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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">54553</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">Chromato-mass-spectrometric study of skin slime peptides of fish without scales</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Хромато-масс-спектрометрическое исследование пептидов кожного секрета безчешуйчатого вида рыб</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Меркулова</surname>
       <given-names>Н Л</given-names>
      </name>
      <name xml:lang="en">
       <surname>Merkulova</surname>
       <given-names>N L</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Грехнева</surname>
       <given-names>Е В</given-names>
      </name>
      <name xml:lang="en">
       <surname>Grekhnyova</surname>
       <given-names>E V</given-names>
      </name>
     </name-alternatives>
     <email>grekhnyovaev@yandex.ru</email>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Чуйкова</surname>
       <given-names>С В</given-names>
      </name>
      <name xml:lang="en">
       <surname>Chuikova</surname>
       <given-names>S V</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Малышев</surname>
       <given-names>В Н</given-names>
      </name>
      <name xml:lang="en">
       <surname>Malyshev</surname>
       <given-names>V N</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Курский государственный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Kursk State University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Курский государственный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Kursk State University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">ООО «Акватехнологии»</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Limited Liability Company «Aquatetechnologies»</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">ООО «Акватехнологии»</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Limited Liability Company «Aquatetechnologies»</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2020-09-25T20:22:29+03:00">
    <day>25</day>
    <month>09</month>
    <year>2020</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2020-09-25T20:22:29+03:00">
    <day>25</day>
    <month>09</month>
    <year>2020</year>
   </pub-date>
   <volume>5</volume>
   <issue>3</issue>
   <fpage>461</fpage>
   <lpage>466</lpage>
   <history>
    <date date-type="received" iso-8601-date="2020-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2020</year>
    </date>
    <date date-type="accepted" iso-8601-date="2020-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2020</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/54553/view">https://rusjbpc.ru/en/nauka/article/54553/view</self-uri>
   <abstract xml:lang="ru">
    <p>В данной работе осуществлено выделение и анализ пептидной фракции секреторной жидкости клария угревидного (Clarias gariepinus). Выделение осуществлялось методами переосаждения и сопровождалось промежуточными очистками на сорбентах. Пептидная природа выделенной фракции подтверждалась методом ИК-спектроскопии. Масс-спектрометрический анализ пептидной фракции экстракта секреторной жидкости показал, что в составе преобладают хорошо удерживаемые пептиды с молекулярной массой 2000-3000 Да, а также более короткие гидрофильные пептиды. Последовательности пептидов определяли с помощью программного обеспечения Proteome Discoverer 1.4. (Thermo Scientific) с использованием базы данных аминокислотных последовательностей UniProt (uniprot-catfish+AND+organism__Clarias+gariepinus+ [13013]). Программно было найдено 14547 пепидных последовательностей, относящимся к 131 группе белков. Показано, что экстракт секреторной жидкости содержит большое количество пептидов, относящихся к различным классам белков протеома Clarias gariepinus (бета-актины, семейство цитохрома, белки теплового шока, миостатин, НАДН-дегидрогеназный комплекс и др.), которые определяют широкий набор биологических свойств, характерных для кожного секрета рыбы. Дальнейшее изучение кожного секрета клария угревидного представляется перспективным в плане фракционирования пептидного пула и определения фармакологической активности более узких фракций.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>. In this work, the isolation and analysis of the peptide fraction of the secretory fluid of Clarias gariepinus was carried out. Isolation was carried out by reprecipitation methods and was accompanied by intermediate purifications on sorbents. The peptide nature of the isolated fraction was confirmed by IR spectroscopy. Mass spectrometric analysis of the peptide fraction of the secretory fluid extract showed that well-retained peptides with a molecular weight of 2000-3000 Da, as well as shorter hydrophilic peptides predominate in the composition. Peptide sequences were determined using Proteome Discoverer 1.4 software (Thermo Scientific) using the UniProt amino acid sequence database (uniprot-catfish + AND + organism__Clarias + gariepinus + [13013]). 14547 peptide sequences belonging to 131 protein groups were found programmatically. It was shown that secretory fluid extract contains a large number of peptides belonging to various classes of Clarias gariepinus proteome proteins (beta-actins, cytochrome family, heat shock proteins, myostatin, NADH-dehydrogenase complex, etc.), which determine a wide range of biological properties characteristic for skin secretion of fish. Further study of the skin secretion of clarius seems promising in terms of fractionation of the peptide pool and determination of the pharmacological activity of a narrower fraction.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>кларий угревидный</kwd>
    <kwd>кожный секрет</kwd>
    <kwd>пептидные фракции</kwd>
    <kwd>масс-спектрометрия</kwd>
    <kwd>секвенирование</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>Clarias gariepinus</kwd>
    <kwd>skin secretion</kwd>
    <kwd>peptide fractions</kwd>
    <kwd>mass spectrometry</kwd>
    <kwd>sequencing</kwd>
   </kwd-group>
  </article-meta>
 </front>
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