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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Immunology</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Immunology</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский иммунологический журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1028-7221</issn><issn publication-format="electronic">2782-7291</issn><publisher><publisher-name xml:lang="en">Russian Society of Immunology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">80</article-id><article-id pub-id-type="doi">10.7868/S1028722118010070</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Unknown</subject></subj-group></article-categories><title-group><article-title xml:lang="en">A CASE OF CVID PATIENT: EXOME SEQUENCING REVEALED HETEROZYGOUS MISSENSE MUTATION E1021K IN THE PIK3CD GENE</article-title><trans-title-group xml:lang="ru"><trans-title>СЛУЧАЙ ПАЦИЕНТА С ДИАГНОЗОМ “ОВИН?”: ВЫЯВЛЕНИЕ ГЕТЕРОЗИГОТНОЙ МИССЕНС-МУТАЦИИ E1021K В ГЕНЕ PIK3CD С ПОМОЩЬЮ ЭКЗОМНОГО СЕКВЕНИРОВАНИЯ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gordukova</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Гордукова</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>biologist of clinical diagnostic laboratory </p><p>123317, Moscow, 29 Shmitovsky</p></bio><bio xml:lang="ru"><p>биолог, клиническая диагностическая лаборатория</p><p>123317, г. Москва, Шмитовский проезд, 29</p></bio><email>ma.gordukova@dgkb-9.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kechin</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Кечин</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>laboratory technician in Laboratory of Pharmacogenomics Institute of Chemical Biology and Fundamental Medicine SB RAS</p><p>Novosibirsk</p></bio><bio xml:lang="ru"><p>инженер в лаборатории фармакогеномики Института химической биологии и фундаментальной медицины СО РАН</p><p>г. Новосибирск</p></bio><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zimin</surname><given-names>S. B.</given-names></name><name xml:lang="ru"><surname>Зимин</surname><given-names>С. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>head of the Immunopathology department </p><p>Moscow</p></bio><bio xml:lang="ru"><p>заведующий отделением Иммунопатологии </p><p>г. Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Serpokrylova</surname><given-names>I. Yu.</given-names></name><name xml:lang="ru"><surname>Серпокрылова</surname><given-names>И. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>laboratory technician in Laboratory of Pharmacogenomics Institute of Chemical Biology and Fundamental Medicine SB RAS </p><p>Novosibirsk</p></bio><bio xml:lang="ru"><p>инженер</p><p>г. Новосибирск</p></bio><xref ref-type="aff" rid="aff3"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Filipenko</surname><given-names>M. L.</given-names></name><name xml:lang="ru"><surname>Филипенко</surname><given-names>М. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD, head of the Laboratory of Pharmacogenomics Institute of Chemical Biology and Fundamental Medicine SB RAS </p><p>Novosibirsk</p></bio><bio xml:lang="ru"><p>к.б.н., заведующий лабораторией фармакогеномики Института химической биологии и фундаментальной медицины СО РАН</p><p>г. Новосибирск</p></bio><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Prodeus</surname><given-names>A. P.</given-names></name><name xml:lang="ru"><surname>Продеус</surname><given-names>А. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, professor, pediatrician-immunologist, chief specialist in pediatrics, director of the University Clinic of Children’s Diseases</p><p>Moscow</p></bio><bio xml:lang="ru"><p>д.м.н., профессор, врач педиатр-иммунолог, главный специалист по педиатрии, директор университетской клиники РНИМУ им Н.И. Пирогова</p><p>г. Москва</p></bio><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff5"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Moscow City Paediatric Hospital № 9 named by Speransky</institution></aff><aff><institution xml:lang="ru">ГБУЗ “ДГКБ № 9 им. Г.