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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vestib</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной  академии наук Беларуси. Серия биологических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Biological Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1029-8940</issn><issn pub-type="epub">2524-230X</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1029-8940-2019-64-3-326-337</article-id><article-id custom-type="elpub" pub-id-type="custom">vestib-451</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>Структурные переходы в смешанных классах белков</article-title><trans-title-group xml:lang="en"><trans-title>Structural transitions in mixed classes of proteins</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Побойнев</surname><given-names>В. B.</given-names></name><name name-style="western" xml:lang="en"><surname>Poboinev</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Побойнев Виктор Витольдович – аспирант, ассистент </p><p>пр. Дзержинского, 83, 220116, г. Минск</p></bio><bio xml:lang="en"><p>Victor V. Poboinev – Postgraduate student, assistant </p><p>83, Dzerzhynskii Ave., 220116, Minsk, Republic of Belarus</p></bio><email xlink:type="simple">dremozzew@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хрусталёв</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Khrustalev</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хрусталев Владислав Викторович – доцент, заведующий кафедрой</p><p>пр. Дзержинского, 83, 220116, г. Минск</p></bio><bio xml:lang="en"><p>Vladislav V. Khrustalev – Assistant Professor, Head of the Department</p><p>83, Dzerzhynskii Ave., 220116, Minsk, Republic of Belarus</p></bio><email xlink:type="simple">vvkhrustalev@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хрусталёва</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Khrustaleva</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хрусталева Татьяна Александровна – старший научный сотрудник</p><p>ул. Академическая, 28, 220072, г. Минск</p></bio><bio xml:lang="en"><p>Tatyana A. Khrustaleva – Senior researcher </p><p>28, Akademicheskaya Str., 220072, Minsk, Republic of Belarus</p></bio><email xlink:type="simple">tanissia.lir@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Стожаров</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Stojarov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Стожаров Александр Николаевич – профессор, заведующий кафедрой</p><p>пр. Дзержинского, 83, 220116, г. Минск</p></bio><bio xml:lang="en"><p>Aliaksandr N. Stazharau – Professor, Head of the Department </p><p>83, Dzerzhynskii Ave., 220116, Minsk, Republic of Belarus</p><p> </p></bio><email xlink:type="simple">stojarov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный медицинский университет</institution></aff><aff xml:lang="en"><institution>Belarusian State Medical University</institution></aff></aff-alternatives><aff xml:lang="ru" id="aff-2"><institution>Институт физиологии НАН Беларуси</institution><country>Belarus</country></aff><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>16</day><month>08</month><year>2019</year></pub-date><volume>64</volume><issue>3</issue><fpage>326</fpage><lpage>337</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Побойнев В.B., Хрусталёв В.В., Хрусталёва Т.А., Стожаров А.Н., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Побойнев В.B., Хрусталёв В.В., Хрусталёва Т.А., Стожаров А.Н.</copyright-holder><copyright-holder xml:lang="en">Poboinev V.V., Khrustalev V.V., Khrustaleva T.A., Stojarov A.N.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vestibio.belnauka.by/jour/article/view/451">https://vestibio.belnauka.by/jour/article/view/451</self-uri><abstract><p>Изучены особенности аминокислотного состава участков белков классов «альфа + бета» и «альфа/ бета», склонных к структурным переходам. Данные получены путём сравнения разных трёхмерных структур белков с абсолютно идентичной аминокислотной последовательностью. В работе не рассматривались фрагменты белков, расположение атомов в которых невозможно определить методом рентгеноструктурного анализа. Судя по более высокому проценту остатков, находящихся в структурно неустойчивых фрагментах, белки класса «альфа + бета» менее стабильны, чем белки класса «альфа/бета». Наиболее частым структурным переходом является укорочение Nи C-концов альфа-спиралей и бета-тяжей. Найдены и полностью «исчезающие» (переходящие в койл) альфа-спирали и