Deubiquitinase USP47-stabilized splicing factor IK regulates the splicing of ATM pre-mRNA

Abstract
IK depletion leads to an aberrant mitotic entry because of chromosomal misalignment through the enhancement of Aurora B activity at the interphase. Here, we demonstrate that IK, a spliceosomal component, plays a crucial role in the proper splicing of the ATM pre-mRNA among other genes related with the DNA Damage Response (DDR). Intron 1 in the ATM pre-mRNA, having lengths ATM pre-mRNA and USP47 contributes toward the stabilization of IK.
Funding Information
  • National Research Foundation of Korea (2016R1A5A1011974)