MOB3A (MOB Kinase Activator 3A) is a Protein Coding gene. An important paralog of this gene is MOB3B. MOB3B (MOB Kinase Activator 3B) is a Protein Coding gene. An important paralog of this gene is MOB3A. The protein encoded by this gene shares similarity with the yeast Mob1 protein. Yeast Mob1 binds Mps1p, a protein kinase essential for spindle pole body duplication and mitotic checkpoint regulation. This gene is located on the opposite strand as the interferon kappa precursor (IFNK) gene.