бета-тяжи, аминокислотный состав которых несёт в себе ценную информацию, позволяющую выявить фрагменты белков, которые способны к переходу от альфа-спиралей к бета-тяжам и обладают сходным аминокислотным составом как с «исчезающими» альфа-спиралями, так и с «исчезающими» бета-тяжами. Аминокислотный состав способных к полному «исчезновению» альфа-спиралей достоверно отличается от такового способных к полному</p></abstract><trans-abstract xml:lang="en"><p>It was studied the features of amino acid content of protein regions of “alpha + beta” and “alpha/beta” classes, that are prone to structural transitions. The data have been obtained by the way of the comparison of different threedimensional structures of proteins with absolutely identical amino acid sequence. In this study we ignored fragments of proteins in which positions of atoms cannot be determined with the help of X-ray crystallography. Proteins of “alpha + beta” class are less stable than proteins of “alpha/beta” class, since the percent of structurally instable residues in them is higher. Most frequent type of structural transitions is the decrease of length of N-terminal and C-terminal parts of alpha helices and beta strands. Alpha helices and beta strands that can completely disappear (turn to coil) have also been found. The data of their amino acid content is important for the development of the method able to detect fragments of proteins prone to transitions from alpha helix to beta strand. Those fragments should combine characteristic features of amino acid content of both completely disappearing alpha helices and completely disappearing beta strands. The amino acid composition of alpha-helices capable to complete disappearance is significantly different from that for beta-strands capable to complete disappearance: frequencies of alanine, glutamine and glutamic acid usage are increased, frequencies of isoleucine, threonine and glycine usage are reduced.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>структурный переход</kwd><kwd>белок</kwd><kwd>бета-тяж</kwd><kwd>альфа-спираль</kwd><kwd>вторичная структура белка</kwd></kwd-group><kwd-group xml:lang="en"><kwd>structural transition</kwd><kwd>protein</kwd><kwd>beta-strand</kwd><kwd>alpha-helix</kwd><kwd>secondary structure of protein</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">SCOP: a structural classification of proteins database for the investigation of sequences and structures / A. G. Murzin [et al.] // J. Mol. Biol. – 1995. – Vol. 247, N 4. – P. 536–540. https://doi.org/10.1016/s0022-2836(05)80134-2</mixed-citation><mixed-citation xml:lang="en">Murzin A. G., Brenner S. E., Hubbard T., Chothia C. SCOP: a structural classification of proteins database for the investigation of sequences and structures.Journal of Molecular Biology, 1995, vol. 247, no. 4, pp. 536–540. https://doi.org/ 10.1016/s0022-2836(05)80134-2</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Термодинамическая характеристика стабильности структуры белков четырёх классов / В. В. Побойнев [и др.] // Молекулярные, мембранные и клеточные основы функционирования биосистем : междунар. науч. конф. ; 13-й съезд Белорус. обществ. об-ния фотобиологов и биофизиков : тез. докл., Минск, 27–29 июня 2018 г. / редкол. : И. Д. Волотовский (отв. ред.) [и др.]. – Минск, 2018. – С. 34.</mixed-citation><mixed-citation xml:lang="en">Poboinev V. V., Khrustalev V. V., Stozharov A. N., Khrustaleva Т. А. Thermodynamic characteristics of stability of the structure of proteins of four classes.Molekulyarnye, membrannye i kletochnye osnovy funktsionirovaniya biosistem: mezhdunarodnaya nauchnaya konferentsiya; Trinadtsatyi s’’ezd Belorusskogo obshchestvennogo ob’’edineniya fotobiologov i biofizikov: tezisy dokladov (Belarus’, Minsk, 27–29 iyunya 2018 goda) [Molecular, membrane and cellular bases of the functioning of biosystems: international scientific conference; The thirteenth congress of the Belarusian public association of photobiologists and biophysicists: abstracts of reports (Belarus, Minsk, June 27–29, 2018)]. Minsk, 2018, p. 34 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Geschwind, M. D. Prion diseases / M. D. Geschwind // CONTINUUM: Lifelong Learn. in Neurol. – 2015. – Vol. 6. – P. 1612–1638. https://doi.org/10.1212/CON.0000000000000251</mixed-citation><mixed-citation xml:lang="en">Geschwind M. D. Prion Diseases.CONTINUUM: Lifelong Learning in Neurology, 2015, vol. 6, pp. 