-8601-date="2016-06-20T20:22:29+03:00">
     <day>20</day>
     <month>06</month>
     <year>2016</year>
    </date>
    <date date-type="accepted" iso-8601-date="2016-06-20T20:22:29+03:00">
     <day>20</day>
     <month>06</month>
     <year>2016</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/54028/view">https://rusjbpc.ru/en/nauka/article/54028/view</self-uri>
   <abstract xml:lang="ru">
    <p>В работе представлены результаты исследования неокиоторфина методами молекулярной механики и молекулярной динамики. Определены энергетические и геометрические параметры оптимальных структур пептида.Установлено, что пространственное строение неокиоторфина в условиях водного окружения может быть описано набором низкоэнергетических состояний, находящихся в конформационном равновесии; спиральные или полусвернутые конформации отвечают наиболее стабильным состояниям данной молекулы. Выявлено, что для N -концевого трипептидного участка молекулы характерен высокий уровень подвижности, в отличие от его С-концевого дипептидного участка, свернутая структура которого сохраняется на протяжении всего этапа моделирования. Конформационная жесткость и ориентация боковых цепей указанного дипептидного участка играют экранирующую роль в сохранении устойчивости химической связи Tyr-Arg к расщепляющему действию аминопептидаз, что является важным для функциональной активности молекулы.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The spatial structure of neokyotorphin have been investigated within molecular mechanics framework and detailed by molecular dynamics simulations. The energy and geometrical parameters of the optimal structures of peptide are obtained. It is found that the spatial structure of neokyotorphin can be described by a set of low-energy states that are in a conformational equilibrium under aqueous environment, the spiral and semifolded conformations correspond to the most stable states of this molecule. It was revealed that the N-terminal tripeptide segment of the molecule is characterized by a high level of mobility, in contrast to its the C-terminal dipeptide segment, folded structure of which is maintained throughout the simulation stage. The conformational rigidity and orientation of side chain of the mentioned dipeptide segment play the shielding role role in maintaining of the stability of Tyr-Arg chemical bond to degradation action of aminopeptidases that is important for the functional activity of the molecule.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>неокиоторфин</kwd>
    <kwd>пространственная структура</kwd>
    <kwd>конформация</kwd>
    <kwd>молекулярная механика</kwd>
    <kwd>молекулярная динамика</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>neokyotorphin</kwd>
    <kwd>spatial structure</kwd>
    <kwd>conformation</kwd>
    <kwd>molecular mechanics</kwd>
    <kwd>molecular dynamics</kwd>
   </kwd-group>
  </article-meta>
 </front>
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  <p></p>
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