show Abstracthide AbstractTo understand the function of MSI1 in pluripotent stem cells, RNA-seq assays were performed on mouse embryonic stem cells R1, MSI1 knockout cell line R1-C5, human embryonic stem cells H9, RRM knockout cell line H9-C8, MSI1 full-length overexpression cell line H9-MSI1OE, MSI1C variant overexpression cell line H9-MSI1 (138-362) OE , H9-MSI1(272-362)OE. RNA bound by MSI1 in R1 and H9, and MSI1C variants MSI1 (138-362), MSI1(272-362) were detected using RIP-seq.