Synthesis and evaluation of a new non-fluorescent quencher in fluorogenic oligonucleotide probes for real-time PCR
作者:Jonathan P. May、Lynda J. Brown、Ian van Delft、Nicola Thelwell、Kate Harley、Tom Brown
DOI:10.1039/b504759e
日期:——
A non-fluorescent quencher, based on the diaminoanthraquinone Disperse Blue 3, has been incorporated into oligonucleotides at the 5′-end, the 3′-end and internally as a thymidine derivative. Fluorimetry and fluorogenic real-time PCR experiments demonstrate that the quencher is effective with a wide range of fluorescent dyes. The anthraquinone moiety increases the melting temperature of DNA duplexes, thus allowing shorter, more discriminatory probes to be used. The quencher has been used in Scorpion primers and TaqMan
® probes for human DNA sequence recognition and mutation detection.
基于二氨基蒽醌分散蓝 3 的非荧光猝灭剂已作为胸苷衍生物掺入寡核苷酸的 5' 端、3' 端和内部。荧光测定和荧光实时 PCR 实验表明,猝灭剂对多种荧光染料均有效。蒽醌部分提高了 DNA 双链体的解链温度,从而允许使用更短、更具辨别力的探针。该淬灭剂已用于 Scorpion 引物和 TaqMan
® 用于人类 DNA 序列识别和突变检测的探针。