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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">medecol</journal-id><journal-title-group><journal-title xml:lang="ru">Медицина и экология</journal-title><trans-title-group xml:lang="en"><trans-title>Medicine and ecology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2305-6045</issn><issn pub-type="epub">2305-6053</issn><publisher><publisher-name>Карагандинский медицинский университет</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">medecol-273</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>ТЕОРЕТИЧЕСКАЯ И ЭКСПЕРИМЕНТАЛЬНАЯ МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>THEORETICAL AND EXPERIMENTAL MEDICINE</subject></subj-group></article-categories><title-group><article-title>К ПРОБЛЕМЕ ЧРЕЗКЛЕТОЧНЫХ ТРАНСПОРТНЫХ БЕЛКОВ, ПРИМЕНЯЕМЫХ В МЕДИЦИНСКОЙ ПРАКТИКЕ</article-title><trans-title-group xml:lang="en"><trans-title>SUMMARY OF DATA ON TRANSCELLULAR TRANSPORT PROTEINS INVOLVED IN MEDICAL PRACTICE</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>Ческа</surname><given-names>А. .</given-names></name><name name-style="western" xml:lang="en"><surname>Chesca</surname><given-names>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>Пестря</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Pestrea</surname><given-names>S. A.</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>Ахаева</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Akhayeva</surname><given-names>A. S.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Марченко</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Marchenko</surname><given-names>A. B.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Университет Трансильвании г. Брашов, Клиническая больница пневмофтизиологии<country>Румыния</country></aff><aff xml:lang="en">Transilvania University of Bra§ov, Clinical Hospital of Pneumophtysiology<country>Romania</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Клиническая больница психиатрии и неврологии<country>Румыния</country></aff><aff xml:lang="en">Clinical Hospital of Psychiatry and Neurology<country>Romania</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Карагандинский медицинский университет<country>Казахстан</country></aff><aff xml:lang="en">Karaganda Medical University<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>11</day><month>10</month><year>2021</year></pub-date><volume>0</volume><issue>2</issue><fpage>85</fpage><lpage>87</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ческа А..., Пестря С.А., Ахаева А.С., Марченко А.Б., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Ческа А..., Пестря С.А., Ахаева А.С., Марченко А.Б.</copyright-holder><copyright-holder xml:lang="en">Chesca A..., Pestrea S.A., Akhayeva A.S., Marchenko A.B.</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://medecol.qmu.kz/jour/article/view/273">https://medecol.qmu.kz/jour/article/view/273</self-uri><abstract><p>Авторы представленной статьи обращаются к проблеме чрезклеточных транспортных белков, применяемых в медицинской практике. Пассивная диффузия, облегчающая транспорт, опосредуется проникающими через мембрану белками со специфическими характеристиками. В процессе трансмембранного транспорта проникающие молекулы связываются с активным центром переносчика на одной стороне мембраны. Таким образом образуется комплекс пермеантпереносчик, который пересекает бислой, диссоциируя на другой стороне мембраны с целью высвобождения транспортируемой молекулы. Облегченная диффузия происходит в зависимости от концентрации переносимой молекулы в соответствии с кинетикой, аналогичной соотношению Михаэлиса - Ментена для ферментативных реакций с одним субстратом. Это означает, что скорость транспорта достигает максимального значения, когда она перестает зависеть от концентрации субстрата.</p></abstract><trans-abstract xml:lang="en"><p>The authors of the presented article address the problem of transcellular transport proteins used in medical practice. Passive transport-facilitated diffusion is mediated by permeating membrane proteins with specific characteristics. In the process of transmembrane transport, permeating molecules bind to an active site of the transporter on one side of the membrane. In this way a permeant-transporter complex is formed that crosses the bilayer, dissociating themselves on the other side of the membrane, with the purpose to release the molecule transported. Facilitated diffusion occurs depending on concentration transported molecule according to kinetics similar to the Michaelis-Menten relationship for enzymatic reactions with a single substrate. This implies that the rate of transport reaches a maximum value when it becomes independent of substrate concentration.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>белок</kwd><kwd>чрезклеточный транспорт</kwd><kwd>мембрана</kwd><kwd>диффузия</kwd><kwd>скорость транспорта</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">Chesca A. Methods for Cellular and Molecular Diagnostics in Human Pathology /A. Chesca, M. Ozturk. - Istanbul: University Press House, 2011. - P. 1-156.</mixed-citation><mixed-citation xml:lang="en">Chesca A. Methods for Cellular and Molecular Diagnostics in Human Pathology /A. Chesca, M. Ozturk. - Istanbul: University Press House, 2011. - P. 1-156.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Koszegi T. 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