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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">10.25557/2073-7998.2018.11.48-52</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-604</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>КЛИНИЧЕСКИЕ СЛУЧАИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL CASE</subject></subj-group></article-categories><title-group><article-title>Семейный случай дилатационной кардиомиопатии, ассоциированной с мутацией в гене фактора сплайсинга RBM20</article-title><trans-title-group xml:lang="en"><trans-title>Family dilated cardiomyopathy case associated with mutation in the splicing factor gene RBM20</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>Сивицкая</surname><given-names>Л. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Sivitskaya</surname><given-names>L. N.</given-names></name></name-alternatives><email xlink:type="simple">cytoplasmic@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>Вайханская</surname><given-names>Т. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Vaikhanskaya</surname><given-names>T. G.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</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>Левданский</surname><given-names>О. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Liaudanski</surname><given-names>A. D.</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>Курушко</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kurushka</surname><given-names>T. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</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>Даниленко</surname><given-names>Н. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Danilenko</surname><given-names>N. G.</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>Институт генетики и цитологии Национальной Академии Наук Беларуси</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Minsk, Belarus</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Республиканский научно-практический центр «Кардиология»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Minsk, Belarus</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>01</day><month>11</month><year>2018</year></pub-date><volume>17</volume><issue>11</issue><fpage>48</fpage><lpage>52</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сивицкая Л.Н., Вайханская Т.Г., Левданский О.Д., Курушко Т.В., Даниленко Н.Г., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Сивицкая Л.Н., Вайханская Т.Г., Левданский О.Д., Курушко Т.В., Даниленко Н.Г.</copyright-holder><copyright-holder xml:lang="en">Sivitskaya L.N., Vaikhanskaya T.G., Liaudanski A.D., Kurushka T.V., Danilenko N.G.</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/604">https://www.medgen-journal.ru/jour/article/view/604</self-uri><abstract><p>В статье представлена семья, в которой на протяжении двух поколений регистрировались случаи дилатационной кардиомиопатии (ДКМП). Целью исследования было определить генетическую причину развития этого заболевания. Материалом служили образцы ДНК, полученные из буккального эпителия пробанда и членов семьи. Методы: клинические и лабораторные методы для установления и верификации диагноза, NGS и прямое секвенирование для определения патогенного варианта, вызвавшего развитие кардиомиопатии. Результаты: выявлена гетерозиготная мутация c.1901G&gt;A в гене фактора альтернативного сплайсинга RBM20 (10q25.2), приводящая к замещению высоко консервативного аргининового остатка на глутаминовый в RS-домене белка - p.R634Q. Ее носительство косегрегировало с фенотипом ДКМП у членов семьи. Мутации в этом гене приводят к нарушению альтернативного сплайсинга и образованию нетипичных вариантов зрелой мРНК. Приведены публикации о роли RBM20 в регулировании сплайсинга генов, экспрессируемых в сердечной мышце. Выводы: вариант c.1901G&gt;A в гене RBM20 следует рассматривать как патогенный. Молекулярно-генетический анализ позволил уточнить диагноз пробанда и ее сына - ДКМП 1DD.</p></abstract><trans-abstract xml:lang="en"><p>The article presents a family with cases of dilated cardiomyopathy (DCM) registered for two generations. The study aim was to determine the genetic cause of the disease development. Materials: DNA samples obtained from the buccal epithelium of the proband and family members. Methods: clinical and laboratory methods for diagnosis establishing and verifying, NGS and direct sequencing for the definition of the pathogenic variant leading to the cardiomyopathy. Results: a heterozygous mutation c.1901G&gt; A was identified in the gene of the alternative splicing factor RBM20 (10q25.2), leading to the replacement of the highly conserved arginine residue by glutamine in the RS domain of the protein - p.R634Q. Its carriage co-segregated with the DCM phenotype in family members. Mutations in this gene lead to the alternative splicing disruption and the formation of atypical mRNA variants. Published articles about the splicing regulation of genes expressed in the cardiac muscle by RBM20 are reviewed. Conclusion: variant c.1901G&gt;A in the RBM20 gene should be considered as pathogenic. The molecular genetic analysis specified the diagnosis of the proband and her son - DCM 1DD.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>дилатационная кардиомиопатия</kwd><kwd>RBM20</kwd><kwd>альтернативный сплайсинг</kwd><kwd>NGS</kwd><kwd>dilated cardiomyopathy</kwd><kwd>RBM20</kwd><kwd>alternative splicing</kwd><kwd>NGS</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">Beqqali A. Alternative splicing in cardiomyopathy. Biophys Rev. 2018;10(4):1061-1071.</mixed-citation><mixed-citation xml:lang="en">Beqqali A. Alternative splicing in cardiomyopathy. 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