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Functional screening of a Caatinga goat (Capra hircus) rumen metagenomic library reveals a novel GH3 beta-xylosidase. Repositório Alice
SOUTO, B. de M.; ARAÚJO, A. C. B. de; HAMANN, P. R. V.; BASTOS, A. de R.; CUNHA, I. de S.; PEIXOTO, J.; KRUGER, R. H.; NORONHA, E. F.; QUIRINO, B. F..
Functional screening of metagenomic libraries is an effective approach for identification of novel enzymes. A Caatinga biome goat rumen metagenomic library was screened using esculin as a substrate, and a gene from an unknown bacterium encoding a novel GH3 enzyme, BGL11, was identified. None of the BGL11 closely related genes have been previously characterized. Recombinant BGL11 was obtained and kinetically characterized. Substrate specificity of the purified protein was assessed using seven synthetic aryl substrates. Activity towards nitrophenyl-beta-D-glucopyranoside (pNPG), 4-nitrophenyl- beta -D-xylopyranoside (pNPX) and 4-nitrophenyl- beta -D-cellobioside (pNPC) suggested that BGL11 is a multifunctional enzyme with beta-glucosidase, beta-xylosidase,...
Tipo: Artigo de periódico Palavras-chave: Enzima; Clonagem; Programa de Computador; Peptídeo; Metagenomics; Enzymes; Cloning (animals); Signal peptide; Prevotella; Computer software; Screening.
Ano: 2021 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1129624
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