RNA velocity | RNA速率
单细胞转录组确实是利器,但我们大多只利用了表达的信息,而从reads到表达之间的信息完全被我们忽略了。 最近nature发了一篇单细胞方法类文章,讲得就是如何利用RNA velocity来做细胞发育路径的推断。 velocyto velocyto -notebooks RNA velocity of single cells 首先需要了解一些基本概念: RNA velocity:the time derivative of the gene expression state—can be directly estimated by distinguishing between unspliced and spliced mRNAs in common single-cell RNA sequencing protocols. a high-dimensional vector that predicts the future state of individual cells on a timescale of hours. 比较抽象,一开始很难理解。 half-life of mRNA:Translation in both prokaryotes and eukaryotes involves three phases: initiation, elongation, and