| Modification Notes |
EHZF (early hematopoietic zinc finger protein), also known as zinc finger protein 521 or LYST-interacting protein 3, is a 1,311 amino acid transcription factor that can act as a repressor or an activator of gene transcription. Predominantly expressed in progenitor hematopoietic cells and organs with reduced expression during differentiation, this nuclear protein contains 30 C2H2 Kruppel-type zinc fingers that are distributed in clusters throughout its sequence. As a member of the BMP (bone morphogenetic protein) signaling pathway, EHZF interacts with SMAD proteins to activate transcription of BMP target genes. Through interaction with EBF1 (early B-cell factor 1), EHZF represses transcription by preventing EBF-DNA binding. With high expression observed in most acute myelogenous leukemias, medulloblastomas and other brain tumors, it is suspected the EHZF may play a role in oncogenesis. |