GFI1B Antibody

Cusabio

GFI1B Antibody

20

Western Blot, ELISA

Research Use Only

Polyclonal

Unconjugated

GFI1B

growth factor independent 1B transcriptional repressor

BDPLT17; growth factor independent 1B (potential regulator of CDKN1A, translocated in CML); growth factor independent 1B transcription repressor; zinc finger protein Gfi-1b; ZNF163B

Rabbit

IgG

Zinc finger protein Gfi-1b

Essential proto-oncogenic transcriptional regulator necessary for development and differentiation of erythroid and megakaryocytic lineages. Transcriptional repressor or activator depending on both promoter and cell type context; represses promoter activity of SOCS1 and SOCS3 and thus, may regulate cytokine signaling pathways. Cooperates with GATA1 to repress target gene transcription, such as the apoptosis regulator BCL2L1; GFI1B silencing in leukemic cell lines markedly increase apoptosis rate. Inhibits down-regulation of MYC and MYB as well as the cyclin-dependent kinase inhibitor CDKN1A/P21WAF1 in IL6-treated myelomonocytic cells. Represses expression of GATA3 in T-cell lymphomas and inhibits GATA1-mediated transcription; as GATA1 also mediates erythroid GFI1B transcription, both GATA1 and GFI1B participate in a feedback regulatory pathway controlling the expression of GFI1B gene in erythroid cells. Suppresses GATA1-mediated stimulation of GFI1B promoter through protein interaction. Binds to gamma-satellite DNA and to its own promoter, auto-repressing its own expression. Alters histone methylation by recruiting histone methyltransferase to target genes promoters. Plays a role in heterochromatin formation. Osawa M., Yamaguchi T., Nakamura Y. Iwama A.Blood 100:2769-2777(2002) Huang D.-Y., Kuo Y.-Y., Chang Z.-F. Nucleic Acids Res. 33:5331-5342(2005) Vassen L., Fiolka K., Moeroey T. EMBO J. 25:2409-2419(2006)

Human, Mouse, Rat

-20°C or -80°C

12352203