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Cloning of flavone synthase (FNSII) gene and expression in three cell lines of Saussurea medusa / 生物工程学报
Chinese Journal of Biotechnology ; (12): 1720-1727, 2015.
Artículo en Chino | WPRIM | ID: wpr-337463
ABSTRACT
Saussurea medusa is a rare traditional Chinese medicinal herb, of which luteolin is the niain active medicinal compound for cancer prevention and treatment. A full-length FNSII gene, namely SmFNSII (GenBank Accession No. KF170286), was obtained from green cell line of Saussurea medusa by RT-PCR and RACE-PCR. Sequence analysis indicated that SmFNSII is 1 710 bp in full length, containing a 34 bp 5'-untranslated region (5'-UTR), a 125 bp 3'-UTR, and a 1 551 bp open reading frame (ORF) encoding 516 amino acid residues. Amino acid sequence analysis indicated that SmFNSII belonged to subfamily CYP93B of plant cytochrome P450. Sequence alignment and phylogenetic analysis revealed that amino acid sequences of SmFNSII shared 87% homology with the protein in Hieracium pilosella. Quantitative real-time PCR analysis indicated that SmFNSII expression is the highest in red cell line and the lowest in white cell line, corresponding to quantitative analysis of luteolin concentration. pET-SmFNSII, a prokaryotic expression recombinant plasmid, was constructed and transferred into Escherichia coli, and the expressed protein band was the same size with predicted protein. Saussurea medusa cultivars with high anti-inflammatory, anti-cancer activities and health care function would be cultivated through filtering cell lines and plants with high expression level of FNSII gene and luteolin accumulation.
Asunto(s)
Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Filogenia / Recombinación Genética / Línea Celular / Sistemas de Lectura Abierta / Alineación de Secuencia / Secuencia de Aminoácidos / Clonación Molecular / Regiones no Traducidas 5' / Análisis de Secuencia de Proteína / Saussurea Idioma: Chino Revista: Chinese Journal of Biotechnology Año: 2015 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Filogenia / Recombinación Genética / Línea Celular / Sistemas de Lectura Abierta / Alineación de Secuencia / Secuencia de Aminoácidos / Clonación Molecular / Regiones no Traducidas 5' / Análisis de Secuencia de Proteína / Saussurea Idioma: Chino Revista: Chinese Journal of Biotechnology Año: 2015 Tipo del documento: Artículo