1612–1638. https://doi.org/10.1212/CON.0000000000000251</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Knight, R. S. G. Prion diseases / R. S. G. Knight, R. G. Will // J. Neurol. Neurosurg. Psychiatry. – 2004. – Vol. 75, N 90001. – P. 36–42. https://doi.org/10.1136/jnnp.2004.036137</mixed-citation><mixed-citation xml:lang="en">Knight R. S. G., Will R. G. Prion diseases. Journal of Neurology, Neurosurgery and Psychiatry, 2004, vol. 75, no. 9001, pp. 36–42. https://doi.org/10.1136/jnnp.2004.036137</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Johnson, R. T. Prion diseases / R. T. Johnson // Lancet Neurol. – Vol. 4, N 10. – P. 635–642. https://doi.org/10.1016/ s1474-4422(05)70192-7</mixed-citation><mixed-citation xml:lang="en">Johnson R. T. Prion diseases.Lancet Neurology, vol. 4, no. 10, pp. 635–642. https://doi.org/10.1016/s1474-4422(05)70192-7</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Prusiner, S. B. Novel proteinaceous infectious particles cause scrapie / S. B. Prusiner // Science. – 1982. – Vol. 216, N 4542. – P. 136–144. https://doi.org/10.1126/science.6801762</mixed-citation><mixed-citation xml:lang="en">Prusiner S. B. Novel proteinaceous infectious particles cause scrapie. Science, 1982, vol. 216, no. 4542, pp. 136–144. https://doi.org/10.1126/science.6801762</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Cooperative structural transitions in amyloid-like aggregation / T. Steckmann [et al.] // J. Chem. Phys. – 2017. – Vol. 146, N 13. – P. 135103. https://doi.org/10.1063/1.4979516</mixed-citation><mixed-citation xml:lang="en">Steckmann T. Y., Bhandari R., Chapagain P. P., Gerstman B. S. Cooperative structural transitions in amyloid-like aggregation. Journal of Chemical Physics, 2017, vol. 146, no. 13, p. 135103. https://doi.org/10.1063/1.4979516</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Chou, P. Y. Prediction of the secondary structure of proteins from their amino acid sequence / P. Y. Chou, G. D. Fasman // Advances in enzymology and related areas of molecular biology / ed. A. Meister. – New York, 1978. – Vol. 47. – P. 45–148.</mixed-citation><mixed-citation xml:lang="en">Chou P. Y., Fasman G. D. Prediction of the secondary structure of proteins from their amino acid sequence.Advances in Enzymology and Related Areas of Molecular Biology. New York, 1978, vol. 47, pp. 145–148.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Стабильность альфа-спиральных и бета-структурных блоков в белках четырeх структурных классов / В. В. Побойнев [и др.] // Вес. Нац. акад. навук. Cер. бiял. навук. – 2018. – Т. 63, № 4. – С. 391–400.</mixed-citation><mixed-citation xml:lang="en">Poboinev V. V., Khrustalev V. V., Stozharov A. N., Khrustaleva Т. А. Stability of alpha-helical and beta-structural blocks in proteins of four structural classes. Vestsі Natsyyanal’nai akademіі navuk Belarusі. Seryya bіyalagіchnykh navuk = Proceedings of the National Academy of Sciences of Belarus. Biological series, 2018, vol. 63, no. 4, pp. 391–400 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Хрусталёв, В. В. Особенности аминокислотного состава бета-тяжей в белках различных структурных классов / В. В. Хрусталёв, В. В. Побойнев, Т. А. Хрусталёва // Фундаментальная наука в современной медицине : материалы сателл. дистанц. науч.-практ. конф. студентов и молодых ученых (Минск, 3 марта 2017 г.) / Белорус. гос. мед. ун-т ; под ред. А. В. Сикорского [и др.]. – Минск, 2017. – С. 331–336.</mixed-citation><mixed-citation xml:lang="en">Khrustalev V. V., Poboinev V. V., Khrustalevа Т. А. Features of amino acid composition of beta-strands in proteins of different structural classes.Fundamental’naya nauka v sovremennoi meditsine: materialy satellitnoi distantsionnoi nauchnoprakticheskoi konferentsii studentov i molodykh uchenykh (Minsk, 3 marta 2017 goda))[Fundamental science in modern medicine: materials of the satellite remote scientific-practical conference of students and young scientists (Minsk, March 3, 2017)]. Minsk, 2017, pp. 331–336 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">The Protein Data Bank / H. M. Berman [et al.] // Nucleic Acids Res. – 2000. – Vol. 28, N 1. – P. 235–242. https://doi.org/10.1093/nar/28.1.235</mixed-citation><mixed-citation xml:lang="en">Berman H. M., Westbrook J., Feng Z., Gilliland G., Bhat T. N., Weissig H., Shindyalov I. N., Bourne P. E. The Protein Data Bank. Nucleic Acids Research, 2000, vol. 28, no. 1, pp. 235–242. https://doi.org/10.1093/nar/28.1.235</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Aurora, R. Helix