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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">54378</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">INVESTIGATION OF EFFECT OF DISULPHIDE BOND ON STABILITY OF L1 PROTEIN STRUCTURE</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ИССЛЕДОВАНИЕ ВЛИЯНИЯ ДИСУЛЬФИДНОЙ СВЯЗИ НА СТАБИЛЬНОСТЬ СТРУКТУРЫ БЕЛКА L1</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Нагибина</surname>
       <given-names>Г С</given-names>
      </name>
      <name xml:lang="en">
       <surname>Nagibina</surname>
       <given-names>G S</given-names>
      </name>
     </name-alternatives>
     <email>galina-nagibina@phys.protres.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Мельник</surname>
       <given-names>Б С</given-names>
      </name>
      <name xml:lang="en">
       <surname>Melnik</surname>
       <given-names>B S</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Институт белка РАН</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of protein research RAS</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Институт белка РАН</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of protein research RAS</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2018-12-25T20:22:29+03:00">
    <day>25</day>
    <month>12</month>
    <year>2018</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2018-12-25T20:22:29+03:00">
    <day>25</day>
    <month>12</month>
    <year>2018</year>
   </pub-date>
   <volume>3</volume>
   <issue>4</issue>
   <fpage>863</fpage>
   <lpage>868</lpage>
   <history>
    <date date-type="received" iso-8601-date="2018-12-20T20:22:29+03:00">
     <day>20</day>
     <month>12</month>
     <year>2018</year>
    </date>
    <date date-type="accepted" iso-8601-date="2018-12-20T20:22:29+03:00">
     <day>20</day>
     <month>12</month>
     <year>2018</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/54378/view">https://rusjbpc.ru/en/nauka/article/54378/view</self-uri>
   <abstract xml:lang="ru">
    <p>В данной работе мы исследовали белок L1 из галофильной археи Haroarcula marismortui. Белок является рРНК-связывающим и взаимодействует со спиралями Н77-Р78 23S рРНК. В структуру белка L1 нами введена стабилизирующая дисульфидная связь. Для поиска участка полипептидной цепи, в котором нужно проектировать дисульфидную связь, был использован подход, основанный на поиске нативно-развернутых участков в белках. Результаты нашего предыдущего исследования [1] подтвердили, что программы, предсказывающие нативно-развернутые участки (например, PONDR-FIT и IsUnstruct) можно использовать для поиска ослабленных участков в белках с жесткой упаковкой. Именно в таких участках нужно проектировать стабилизирующие дисульфидные связи. С помощью программ PONDR-FIT и IsUnstruct нами проведен анализ аминокислотной последовательности белка L1 и предсказан регион, обладающий высокой степенью неупорядоченности структуры. Им оказался участок во втором домене этого белка. В предсказанном участке нами выбраны аминокислотные остатки E82 и D114, замена которых на остатки цистеинов привела к формированию дисульфидной связи. Методом спектроскопии кругового дихроизма показано, что введенная дисульфидная связь увеличила температуру плавления белка L1 приблизительно на 10 градусов.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>We have studied protein L1 from halophilic archaea Haroarcula marismortui . The protein is rRNA-binding and interacts with helices Н77-Р78 of the 23S rRNA. We introduced a stabilizing disulphide bridge in the structure of protein L1. To identify the region in the polypeptide chain where the SS-bridge should be inserted, we used the approach based on the search for intrinsically disordered regions in proteins. The results of our previous study [1] confirmed that the software for prediction of intrinsically disordered regions, for example, PONDR-FIT and IsUnstruct, can be employed for identification of weakened regions in proteins with rigid packing. Such regions are most suitable to insert stabilizing disulphide bridges. Using software PONDR-FIT and IsUnstruct we analyzed the amino acid sequence of protein L1 and predicted the region with a high structural irregularity. It is the region in the second domain of the protein. We chose amino acid residues E82 and D114 in the predicted region, the substitution of which for cysteine residues resulted in the formation of the desired disulphide bridge. Using the method of circular dichroism spectroscopy it was demonstrated that the introduced disulphide bridge increased the melting temperature of protein L1 by approximately 10 degrees.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>рибосомный белок L1</kwd>
    <kwd>Haroarcula marismortui</kwd>
    <kwd>дисульфидная связь</kwd>
    <kwd>стабильность белка</kwd>
    <kwd>нативно-развернутые участки</kwd>
    <kwd>спектроскопия кругового дихроизма</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>ribosomal protein L1</kwd>
    <kwd>Haroarcula marismortui</kwd>
    <kwd>disulphide bond</kwd>
    <kwd>protein stability</kwd>
    <kwd>intrinsic disorder regions</kwd>
    <kwd>circular dichroism spectroscopy</kwd>
   </kwd-group>
  </article-meta>
 </front>
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  <ref-list>
   <ref id="B1">
    <label>1.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Nagibina G.S., Tin U.F., Glukhov A.S., Melnik T.N., Melnik B.S. Intrinsic Disorder-Based Design of Stabilizing Disulphide Bridge in Galphao Protein. Protein Pept. Lett., 2016, vol. 23, no. 2, pp. 176-184.</mixed-citation>
