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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">dan-65</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>БИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOLOGY</subject></subj-group></article-categories><title-group><article-title>КЛОНИРОВАНИЕ И СЕКВЕНИРОВАНИЕ ГЕНА, КОДИРУЮЩЕГО β-ГАЛАКТОЗИДАЗУ БАКТЕРИЙ ARTHROBACTER SULFONIVORANS</article-title><trans-title-group xml:lang="en"><trans-title>CLONING AND SEQUENCING OF GENE ENCODING β-GALACTOSIDASE OF BACTERIA ARTHROBACTER SULFONIVORANS</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>КОСТЕНЕВИЧ</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>KASTSIANEVICH</surname><given-names>A. A.</given-names></name></name-alternatives><email xlink:type="simple">A.Kastsianevich@gmail.com</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>САПУНОВА</surname><given-names>Л. И.</given-names></name><name name-style="western" xml:lang="en"><surname>SAPUNOVA</surname><given-names>L. I.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>ЛОБАНОК</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>LOBANOK</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>академік</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Институт микробиологии НАН Беларуси, Минск</institution><country>Belarus</country></aff><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>25</day><month>05</month><year>2016</year></pub-date><volume>59</volume><issue>1</issue><fpage>96</fpage><lpage>101</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; КОСТЕНЕВИЧ А.А., САПУНОВА Л.И., ЛОБАНОК А.Г., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">КОСТЕНЕВИЧ А.А., САПУНОВА Л.И., ЛОБАНОК А.Г.</copyright-holder><copyright-holder xml:lang="en">KASTSIANEVICH A.A., SAPUNOVA L.I., LOBANOK A.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://doklady.belnauka.by/jour/article/view/65">https://doklady.belnauka.by/jour/article/view/65</self-uri><abstract><p>Путем клонирования в составе плазмиды pJET1.2 фрагментов ДНК, содержащих ген β-галактозидазы (β-gal) бактерий Arthrobacter sulfonivorans ЛФ-ГАЛ, их последующего секвенирования и сравнения с известными последовательностями из базы данных GenBank установлена и депонирована (код доступа KM277894) полная нуклеотидная последовательность гена β-gal.</p><p>Анализ структуры β-gal бактерий A. sulfonivorans ЛФ-ГАЛ показал, что он состоит из 3132 п. н., которые кодируют 1043 аминокислоты, составляющие субъединицу β-галактозидазы с молекулярной массой 113,6 кДа. Установлено, что β-gal исследуемого штамма в наибольшей степени идентичен генам, кодирующим β-галактозидазы у актинобактерий рода Arthrobacter (66–72 %). Соответствие аминокислотного состава ферментных белков A. sulfonivorans ЛФ-ГАЛ и других представителей рода Arthrobacter составляет 59–95 %.</p><p>Анализ аминокислотной последовательности ферментного белка в пакете программ BLAST показал, что β-галактозидаза A. sulfonivorans ЛФ-ГАЛ содержит консервативные последовательности, характерные для гликозил-гидролаз 2 семейства.</p></abstract><trans-abstract xml:lang="en"><p>A full nucleotide sequence of the β-galactosidase gene (β-gal) was deciphered by cloning in plasmid pJET1.2 of DNA fragments containing β-gal of bacteria Arthrobacter sulfonivorans LF-GAL, their subsequent sequencing and comparison with the known sequences from the GenBank database. It was deposited under access number KM2778940.The evaluation of the β-gal structure showed that it is composed of 3132 b.p. encoding 1043 amino acids making up a β-galactosidase subunit with a molecular weight of 113.6 kDa. It was found that β-gal of the examined strain is characterized by the highest degree of similarity to the genes encoding β-galactosidase in the genus Arthrobacter (66–72 %).The amino acid composition of enzyme proteins from A. sulfonivorans LF-GAL matches that of other representatives of the genus Arthrobacter by 59–95 %. The analysis of the enzyme protein amino acid sequence by BLAST software package demonstrated that β-galactosidase of A. sulfonivorans LF-GAL comprises conservative sequences typical for glycosyl hydrolase family 2.</p></trans-abstract></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Nath A., Mondal S., Chakraborty S. et al. // Asia-Pac. J. Chem. 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