Essential proto-oncogenic transcriptional regulator necessary for development and differentiation of erythroid and megakaryocytic lineages. Component of a RCOR-GFI-KDM1A-HDAC complex that suppresses, via histone deacetylase (HDAC) recruitment, a number of genes implicated in multilineage blood cell development and controls hematopoietic differentiation. 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.
Target |
Zinc Finger Protein Gfi-1b (GFI1B) |
Clonality |
Polyclonal |
Reactivity |
Human, Mouse |
Tested Applications |
ELISA, WB |
Host |
Rabbit |
Recommended dilutions |
WB: 1/1000. Optimal dilutions/concentrations should be determined by the end user. |
Conjugation |
Unconjugated |
Immunogen |
KLH-conjugated synthetic peptide between 302-330 amino acids from the C-terminal region of human GFI1B. |
Isotype |
IgG |
Form |
Liquid |
Purification |
Purified through a protein A column, followed by peptide affinity purification. |
Storage |
Aliquot and store at -20°C. Avoid repeated freeze/thaw cycles. |
UniProt Primary AC |
Q5VTD9 (UniProt,
ExPASy)
|
UniProt Secondary AC |
O95270, Q5VTD8, Q6FHZ2, Q6T888 |
UniProt Entry Name |
GFI1B_HUMAN |
NCBI Accession |
NP_001128503.1
NP_004179.3
|
KEGG |
hsa:8328
|
String |
9606.ENSP00000344782
|
Molecular Weight |
Calculated MW: 37.5 kDa |
Buffer |
PBS containing 0.09% sodium azide. |
Availability |
Shipped within 5-10 working days. |
Note |
This product is for research use only. |
Research Articles on Zinc Finger Protein Gfi-1b (GFI1B)