Pim1 may affect the structure or silencing of chromatin by phosphorylating HP1 gamma/CBX3 (By similarity). Promotes the G1/S transition of the cell cycle via up-regulation of CDK2 activity and phosphorylation of CDKN1B, resulting in enhanced nuclear export and proteasome-dependent degradation of CDKN1B (By similarity). Also represses CDKN1B transcription by phosphorylating and inactivating the transcription factor FOXO3 (By similarity). Plays a role in signal transduction in blood cells (By similarity). Contributes to both cell proliferation and survival thus providing a selective advantage in tumorigenesis (By similarity).

2-8°C (short-term); -20°C (long-term)