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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">10.25557/2073-7998.2025.08.134-136</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-3150</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>Два «лица» DNMT3A-ассоциированной патологии</article-title><trans-title-group xml:lang="en"><trans-title>Two faces of DNMT3A-associated pathology</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>Шаронова</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sharonova</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>194100; ул. Литовская, д. 2; Санкт-Петербург</p></bio><bio xml:lang="en"><p>194100; 2, Litovskaya st.; Saint Petersburg</p></bio><email xlink:type="simple">okosienkova@inbox.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>Валякина</surname><given-names>К. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Valyakina</surname><given-names>K. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>194100; ул. Литовская, д. 2; Санкт-Петербург</p></bio><bio xml:lang="en"><p>194100; 2, Litovskaya st.; Saint Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Корзун</surname><given-names>П. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Korzun</surname><given-names>P. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>194100; ул. Литовская, д. 2; Санкт-Петербург</p></bio><bio xml:lang="en"><p>194100; 2, Litovskaya st.; Saint Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Малышева</surname><given-names>К. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Malysheva</surname><given-names>K. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>194100; ул. Литовская, д. 2; Санкт-Петербург</p></bio><bio xml:lang="en"><p>194100; 2, Litovskaya st.; Saint Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лаптиев</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Laptiev</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>194100; ул. Литовская, д. 2; Санкт-Петербург</p></bio><bio xml:lang="en"><p>194100; 2, Litovskaya st.; Saint Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Суспицын</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Suspitsin</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>194100; ул. Литовская, д. 2; Санкт-Петербург</p></bio><bio xml:lang="en"><p>194100; 2, Litovskaya st.; Saint Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный педиатрический медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint Petersburg State Pediatric Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>19</day><month>10</month><year>2025</year></pub-date><volume>24</volume><issue>8</issue><fpage>134</fpage><lpage>136</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шаронова О.С., Валякина К.Е., Корзун П.Р., Малышева К.С., Лаптиев С.А., Суспицын Е.Н., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Шаронова О.С., Валякина К.Е., Корзун П.Р., Малышева К.С., Лаптиев С.А., Суспицын Е.Н.</copyright-holder><copyright-holder xml:lang="en">Sharonova O.S., Valyakina K.E., Korzun P.R., Malysheva K.S., Laptiev S.A., Suspitsin E.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/3150">https://www.medgen-journal.ru/jour/article/view/3150</self-uri><abstract><p>   Синдромальные нарушения нервно-психического развития, ассоциированные с мутациями в гене DNMT3A, описаны относительно недавно. Примечательно, что с дефектами DNMT3A связаны 2 противоположных фенотипа: синдром Таттон-Браун-Рахман (с макроцефалией и высокорослостью) и исключительно редкий синдром Хайна-Спраула-Джексона (с микроцефалией и низкорослостью). Нами наблюдались двое пациентов, соответствующих клиническим признакам этих синдромов; методом полноэкзомного секвенирования обнаружены редкие варианты гена DNMT3A. У пациента с синдромом Хайна-Спраула-Джексона выявлены ранее не описанные клинические проявления.</p></abstract><trans-abstract xml:lang="en"><p>   The syndromic disorders of neuropsychiatric development associated with DNMT3A mutations have been described relatively recently. Interestingly, two dissimilar phenotypes are associated with DNMT3A defects: Tatton-Brown-Rahman syndrome (with macrocephaly and tall stature) and an extremely rare Hein-Sproul-Jackson syndrome (with microcephaly and short stature). We have identified two patients corresponding to the clinical signs of these syndromes. Whole-exome sequencing revealed rare variants of the DNMT3A gene. Patient with Hein-Sproul-Jackson syndrome demonstrated previously undescribed clinical features.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>задержка психоречевого развития</kwd><kwd>ген DNMT3A</kwd><kwd>мутации de novo</kwd><kwd>синдром Хейн-Спраула-Джексона</kwd><kwd>синдром Таттон-Браун-Рахман</kwd></kwd-group><kwd-group xml:lang="en"><kwd>developmental delay</kwd><kwd>DNMT3A</kwd><kwd>de novo mutations</kwd><kwd>Hein-Sproul-Jackson syndrome</kwd><kwd>Tatton-Brown-Rahman syndrome</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование поддержано грантом РНФ 24-45-00067</funding-statement><funding-statement xml:lang="en">The research was supported by the Russian Science Foundation grant 24-45-00067</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">Heyn P., Logan C.V., Fluteau A., et al. 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