     <mixed-citation xml:lang="en">Nagibina G.S., Tin U.F., Glukhov A.S., Melnik T.N., Melnik B.S. Intrinsic Disorder-Based Design of Stabilizing Disulphide Bridge in Galphao Protein. Protein Pept. Lett., 2016, vol. 23, no. 2, pp. 176-184.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B2">
    <label>2.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Tompa P., Han K.-H. Intrinsically disordered proteins. Phys. Today, 2012, vol. 65, no. 8, pp. 64-65.</mixed-citation>
     <mixed-citation xml:lang="en">Tompa P., Han K.-H. Intrinsically disordered proteins. Phys. Today, 2012, vol. 65, no. 8, pp. 64-65.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B3">
    <label>3.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Deng X., Eickholt J., Cheng J. A comprehensive overview of computational protein disorder prediction methods. Mol. BioSyst., 2012, vol. 8, no. 1, pp. 114-121.</mixed-citation>
     <mixed-citation xml:lang="en">Deng X., Eickholt J., Cheng J. A comprehensive overview of computational protein disorder prediction methods. Mol. BioSyst., 2012, vol. 8, no. 1, pp. 114-121.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B4">
    <label>4.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Lobanov M.Y., Sokolovskiy I.V., Galzitskaya O.V. IsUnstruct: Prediction of the residue status to be ordered or disordered in the protein chain by a method based on the Ising model. J. Biomol. Struct. Dyn., 2013, vol. 31, no. 10, pp. 1034-1043.</mixed-citation>
     <mixed-citation xml:lang="en">Lobanov M.Y., Sokolovskiy I.V., Galzitskaya O.V. IsUnstruct: Prediction of the residue status to be ordered or disordered in the protein chain by a method based on the Ising model. J. Biomol. Struct. Dyn., 2013, vol. 31, no. 10, pp. 1034-1043.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B5">
    <label>5.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Dosztányi Z., Csizmók V., Tompa P., Simon I. The pairwise energy content estimated from amino acid composition discriminates between folded and intrinsically unstructured proteins. J. Mol. Biol., 2005, vol. 347, no. 4, pp. 827-839.</mixed-citation>
     <mixed-citation xml:lang="en">Dosztányi Z., Csizmók V., Tompa P., Simon I. The pairwise energy content estimated from amino acid composition discriminates between folded and intrinsically unstructured proteins. J. Mol. Biol., 2005, vol. 347, no. 4, pp. 827-839.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B6">
    <label>6.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Xue B., Dunbrack R.L., Williams R.W., Dunker A.K., Uversky V.N. PONDR-FIT: A meta-predictor of intrinsically disordered amino acids. Biochim. Biophys. Acta - Proteins Proteomics, 2010, vol. 1804, no. 4, pp. 996-1010.</mixed-citation>
     <mixed-citation xml:lang="en">Xue B., Dunbrack R.L., Williams R.W., Dunker A.K., Uversky V.N. PONDR-FIT: A meta-predictor of intrinsically disordered amino acids. Biochim. Biophys. Acta - Proteins Proteomics, 2010, vol. 1804, no. 4, pp. 996-1010.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B7">
    <label>7.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Camacho Córdova D.I., Camacho Ruíz R.M., Mateos Díaz J.C., Córdova López J.A., Rodríguez González J.A. Haloarcula marismortui, eighty-four years after its discovery in the Dead Sea, Review. Int. J. Eng. Res. Technol., 2014, vol. 3, no. 6, pp. 1257-1267.</mixed-citation>
     <mixed-citation xml:lang="en">Camacho Córdova D.I., Camacho Ruíz R.M., Mateos Díaz J.C., Córdova López J.A., Rodríguez González J.A. Haloarcula marismortui, eighty-four years after its discovery in the Dead Sea, Review. Int. J. Eng. Res. Technol., 2014, vol. 3, no. 6, pp. 1257-1267.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B8">
    <label>8.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Klein D. J., Moore P. B. and Steitz T. A. The roles of ribosomal proteins in the structure assembly, and evolution of the large ribosomal subunit. J. Mol. Biol., 2004, vol. 340, no. 1, pp. 141-177.</mixed-citation>
     <mixed-citation xml:lang="en">Klein D. J., Moore P. B. and Steitz T. A. The roles of ribosomal proteins in the structure assembly, and evolution of the large ribosomal subunit. J. Mol. Biol., 2004, vol. 340, no. 1, pp. 141-177.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B9">
    <label>9.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Gabdulkhakov A., Tishchenko S., Mikhaylina A., Garber M., Nevskaya N., Nikonov S. Crystal Structure of the 23S rRNA Fragment Specific to r-Protein L1 and Designed Model of the Ribosomal L1 Stalk from Haloarcula marismortui. Crystals, 2017, vol. 7, no. 2, p. 37.</mixed-citation>
     <mixed-citation xml:lang="en">Gabdulkhakov A., Tishchenko S., Mikhaylina A., Garber M., Nevskaya N., Nikonov S. Crystal Structure of the 23S rRNA Fragment Specific to r-Protein L1 and Designed Model of the Ribosomal L1 Stalk from Haloarcula marismortui. Crystals, 2017, vol. 7, no. 2, p. 37.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B10">
    <label>10.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Laemmli U.K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature, 1970, vol. 227, no. 5259, pp. 680-685.</mixed-citation>
     <mixed-citation xml:lang="en">Laemmli U.K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature, 1970, vol. 227, no. 5259, pp. 680-685.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B11">
    <label>11.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Ellman G.L. Tissue Sulfhydryl Groups. Biochem. Biophys., 1958, vol. 82, no. 1, pp. 70-77.</mixed-citation>
     <mixed-citation xml:lang="en">Ellman G.L. Tissue Sulfhydryl Groups. Biochem. Biophys., 1958, vol. 82, no. 1, pp. 70-77.</mixed-citation>
    </citation-alternatives>
   </ref>
  </ref-list>
 </back>
</article>
