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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">medgen</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская генетика</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Genetics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7998</issn><publisher><publisher-name>Publishing House «Genius Media» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25557/2073-7998.2022.11.36-39</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-2196</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>КРАТКОЕ СООБЩЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BRIEF REPORT</subject></subj-group></article-categories><title-group><article-title>Алгоритм молекулярной диагностики наследственной патологии, ассоциированной с моногенными CNV</article-title><trans-title-group xml:lang="en"><trans-title>Algorithm for molecular diagnosis of hereditary pathology associated with single-gene CNVs</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>Кашеварова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kashevarova</surname><given-names>A. A.</given-names></name></name-alternatives><email xlink:type="simple">anna.kashevarova@medgenetics.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>Лопаткина</surname><given-names>М. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Lopatkina</surname><given-names>M. E.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Васильева</surname><given-names>О. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasilyeva</surname><given-names>O. Yu.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Федотов</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedotov</surname><given-names>D. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Фонова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fonova</surname><given-names>E. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Сивцев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sivtsev</surname><given-names>A. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Зарубин</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zarubin</surname><given-names>A. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Лебедев</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Lebedev</surname><given-names>I. N.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт медицинской генетики, Томский национальный исследовательский медицинский центр Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute of Medical Genetics, Tomsk National Research Medical Center of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>13</day><month>01</month><year>2023</year></pub-date><volume>21</volume><issue>11</issue><fpage>36</fpage><lpage>39</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кашеварова А.А., Лопаткина М.Е., Васильева О.Ю., Федотов Д.А., Фонова Е.А., Сивцев А.А., Зарубин А.А., Лебедев И.Н., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Кашеварова А.А., Лопаткина М.Е., Васильева О.Ю., Федотов Д.А., Фонова Е.А., Сивцев А.А., Зарубин А.А., Лебедев И.Н.</copyright-holder><copyright-holder xml:lang="en">Kashevarova A.A., Lopatkina M.E., Vasilyeva O.Y., Fedotov D.A., Fonova E.A., Sivtsev A.A., Zarubin A.A., Lebedev I.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://www.medgen-journal.ru/jour/article/view/2196">https://www.medgen-journal.ru/jour/article/view/2196</self-uri><abstract><p>Моногенные вариации числа копий участков ДНК (CNV) у пациентов с нарушением психомоторного развития выявляются с частотой до 10%. Исход данного типа аберраций более очевиден, если затронут дозозависимый ген, ассоциированный с заболеванием. Однако патологический фенотип может формироваться в результате гемизиготизации рецессивного варианта нуклеотидной последовательности на интактном гомологе или при сочетании CNV и нуклеотидного варианта (компаундная гетерозигота). Нами разработан и апробирован для 1176 пациентов алгоритм молекулярной диагностики наследственной патологии, ассоциированной с моногенными CNV. Патогенные, вероятно патогенные и структурные хромосомные аберрации с неопределенной клинической значимостью выявлены у 478 пробандов (40,6%), в том числе моногенные CNV - у 60 пациентов (5,1%). Среди 32 моногенных аберраций, присутствие которых подтверждено методом ПЦР в реальном времени, большая часть была унаследована от здоровых родителей (23 CNV или 72%). Семи пациентам проведено секвенирование. Ни одного патогенного варианта нуклеотидной последовательности на интактном гомологе выявлено не было, однако в ряде случаев обнаружены не описанные ранее варианты неопределенного значения в генах, не вовлеченных в CNV.</p></abstract><trans-abstract xml:lang="en"><p>Single-gene copy number variations (CNVs) in patients with impaired psychomotor development are detected with a frequency of up to 10%. The outcome of this type of aberration is more obvious if a dosage-sensitive gene associated with the disease is affected. However, a pathological phenotype can also be formed as a result of hemizygotization of a recessive nucleotide sequence variant from an intact homologue or by combining CNV and a nucleotide variant (compound heterozygote). We have developed and tested for 1176 patients an algorithm for the molecular diagnosis of hereditary pathology associated with single-gene CNV. Pathogenic, likely pathogenic and structural chromosomal aberrations with uncertain clinical significance were detected in 478 probands (40.6%), including monogenic CNV in 60 patients (5.1%). Among 32 single-gene aberrations, the presence of which was confirmed by real-time PCR, most were inherited from healthy parents (23 CNV or 72%). Seven patients underwent sequencing. Not a single pathogenic nucleotide sequence variant was identified on the intact homologue, but in some cases, previously unreported variants of uncertain significance were found in genes not involved in CNV.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>моногенные вариации числа копий участков ДНК</kwd><kwd>матричная сравнительная геномная гибридизация</kwd><kwd>ПЦР в реальном времени</kwd><kwd>секвенирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>single-gene copy number variations</kwd><kwd>array comparative genome hybridization</kwd><kwd>real-time PCR</kwd><kwd>sequencing</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">Boone P.M., Bacino C.A., Shaw C.A. et al. Detection of clinically relevant exonic copy-number changes by array CGH. Hum Mutat. 2010;31(12):1326-42.</mixed-citation><mixed-citation xml:lang="en">Boone P.M., Bacino C.A., Shaw C.A. et al. 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