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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Ecological genetics</journal-id><journal-title-group><journal-title xml:lang="en">Ecological genetics</journal-title><trans-title-group xml:lang="ru"><trans-title>Экологическая генетика</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1811-0932</issn><issn publication-format="electronic">2411-9202</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">18634</article-id><article-id pub-id-type="doi">10.17816/ecogen18634</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Human ecological genetics</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экологическая генетика человека</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Polymorphism of GC gene, encoding vitamin D binding protein, in aboriginal populations of Siberia</article-title><trans-title-group xml:lang="ru"><trans-title>Полиморфизм гена GC, кодирующего витамин D-связывающий белок, у коренного населения Cибири</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0304-0652</contrib-id><name-alternatives><name xml:lang="en"><surname>Malyarchuk</surname><given-names>Boris A.</given-names></name><name xml:lang="ru"><surname>Малярчук</surname><given-names>Борис Аркадьевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Biol. Sci., Head of Genetics Laboratory</p></bio><bio xml:lang="ru"><p>д-р биол. наук, заведующий лабораторией генетики</p></bio><email>malyarchuk@ibpn.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Biological Problems of the North, Far Eastern Branch of Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Федеральное государственное бюджетное учреждение науки «Институт биологических проблем Севера» Дальневосточного отделения Российской академии наук</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2020-04-14" publication-format="electronic"><day>14</day><month>04</month><year>2020</year></pub-date><pub-date date-type="pub" iso-8601-date="2020-07-08" publication-format="electronic"><day>08</day><month>07</month><year>2020</year></pub-date><volume>18</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>243</fpage><lpage>250</lpage><history><date date-type="received" iso-8601-date="2019-12-12"><day>12</day><month>12</month><year>2019</year></date><date date-type="accepted" iso-8601-date="2020-04-13"><day>13</day><month>04</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2020, Malyarchuk B.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2020, Малярчук Б.А.</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="en">Malyarchuk B.A.</copyright-holder><copyright-holder xml:lang="ru">Малярчук Б.А.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2021-05-14"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.eco-vector.com/ecolgenet/article/view/18634">https://journals.eco-vector.com/ecolgenet/article/view/18634</self-uri><abstract xml:lang="en"><p>The analysis of the nucleotide sequences of exons and adjacent non-coding regions of the <italic>GC</italic> gene in 108 representatives of various ethnic groups of aboriginal population of Siberia was carried out. Polymorphism was found in four nucleotide positions: non-synonymous substitutions at the rs4588 and rs7041 loci, a synonymous substitution at the rs4752 locus, and a replacement in the non-coding region at the rs3733359 locus. Seven haplotypes of the <italic>GC</italic> gene were identified. Of these, 4 haplotypes encode the Gc1F isoform, 2 haplotypes encode the Gc1S isoform, and 1 haplotype encodes the Gc2 isoform. Between-regional differences were found in the distribution of variants of the <italic>GC</italic> gene: in the northeast and in the central part of Siberia, the highest prevalence of the Gc1F and Gc1F/Gc1F variants is observed, and in the south and west of Siberia, the Gc2, Gc1S/Gc2 and Gc2/Gc2 variants are most common. In the case of the <italic>GC</italic> gene, gene-environment interactions are apparently aimed at creating a balance between the activity of vitamin D-binding protein and the level of 25-hydroxyvitamin D in the blood serum.</p></abstract><trans-abstract xml:lang="ru"><p>Проведен анализ нуклеотидных последовательностей экзонов и прилегающих к ним некодирующих участков гена <italic>GC</italic> у 108 представителей различных этнических групп коренного населения Сибири. Полиморфизм обнаружен в четырех нуклеотидных позициях: несинонимичные замены в локусах rs4588 и rs7041, синонимичная замена в локусе rs4752 и замена в некодирующей области в локусе rs3733359. Выявлено семь гаплотипов гена <italic>GC</italic>. Из них 4 гаплотипа кодируют изоформу Gc1F, 2 гаплотипа — изоформу Gc1S и 1 гаплотип — изоформу Gc2. Обнаружены межрегиональные различия по распределению вариантов гена <italic>GC</italic>: на северо-востоке и в центральной части Сибири наблюдается самая высокая распространенность вариантов Gc1F и Gc1F/Gc1F, а на юге и западе Сибири чаще всего распространены варианты Gc2, Gc1S/Gc2 и Gc2/Gc2. По всей видимости, в случае гена <italic>GC</italic> ген-средовые взаимодействия направлены на формирование баланса между активностью витамин D-связывающего белка и уровнем 25-гидроксивитамина D в сыворотке крови.</p></trans-abstract><kwd-group xml:lang="en"><kwd>genetic polymorphism</kwd><kwd>vitamin D binding protein</kwd><kwd>gene GC</kwd><kwd>human populations</kwd><kwd>Siberia</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>генетический полиморфизм</kwd><kwd>витамин D-связывающий белок</kwd><kwd>ген GC</kwd><kwd>популяции человека</kwd><kwd>Сибирь</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Козлов А.И., Атеева Ю.А. Витамин D и особенности питания различных групп коми // Вестник Московского университета. Серия XXIII. Антропология. – 2011. – № 4. – С. 25–34. [Kozlov AI, Ateeva JuA. Vitamin D i osobennosti pitaniya razlichnykh grupp komi. Vestnik Moskovskogo universiteta. Seriya 23. 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