Н. Сперанского ДЗМ”</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Novosibirsk State Universiry</institution></aff><aff><institution xml:lang="ru">Новосибирский национальный исследовательский государственный университет</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Institute of Chemical Biology and Fundamental Medicine SB RAS</institution></aff><aff><institution xml:lang="ru">Институт химической биологии и фундаментальной медицины СО РАН</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">BIOSSET Ltd., Novosibirsk</institution></aff><aff><institution xml:lang="ru">ООО Биоссет, Новосибирск</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">University Clinic of Children’s Diseases of Pirogov Russian National Research Medical University (RNRMU)</institution></aff><aff><institution xml:lang="ru">Университетская клиника детских болезней РНИМУ им Н.И. Пирогова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2018-01-15" publication-format="electronic"><day>15</day><month>01</month><year>2018</year></pub-date><volume>21</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>54</fpage><lpage>64</lpage><history><date date-type="received" iso-8601-date="2020-04-15"><day>15</day><month>04</month><year>2020</year></date><date date-type="accepted" iso-8601-date="2020-04-15"><day>15</day><month>04</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2018, Gordukova M.A., Kechin A.A., Zimin S.B., Serpokrylova I.Y., Filipenko M.L., Prodeus A.P.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2018, Гордукова М.А., Кечин А.А., Зимин С.Б., Серпокрылова И.Ю., Филипенко М.Л., Продеус А.П.</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="en">Gordukova M.A., Kechin A.A., Zimin S.B., Serpokrylova I.Y., Filipenko M.L., Prodeus A.P.</copyright-holder><copyright-holder xml:lang="ru">Гордукова М.А., Кечин А.А., Зимин С.Б., Серпокрылова И.Ю., Филипенко М.Л., Продеус А.П.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://rusimmun.ru/jour/article/view/80">https://rusimmun.ru/jour/article/view/80</self-uri><abstract xml:lang="en"><p>To establish a definitive molecular diagnosis for the case of a 17-Year-Old Boy (NS) with a history of CVID, recurrent pulmonary infections, chronic EBV viremia, lymphadenopathy and a decrease of IgG3 and luck of IgG4 who presented for follow-up in the immunodeficiency clinic whole exome capture and next-generation sequencing were performed. We showed a presence of heterozygous missense mutation E1021K in the PIK3CD gene that encodes p110d (c.3061G &gt; A [p.E1021K]). The mutation was verified by Sanger sequencing and not found in parents genomic DNA, thus classifying this E1021K mutation as <italic>de novo</italic>. Several additional mutations relevant to immune system pathways were found and confirmed by Sanger sequencing including TLR3 p.L412F, TNFRSF1A p.R121Q (rs4149584), associated with periodic disease.</p></abstract><trans-abstract xml:lang="ru"><p>Полноэкзомное секвенирование было проведено с целью установления окончательного диагноза 17-летнему мальчику (НС), имевшему в анамнезе признаки общей вариабельной иммунной недостаточности (ОВИН), рецидивирующие легочные инфекции, хроническую виремию ЭБВ, лимфаденопатию, снижение субкласса IgG3 и отсутствие субкласса IgG4, многократно госпитализированного в отделение иммунопатологии многопрофильного стационара. Мы показали наличие гетерозиготной миссенс-мутации E1021K в гене PIK3CD, кодирующем p110d (c.3061G &gt; A [p.E1021K]). Присутствие данной мутации в геноме пациента было подтверждено с помощью секвенирования по Сэнгеру, а ее отсутствие в образцах ДНК от родителей пациента свидетельствует о возникновении этой мутации de novo. Другие мутации в генах, задействованных в функционировании иммунной системы, также были подтверждены секвенированием по Сэнгеру, включая TLR3 p.L412F, TNFRSF1A p.R121Q (rs4149584), ассоциированные с периодической болезнью.</p></trans-abstract><kwd-group xml:lang="en"><kwd>whole exome sequencing</kwd><kwd>CVID</kwd><kwd>PID</kwd><kwd>NGS</kwd><kwd>PIK3CD</kwd><kwd>p1</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>экзом</kwd><kwd>секвенирование</kwd><kwd>общая вариабельная иммунная недостаточность (ОВИН)</kwd><kwd>первичные иммунодефициты (ПИД)</kwd><kwd>NGS</kwd><kwd>PIK3CD</kwd><kwd>p110d</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа поддержана в рамках проекта “Развитие методов персонализированной медицины” (№ 0309-2016-0007).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1. 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