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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">ssmu</journal-id><journal-title-group><journal-title xml:lang="ru">Бюллетень сибирской медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Siberian Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-0363</issn><issn pub-type="epub">1819-3684</issn><publisher><publisher-name>Siberian State Medical University, the Ministry of Healthcare of the Russian Federation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20538/1682-0363-2024-2-183-189</article-id><article-id custom-type="elpub" pub-id-type="custom">ssmu-5675</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>СЛУЧАЙ ИЗ КЛИНИЧЕСКОЙ ПРАКТИКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL CASES</subject></subj-group></article-categories><title-group><article-title>Функциональный анализ новой мутации сплайсинга c.2067+2T&amp;gt;G в гене MYBPC3 при гипертрофической кардиомиопатии</article-title><trans-title-group xml:lang="en"><trans-title>Functional analysis of a new splicing mutation in the MYBPC3 gene in hypertrophic cardiomyopathy</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9789-9555</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Салахов</surname><given-names>Р. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Salakhov</surname><given-names>R. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Салахов Рамиль Ринатович – канд. мед. наук, науч. сотрудник, лаборатория популяционной генетики </p><p>634050, г. Томск, Набережная реки Ушайки, 10</p></bio><bio xml:lang="en"><p>10, Ushayka Embankment, Tomsk, 634050</p></bio><email xlink:type="simple">ramil.salakhov@medgenetics.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7692-9954</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Голубенко</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Golubenko</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Голубенко Мария Владимировна – канд. биол. наук, ст. науч. сотрудник, лаборатория популяционной генетики </p><p>634050, г. Томск, Набережная реки Ушайки, 10</p></bio><bio xml:lang="en"><p>10, Ushayka Embankment, Tomsk, 634050</p></bio><email xlink:type="simple">maria-golubenko@medgenetics.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7293-3438</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Скоблов</surname><given-names>М. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Skoblov</surname><given-names>M. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Скоблов Михаил Юрьевич – канд. биол. наук, зав. лабораторией функциональной геномики </p><p>115522, г. Москва, ул. Москворечье, 1</p></bio><bio xml:lang="en"><p>1, Moskvorechye Str., Moscow 115522</p></bio><email xlink:type="simple">mskoblov@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3839-3543</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савченко</surname><given-names>Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Savchenko</surname><given-names>R. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Савченко Рената – канд. биол. наук, науч. сотрудник, лаборатория геномики орфанных болезней </p><p>634050, г. Томск, Набережная реки Ушайки, 10</p></bio><bio xml:lang="en"><p>10, Ushayka Embankment, Tomsk, 634050</p></bio><email xlink:type="simple">renata.savchenko@medgenetics.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7969-7020</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Валиахметов</surname><given-names>Н. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Valiakhmetov</surname><given-names>N. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Валиахметов Наиль Раушанович – мл. науч. сотрудник, лаборатория геномики орфанных болезней </p><p>634050, г. Томск, Набережная реки Ушайки, 10</p></bio><bio xml:lang="en"><p>10, Ushayka Embankment, Tomsk, 634050</p></bio><email xlink:type="simple">valiakhmetov.nail@medgenetics.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3081-9477</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Павлюкова</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Pavlyukova</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Павлюкова Елена Николаевна – д-р мед. наук, профессор, зав. отделением атеросклероза и хронической ишемической болезни сердца </p><p>634012, г. Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>111a, Kievskaya Str., Tomsk, 634012</p></bio><email xlink:type="simple">pavluk@cardio-tomsk.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0673-4094</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Назаренко</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Nazarenko</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Назаренко Мария Сергеевна – д-р мед. наук, руководитель лаборатории популяционной генетики </p><p>634012, г. Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>10, Ushayka Embankment, Tomsk, 634050</p></bio><email xlink:type="simple">maria.nazarenko@medgenetics.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт медицинской генетики (НИИ МГ), Томский национальный исследовательский медицинский центр (НИМЦ) Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute of Medical Genetics, Tomsk National Research Medical Center (NRMC), Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Медико-генетический научный центр (МГНЦ) им. акад. Н.