GFI1 (Growth factor independent protein 1) is a nuclear zinc finger protein that functions as a transcriptional repressor. This protein plays a role in diverse developmental conte, Xenopus/Amphibian,ts, including hematopoiesis and oncogenesis. It functions as part of a comple, Xenopus/Amphibian, along with other cofactors to control histone modifications that lead to silencing of the target gene promoters. Mutations in this gene cause autosomal dominant severe congenital neutropenia, and also dominant nonimmune chronic idiopathic neutropenia of adults, which are heterogeneous hematopoietic disorders that cause predispositions to leukemias and infections. GFl1 is e, Xenopus/Amphibian,pressed in the hematopoietic and lymphoid system, sensory epithelia, lungs and CNS.