GFI1B Antibody - #DF10049
| Product: | GFI1B Antibody |
| Catalog: | DF10049 |
| Description: | Rabbit polyclonal antibody to GFI1B |
| Application: | WB IF/ICC |
| Reactivity: | Human |
| Prediction: | Pig, Bovine, Horse, Sheep, Rabbit, Dog |
| Mol.Wt.: | 37 kDa; 37kD(Calculated). |
| Uniprot: | Q5VTD9 |
| RRID: | AB_2840629 |
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Protocols
Product Info
*The optimal dilutions should be determined by the end user.
*Tips:
WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.
Cite Format: Affinity Biosciences Cat# DF10049, RRID:AB_2840629.
Fold/Unfold
GFI 1B; gfi1b; GFI1B protein; GFI1B_HUMAN; Growth factor independent 1B protein; Growth factor independent 1B transcription repressor; Growth factor independent protein 1B; OTTHUMP00000022443; OTTHUMP00000022444; OTTHUMP000000235527; Potential regulator of CDKN1A; Potential regulator of CDKN1A translocated in CML; Translocated in CML; Zinc finger protein Gfi-1b;
Immunogens
Expressed in bone marrow and fetal liver, but also detectable in fetal spleen, fetal thymus, and testes. Detected in hematopoietic stem cells, erythroblasts, and megakaryocytes. Overexpressed in bone marrow of patients with erythroleukemia and megakaryocytic leukemia as well as in their corresponding leukemic cell lines, and markedly repressed in severe aplastic anemia (SAA).
- Q5VTD9 GFI1B_HUMAN:
- Protein BLAST With
- NCBI/
- ExPASy/
- Uniprot
MPRSFLVKSKKAHTYHQPRVQEDEPLWPPALTPVPRDQAPSNSPVLSTLFPNQCLDWTNLKREPELEQDQNLARMAPAPEGPIVLSRPQDGDSPLSDSPPFYKPSFSWDTLATTYGHSYRQAPSTMQSAFLEHSVSLYGSPLVPSTEPALDFSLRYSPGMDAYHCVKCNKVFSTPHGLEVHVRRSHSGTRPFACDICGKTFGHAVSLEQHTHVHSQERSFECRMCGKAFKRSSTLSTHLLIHSDTRPYPCQFCGKRFHQKSDMKKHTYIHTGEKPHKCQVCGKAFSQSSNLITHSRKHTGFKPFSCELCTKGFQRKVDLRRHRESQHNLK
Predictions
Score>80(red) has high confidence and is suggested to be used for WB detection. *The prediction model is mainly based on the alignment of immunogen sequences, the results are for reference only, not as the basis of quality assurance.
High(score>80) Medium(80>score>50) Low(score<50) No confidence
PTMs - Q5VTD9 As Substrate
| Site | PTM Type | Enzyme | Source |
|---|---|---|---|
| K8 | Methylation | Uniprot | |
| S41 | Phosphorylation | Uniprot | |
| Y156 | Phosphorylation | Uniprot | |
| S157 | Phosphorylation | Uniprot | |
| S233 | Phosphorylation | Uniprot | |
| S243 | Phosphorylation | Uniprot | |
| T245 | Phosphorylation | Uniprot |
Research Backgrounds
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.
Methylation at Lys-8 in the SNAG domain seems required for the recruitment of the corepressor complex.
Nucleus.
Expressed in bone marrow and fetal liver, but also detectable in fetal spleen, fetal thymus, and testes. Detected in hematopoietic stem cells, erythroblasts, and megakaryocytes. Overexpressed in bone marrow of patients with erythroleukemia and megakaryocytic leukemia as well as in their corresponding leukemic cell lines, and markedly repressed in severe aplastic anemia (SAA).
Component of a RCOR-GFI-KDM1A-HDAC complex. Interacts directly with RCOR1, KDM1A and HDAC2 (By similarity). Forms a complex with GATA1. Interacts with histone methyltransferases EHMT2 and SUV39H1. Interacts with ARIH2 (via RING-type 2). Interacts with RUNX1T1.
The zinc finger domains are essential for erythroid expansion and acts as an activation domain whereas non finger domain serves as repression domain.
The SNAG domain of GFIs is required for nuclear location and for interaction with some corepressors.
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