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J Biosci ; 2007 Mar; 32(2): 229-39
Artigo em Inglês | IMSEAR | ID: sea-111141

RESUMO

The unsymmetrical cyanine dyes BOXTO (4-[6-(benzoxazole-2-yl-(3-methyl-)-2,3-dihydro-(benzo-1,3-thiazole)-2- methylidene)]-1-methyl-quinolinium chloride)and its positive divalent derivative BOXTO-PRO (4-[(3-methyl-6-(benzoxazole-2-yl)-2,3-dihydro-(benzo-1,3-thiazole)-2-methylidene)]-1-(3-trimethylammonium-propyl)-quinolinium dibromide) were studied as real-time PCR reporting fluorescent dyes and compared to SYBR GREEN I (SG)(2-[N- (3-dimethylaminopropyl)-N-propylamino] -4-[2,3-dihydro-3-methyl-(benzo-1,3-thiazol-2-yl)-methylidene]-1-phenyl- quinolinium).Unmodified BOXTO showed no inhibitory effects on real-time PCR,while BOXTO-PRO showed complete inhibition. Sufficient fluorescent signal was acquired when 0.5-1.0 meu M BOXTO was used with RotorGene and iCycler platforms.Statistical analysis showed that there is no significant difference between the efficiency and dynamic range of BOXTO and SG.BOXTO stock solution (1.5 mM) was stable at -20 degree C for more than one year and 40 meu M BOXTO solution was more stable than 5x SG when both were stored at 4 degree C for 45 days.


Assuntos
Primers do DNA/genética , Corantes Fluorescentes/química , Estrutura Molecular , Reação em Cadeia da Polimerase/métodos , Compostos de Quinolínio/química , Temperatura , Tiazóis/química
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