Type I interferon receptor beta chain-associated protein; Acts as a tumor suppressor. Inhibits DNA synthesis. Its ability to inhibit oncogenic transformation is mediated through its association with RB1. Plays a role in the expression of genes required for the G1/S transition; Belongs to the lin-9 family.
Synonyms: LIN9, LIN9p, hLIN9, B1B047, C9J5J4 ...