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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Cheese- and buttermaking</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Cheese- and buttermaking</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Сыроделие и маслоделие</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2073-4018</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">73761</article-id>
   <article-id pub-id-type="doi">10.31515/2073-4018-2023-3-42-44</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Оригинальная статья</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Original article</subject>
    </subj-group>
    <subj-group>
     <subject>Оригинальная статья</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Thermal stability and Michaelis-Menten kinetics parametersof engineered variant of recombinant reindeer chymosin (Rangifer tarandus)</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Термостабильность и параметры кинетики Михаэлиса-Ментен инженерного варианта рекомбинантного химозина северного оленя (Rangifer tarandus)</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Пушкарев</surname>
       <given-names>Владимир Александрович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Pushkarev</surname>
       <given-names>Vladimir A.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4938-8136</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Мусина</surname>
       <given-names>Ольга Николаевна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Musina</surname>
       <given-names>Olga N.</given-names>
      </name>
     </name-alternatives>
     <email>musinaolga@gmail.com</email>
     <bio xml:lang="ru">
      <p>доктор технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Беленькая</surname>
       <given-names>Светлана Валерьевна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Belenkaya</surname>
       <given-names>Svetlana V.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат биологических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of sciences in biology;</p>
     </bio>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Щербаков</surname>
       <given-names>Дмитрий Николаевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Shcherbakov</surname>
       <given-names>Dmitry N.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат биологических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of sciences in biology;</p>
     </bio>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Коваль</surname>
       <given-names>Анатолий Дмитриевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Koval</surname>
       <given-names>Anatoliy D.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Белов</surname>
       <given-names>Александр Николаевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Belov</surname>
       <given-names>Aleksandr N.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-6"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Ельчанинов</surname>
       <given-names>Вадим Валентинович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Elchaninov</surname>
       <given-names>Vadim Valentinovich</given-names>
      </name>
     </name-alternatives>
     <email>ve3636@yandex.ru</email>
     <bio xml:lang="ru">
      <p>кандидат технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-7"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Федеральный Алтайский научный центр агробиотехнологий, Сибирский НИИ сыроделия</institution>
     <city>Барнаул</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Federal Altai Scientific Centre of Agro-Bio Technologies, Siberian Research Institute of Cheese Making</institution>
     <city>Barnaul</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Алтайский государственный технический университет им. И. И. Ползунова</institution>
     <city>Барнаул</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Polzunov Altai State Technical University</institution>
     <city>Barnaul</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Алтайский государственный университет</institution>
     <city>Барнаул</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Altai State University</institution>
     <city>Barnaul</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Алтайский государственный университет</institution>
     <city>Барнаул</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Altai State University</institution>
     <city>Barnaul</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Федеральный Алтайский научный центр агробиотехнологий, отдел Сибирский НИИ сыроделия</institution>
     <city>Барнаул</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Federal Altai Scientific Centre of Agro-BioTechnologies, Siberian Research Institute of Cheese Making</institution>
     <city>Barnaul</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-6">
    <aff>
     <institution xml:lang="ru">Федеральный Алтайский научный центр агробиотехнологий, отдел Сибирский НИИ сыроделия</institution>
     <city>Барнаул</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Federal Altai Scientific Centre of Agro-BioTechnologies, Siberian Research Institute of Cheese Making</institution>
     <city>Barnaul</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-7">
    <aff>
     <institution xml:lang="ru">ФГБНУ &quot;Федеральный Алтайский научный центр агробиотехнологий&quot;</institution>
     <city>Барнаул</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Federal Altai Scientific Centre of Agro-BioTechnologies</institution>
     <city>Barnaul</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2024-01-23T12:12:37+03:00">
    <day>23</day>
    <month>01</month>
    <year>2024</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2024-01-23T12:12:37+03:00">
    <day>23</day>
    <month>01</month>
    <year>2024</year>
   </pub-date>
   <issue>3</issue>
   <fpage>42</fpage>
   <lpage>44</lpage>
   <history>
    <date date-type="received" iso-8601-date="2023-05-26T00:00:00+03:00">
     <day>26</day>
     <month>05</month>
     <year>2023</year>
    </date>
    <date date-type="accepted" iso-8601-date="2023-05-26T00:00:00+03:00">
     <day>26</day>
     <month>05</month>
     <year>2023</year>
    </date>
   </history>
   <self-uri xlink:href="https://jsocnet.ru/en/nauka/article/73761/view">https://jsocnet.ru/en/nauka/article/73761/view</self-uri>
   <abstract xml:lang="ru">
    <p>Изучена термостабильность и параметры кинетики Михаэлиса-Ментен инженерного варианта рекомбинантного химозина северного оленя (Rangifer tarandus) с точечной аминокислотной заменой Lys53→Glu. Значения порога термоинактивации исследуемого фермента и коммерческого рекомбинантного химозина коровы совпали и составили 50 °С. Инженерный фермент северного оленя проявлял наибольшую аффинность к использованному хромогенному субстрату, его константа Михаэлиса (Кm) была в 1,5–4,7 раза ниже, чем у коммерческих рекомбинантных химозинов. Каталитические константы скорости (kcat) инженерного варианта химозина оленя и рекомбинантного химозина верблюда были сопоставимы. По специфичности (kcat/Km) химозины северного оленя и коровы превосходили генно-инженерный аналог химозина одногорбого верблюда в 1,7 раза.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The thermal stability and parameters of the Michaelis-Menten kinetics of engineered variant of recombinant reindeer chymosin (Rangifer tarandus) with a point amino acid substitution Lys53→Glu were studied. The values of the threshold of thermal inactivation of the studied enzyme and commercial recombinant cow chymosin coincided and amounted to 50 °C. The engineered reindeer enzyme showed the greatest affinity to the used chromogenic substrate, its Michaelis constant (Km) was 1,5–4,7 times lower than the same indicator of commercial recombinant chymosins. The catalytic rate constants (kcat) of the engineered variant of deer chymosin and recombinant camel chymosin were comparable. In terms of specificity (kcat/Km), the chymosins of reindeer and cow surpassed the genetically engineered analogue of the chymosin of the single-humped camel by 1,7 times.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>химозин</kwd>
    <kwd>северный олень</kwd>
    <kwd>инженерный вариант рекомбинантного химозина</kwd>
    <kwd>термостабильность</kwd>
    <kwd>параметры кинетики Михаэлиса-Ментен</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>chymosin</kwd>
    <kwd>reindeer</kwd>
    <kwd>engineered variant of recombinant chymosin</kwd>
    <kwd>thermal stability</kwd>
    <kwd>parameters of Michaelis-Menten kinetics</kwd>
   </kwd-group>
  </article-meta>
 </front>
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  <p></p>
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