Thioguanosine Conversion Enables mRNA‐Lifetime Evaluation by RNA Sequencing Using Double Metabolic Labeling (TUC‐seq DUAL)
作者:Catherina Gasser、Isabel Delazer、Eva Neuner、Katharina Pascher、Karl Brillet、Sarah Klotz、Lukas Trixl、Maximilian Himmelstoß、Eric Ennifar、Dietmar Rieder、Alexandra Lusser、Ronald Micura
DOI:10.1002/anie.201916272
日期:2020.4.20
labeling of freshly synthesized RNA and because the conversion chemistry is fully compatible with the conversion of the frequently used metabolic label 4-thiouridine (4sU) into C, the combination of both modified nucleosides in dual-labeling setups enables high accuracy measurements of RNA decay. This approach, termed TUC-seq DUAL, uses the two modified nucleosides in subsequent pulses and their simultaneous
有关细胞RNA种群的时间信息对于理解RNA的功能作用至关重要。我们已经开发了基于肼/ NH 4 Cl / OsO 4的6-硫代鸟苷(6sG)到A'的转化,其中A'构成6-肼基嘌呤衍生物。A'保留了Watson-Crick碱基对模式,并在引物延伸测定和RNA测序中被有效地解码为腺苷。由于6sG适用于新鲜合成的RNA的代谢标记,并且转换化学与常用的代谢标记4-硫代尿苷(4sU)转换为C完全兼容,因此双标记设置中两种修饰核苷的结合可实现高RNA衰减的准确度测量。这种方法称为TUC-seq DUAL,