П. Бочкова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Center of Medical Genetics</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Научно-исследовательский институт (НИИ) кардиологии, Томский национальный исследовательский медицинский центр (НИМЦ) Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cardiology Research Institute, Tomsk National Research Medical Center (NRMC), Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Научно-исследовательский институт (НИИ) кардиологии, Томский национальный исследовательский медицинский центр (НИМЦ) Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute of Medical Genetics, Tomsk National Research Medical Center (NRMC), Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>11</day><month>07</month><year>2024</year></pub-date><volume>23</volume><issue>2</issue><fpage>183</fpage><lpage>189</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Салахов Р.Р., Голубенко М.В., Скоблов М.Ю., Савченко Р.R., Валиахметов Н.Р., Павлюкова Е.Н., Назаренко М.С., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Салахов Р.Р., Голубенко М.В., Скоблов М.Ю., Савченко Р., Валиахметов Н.Р., Павлюкова Е.Н., Назаренко М.С.</copyright-holder><copyright-holder xml:lang="en">Salakhov R.R., Golubenko M.V., Skoblov M.Y., Savchenko R.R., Valiakhmetov N.R., Pavlyukova E.N., Nazarenko M.S.</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://bulletin.ssmu.ru/jour/article/view/5675">https://bulletin.ssmu.ru/jour/article/view/5675</self-uri><abstract><p>Цель – исследование патогенного эффекта варианта в сайте сплайсинга MYBPC3 у пациента с гипертрофической кардиомиопатией. Материалы и методы. Исследование проведено с использованием образца ДНК пациентки с гипертрофической кардиомиопатией, у которой был выявлен ранее не описанный вариант в донорном сайте сплайсинга интрона 21. Применены методы конструирования и клонирования мини-генов (вектор pSpl3- Flu2-TKdel), трансфекции культуры клеток человека (HEK293T), с последующим выделением мРНК, получением кДНК, ПЦР участка мини-гена, содержащего анализируемый фрагмент, электрофореза в агарозном геле, секвенирования по Сэнгеру. Результаты. Вариант chr11:47339649-A-C (hg38), нарушающий донорный сайт сплайсинга в интроне 21 (NM_000256.3: c.2067+2T&gt;G), был выявлен у пациентки 23 лет с обструктивной формой гипертрофической кардиомиопатии. Для прямого анализа влияния этого варианта на сплайсинг был получен вектор, содержащий экзон 21, интрон 21, экзон 22, частично интроны 20 и 22 MYBPC3. Сравнение мРНК, полученных для мини-генов, содержащих или несодержащих исследуемый вариант, показало, что замена chr11:47339649-A-C приводит к пропуску экзонов 21 и 22 в процессе сплайсинга. Заключение. В результате исследования установлена функциональная значимость ранее не описанного варианта c.2067+2T&gt;G в гене MYBPC3, приводящего к нарушению механизма сплайсинга мРНК у пациента с гипертрофической кардиомиопатией. Данный вариант может быть классифицирован как патогенный.</p></abstract><trans-abstract xml:lang="en"><p>Aim. To study the pathogenic effect in the MYBPC3 splice-site variant in the patient with hypertrophic cardiomyopathy. Materials and methods. The study was conducted using a DNA sample obtained from a patient with hypertrophic cardiomyopathy, in whom a previously undescribed variant was identified in the splice donor site of intron 21. The methods used included constructing and cloning of minigenes (vector pSpl3-Flu2-TKdel) and transfection of a human cell culture (HEK293T), followed by isolation of mRNA, production of cDNA, PCR of the minigene region containing the analyzed fragment, agarose gel electrophoresis, and Sanger sequencing. Results. The chr11:47339649-A-C (hg38) variant, disrupting the splice donor site in intron 21 (NM_000256.3: c.2067+2T&gt;G), was identified in the 23-year-old patient with obstructive hypertrophic cardiomyopathy. To directly analyze the effect of this variant on splicing, a vector containing exon 21, intron 21, exon 22, and partially introns 20 and 22 of the MYBPC3 gene was obtained. A comparison of mRNAs from the minigenes containing / not containing the variant showed that the chr11:47339649-A-C substitution led to exon 21 and exon 22 skipping during splicing. Conclusion. The study established the functional significance of the previously undescribed variant c.2067+2T&gt;G in the MYBPC3 gene, resulting in disruption of the mRNA splicing mechanism in the patient with hypertrophic cardiomyopathy. This variant can be classified as pathogenic.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гипертрофическая кардиомиопатия</kwd><kwd>MYBPC3</kwd><kwd>мини-гены</kwd><kwd>сплайсинг</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hypertrophic cardiomyopathy</kwd><kwd>MYBPC3</kwd><kwd>minigene</kwd><kwd>splicing</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда № 22-24- 01164, https://rscf.ru/project/22-24-01164/</funding-statement><funding-statement xml:lang="en">The study was supported by the Russian Science Foundation Grant No. 22-24-01164, https:// rscf.ru/project/22-24-01164/</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Maron B.J., Towbin J.A., Thiene G., Antzelevitch C., Corrado D., Arnett D. et al. 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