Cloning, purification, and partial characterization of Bacillus subtilis urate oxidase expressed in Escherichia coli

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorPfrimer, Pollyanna-
Autor(es): dc.creatorMoraes, Lídia Maria Pepe de-
Autor(es): dc.creatorGaldino, Alexsandro Sobreira-
Autor(es): dc.creatorSalles, Loise Pedrosa-
Autor(es): dc.creatorReis, Viviane Castelo Branco-
Autor(es): dc.creatorDe Marco, Janice Lisboa-
Autor(es): dc.creatorPrates, Maura Vianna-
Autor(es): dc.creatorBloch Júnior, Carlos-
Autor(es): dc.creatorTorres, Fernando Araripe Gonçalves-
Data de aceite: dc.date.accessioned2024-07-22T12:24:56Z-
Data de disponibilização: dc.date.available2024-07-22T12:24:56Z-
Data de envio: dc.date.issued2013-08-27-
Data de envio: dc.date.issued2013-08-27-
Data de envio: dc.date.issued2010-
Fonte completa do material: dc.identifierhttp://repositorio.unb.br/handle/10482/14042-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1155/2010/674908-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/803164-
Descrição: dc.descriptionUrate oxidase (EC 1.7.3.3) is an enzyme involved in purine metabolism which is used in the treatment of gout and as diagnostic reagent for detection of uric acid. In order to produce this enzyme in large quantities for biotechnological purposes, the gene coding for the Bacillus subtilis urate oxidase was cloned and heterologously expressed in Escherichia coli. Time course induction in E. coli showed an induced protein with an apparent molecular mass of ∼60 kDa. Soluble recombinant enzyme was purified in a single-step procedure using Ni-NTA column. The enzyme was purified 2.1-fold with a yield of 56% compared to the crude extract. MALDI-TOF analysis revealed an ion with a mass of 58675 Da which is in agreement with the expected mass of the recombinant protein. The purified enzyme showed an optimal pH and temperature of 8.0 and 37◦C, respectively, and retained 90% of its activity after 72 hours of incubation at −20◦C and 4◦C.-
Formato: dc.formatapplication/pdf-
Publicador: dc.publisherHindawi Publishing Corporation-
Direitos: dc.rightsAcesso Aberto-
Direitos: dc.rightsCopyright © 2010 Pollyana Pfrimer et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Fonte: http://www.hindawi.com/journals/bmri/2010/674908/. Acesso em 27 ago. 2013.-
Palavras-chave: dc.subjectEnzimas - análise-
Palavras-chave: dc.subjectEscherichia coli-
Palavras-chave: dc.subjectBactérias-
Título: dc.titleCloning, purification, and partial characterization of Bacillus subtilis urate oxidase expressed in Escherichia coli-
Aparece nas coleções:Repositório Institucional – UNB

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