A CRISPR-derived biosensor for the sensitive detection of transcription factors based on the target-induced inhibition of Cas12a activation.
转录因子(TFs)是决定细胞命运的关键蛋白,已被认为是疾病诊断和治疗的重要标志物。本文报道了一种基于CRISPR/Cas12a系统的高灵敏转录因子生物传感器。该传感器基于Cas12a-crRNA与TFs对一种称为激活剂的双链DNA(dsDNA)的竞争性结合。无TF时,激活剂可被Cas12a-crRNA识别并引发Cas12a的DNas...