protein B-cell lymphoma/leukemia 11B BCL-11B PR:000004691 A protein that is a translation product of the human BCL11B gene or a 1:1 ortholog thereof. B-cell CLL/lymphoma 11B COUP-TF-interacting protein 2 Rit1 radiation-induced tumor suppressor gene 1 protein RIT1 BCL11B protein CTIP2 Category=gene.