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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">54668</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Моделирование в биофизике</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Modelling in biophycis</subject>
    </subj-group>
    <subj-group>
     <subject>Моделирование в биофизике</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Method for determining the chirality of protein helical structures</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Методика оценки хиральности спиральных структур белков</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Шпигун</surname>
       <given-names>Д К</given-names>
      </name>
      <name xml:lang="en">
       <surname>Shpigun</surname>
       <given-names>D K</given-names>
      </name>
     </name-alternatives>
     <email>denish.den@mail.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Луценко</surname>
       <given-names>А О</given-names>
      </name>
      <name xml:lang="en">
       <surname>Lutsenko</surname>
       <given-names>A O</given-names>
      </name>
     </name-alternatives>
     <email>aleksluchrus@yandex.ru</email>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Сидорова</surname>
       <given-names>А Э</given-names>
      </name>
      <name xml:lang="en">
       <surname>Sidorova</surname>
       <given-names>A E</given-names>
      </name>
     </name-alternatives>
     <email>sky314bone@mail.ru</email>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Московский государственный университет имени М.В. Ломоносова</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Lomonosov Moscow State University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Московский государственный университет имени М.В. Ломоносова</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Lomonosov Moscow State University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Московский государственный университет имени М.В. Ломоносова</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Lomonosov Moscow State University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2021-09-25T20:22:29+03:00">
    <day>25</day>
    <month>09</month>
    <year>2021</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2021-09-25T20:22:29+03:00">
    <day>25</day>
    <month>09</month>
    <year>2021</year>
   </pub-date>
   <volume>6</volume>
   <issue>3</issue>
   <fpage>418</fpage>
   <lpage>423</lpage>
   <history>
    <date date-type="received" iso-8601-date="2021-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2021</year>
    </date>
    <date date-type="accepted" iso-8601-date="2021-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2021</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/54668/view">https://rusjbpc.ru/en/nauka/article/54668/view</self-uri>
   <abstract xml:lang="ru">
    <p>В данной работе рассмотрены различные подходы к количественной оценке молекулярной хиральности - одной из актуальных проблем биохимической физики. Предложен новый, относительно простой, метод оценки хиральности спиральных структур белковых молекул. Метод основан на нахождении опорных точек - атомов альфа-углерода в полипептидной цепи и последующем расчете смешанных произведений векторов, соединяющих эти точки. Специальное внимание уделено нормировке хиральности спиральных белковых структур. Проанализировано 983 белков из 12 классов, (данные базы PDB). Показано, что, наряду с энергетически более выгодными правыми α- и 310-спиралями, среди исследованных белков имеются элементы вторичной структуры в левой конформации. На основании разработанного метода получена карта хиральности спиральных структур исследованных белков. Данный метод можно рассматривать как шаг к распространению понятия хиральности на иерархически вышестоящие категории объектов - белковые глобулы и надмолекулярные структуры.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>In the present study, various approaches to the quantitation of the molecular chirality, one of the pressing problems of biochemical physics, are considered. A new relatively simple method for estimating chirality in protein secondary structures is proposed. The method is based on defining the reference (control) points - alpha-carbon atoms in the polypeptide chain followed by calculating the mixed products of bond vectors associated with relative position of these points. Special attention was given to the normalization of chirality in protein helical structures. We analyzed 983 proteins of 12 classes taken from the PDB database. Along with energetically favorable right-handed α- and 310-helixes, the secondary structure motifs in the left-handed conformation were found. Based on the developed method a chirality map of protein helical structures was obtained. This method can be considered as a step towards extending the concept of chirality to hierarchically higher categories of objects - protein globules and supramolecular structures.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>белки</kwd>
    <kwd>хиральность</kwd>
    <kwd>альфа-углерод</kwd>
    <kwd>α-спираль</kwd>
    <kwd>310-спираль</kwd>
    <kwd>карта хиральности</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>proteins</kwd>
    <kwd>chirality</kwd>
    <kwd>alpha-carbon</kwd>
    <kwd>α-helix</kwd>
    <kwd>310-helix</kwd>
    <kwd>chirality map</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <p></p>
 </body>
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