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woai43

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[求助] BSP上下游引物TM值差异大导致扩增不成功

由于考虑GC位点,亚硫酸盐处理后的上游可设计引物区域为:GGGTATATAATAGGGATGGGAGGATTGTATAGAGAAGTTAA;下游为:GTTTTTTTAAGAGATTAGATTTTATAAATTTTTTTTTTAT。上下游GC%含量差异较大,设计引物后上游引物TAATAGGGATGGGAGGATTGTATAG,其TM值为58,下游引物TTATAAAATCTAATCTCTTAAAAAAAC,其TM值为51,尝试梯度PCR48-58度均未P出,touchdown PCR从60降至52度未P出。酶为TAKARA的LA TAQ。请问有何解决方法,非常感谢~~~
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