LIN28 encodes an RNA-binding protein that binds to and enhances the translation of the IGF-2 (insulin-like growth factor 2) mRNA. Lin28 binds to the let-7 pre-microRNA and blocks production of the mature let-7 microRNA in mouse embryonic stem cells.
|LIN28 inhibitor LI71
|LIN28 inhibitor LI71 is a potent and cell-permeable LIN28 inhibitor, which abolishes LIN28-mediated oligouridylation with an IC50 of 7 uM. LIN28 inhibitor LI71 directly binds the cold shock domain (CSD) to suppress LIN28’s activity against let-7 in leukemia cells and embryonic stem cells.