Protein Red (IK)

Involved in pre-mRNA splicing as a part of the spliceosome (PubMed:28781166). Auxiliary spliceosomal protein that modulates selection of alternative splice sites in a small set of goal pre-mRNA species (Probable).

Required for normal mitotic cell cycle progression (PubMed:22351768, PubMed:24252166). Recruits MAD1L1 and MAD2L1 to kinetochores, and is needed to trigger the spindle assembly checkpoint (PubMed:22351768).