capping / R. Aurora, G. D. Rose // Protein Sci. – 1998. – Vol. 7, N 1. – P. 21–38. https://doi.org/10.1002/pro.5560070103</mixed-citation><mixed-citation xml:lang="en">Aurora R., Rose G. D. Helix capping. Protein Science, 1998, vol. 7, no. 1, pp. 21–38. https://doi.org/10.1002/ pro.5560070103</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Khrustalev, V. V. The influence of flanking secondary structures on amino acid content and typical lengths of 3/10 helices / V. V. Khrustalev, E. V. Barkovsky, T. A. Khrustaleva // Int. J. Proteomics. – 2014. – Vol. 2014. – Art. ID 360230. https://doi.org/10.1155/2014/360230</mixed-citation><mixed-citation xml:lang="en">Khrustalev V. V., Barkovsky E. V., Khrustaleva T. A. The influence of flanking secondary structures on amino acid content and typical lengths of 3/10 helices. International Journal of Proteomics, 2014, vol. 2014, art. ID 360230. https://doi.org/10.1155/2014/360230</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Побойнев, В. В. Особенности аминокислотного состава альфа-спиральных участков в полипептидных цепях белков различных структурных классов / В. В. Побойнев, В. В. Хрусталёв, Т. А. Хрусталёва // Вес. Нац. акад. навук. Cер. бiял. навук. – 2017. – № 4. – С. 58–66.</mixed-citation><mixed-citation xml:lang="en">Poboinev V. V., Khrustalev V. V., Khrustaleva Т. А. Features of amino acid composition of alpha-helical regions in proteins of different structural classes.Vestsі Natsyyanal’nai akademіі navuk Belarusі. Seryya bіyalagіchnykh navuk =Proceedings of the National Academy of Sciences of Belarus. Biological series, 2017, no. 4, pp. 58–66 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Baldwin, R. L. Is protein folding hierarchic? II. Folding intermediates and transition states / R. L. Baldwin, G. D. Rose // Trends Biochem. Sci. – 1999. – Vol. 24, N 5. – P. 77–83. https://doi.org/10.1016/s0968-0004(98)01345-0</mixed-citation><mixed-citation xml:lang="en">Baldwin R. L., Rose G. D. Is protein folding hierarchic? II. Folding intermediates and transition states. Trends in Biochemical Sciences, 1999, vol. 24, no. 5, pp. 77–83. https://doi.org/10.1016/s0968-0004(98)01345-0</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Abrusán, G. Alpha helices are more robust to mutations than beta strands / G. Abrusán, J. A. Marsh // PLoS Comput. Biol. – 2016. – Vol. 12, N 12. – P. e1005242. https://doi.org/10.1371/journal.pcbi.1005242</mixed-citation><mixed-citation xml:lang="en">Abrusán G., Marsh J. A. Alpha helices are more robust to mutations than beta strands. PLoS Computational Biology, 2016, vol. 12, no. 12, p. e1005242. https://doi.org/10.1371/journal.pcbi.1005242</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">An allosteric mechanism for activation of the kinase domain of epidermal growth factor receptor / X. Zhang [et al.] // Cell. – 2006. – Vol. 125, N 6. – P. 1137–1149. https://doi.org/10.1016/j.cell.2006.05.013</mixed-citation><mixed-citation xml:lang="en">Zhang X., Gureasko J., Shen K., Cole P. A., Kuriyan J. An allosteric mechanism for activation of the kinase domain of epidermal growth factor receptor. Cell, 2006, vol. 125, no. 6, pp. 1137–1149. https://doi.org/10.1016/j.cell.2006.05.013</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Dynamics of disulfide-bond disruption and formation in the thermal unfolding of ribonuclease A / P. Krupa [et al.] // J. Chem. Theory Comput. – 2017. – Vol. 13, N 11. – P. 5721–5730. https://doi.org/10.1021/acs.jctc.7b00724</mixed-citation><mixed-citation xml:lang="en">Krupa P., Sieradzan A. K., Mozolewska M. A., Li H., Liwo A., Scheraga H. A. Dynamics of disulfide-bond disruption and formation in the thermal unfolding of ribonuclease A.Journal of Chemical Theory and Computation, 2017, vol. 13, no. 11, pp. 5721–5730. https://doi.org/10.1021/acs.jctc.7b00724</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Разработка потенциальных ингибиторов ВИЧ-1 методами in silico клик-химии и молекулярного моделирования / А. М. Андрианов [и др.] // Мат. биология и биоинформатика. – 2018. – Т. 13, № 2. – С. 507–525.</mixed-citation><mixed-citation xml:lang="en">Andrianov A. M., Nikolaev G. I., Kashin I. A., Tuzikov A. V. Development of potential inhibitors of HIV-1 in silico methods of click-chemistry and molecular modeling. Matematicheskaya biologiya i bioinformatika [Mathematical biology and bioinformatics], 2018, vol. 13, no. 2, pp. 507–525 (in Russian).</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
