======= GFI1B =======
== Gene Information ==
* **Official Symbol**: GFI1B
* **Official Name**: growth factor independent 1B transcriptional repressor
* **Aliases and Previous Symbols**: N/A
* **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=8328|8328]]
* **UniProt**: [[https://www.uniprot.org/uniprot/Q5VTD9|Q5VTD9]]
* **Interactions**: [[https://thebiogrid.org/search.php?search=GFI1B&organism=9606|BioGRID]]
* **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20GFI1B|Open PubMed]]
* **OMIM**: [[https://omim.org/entry/604383|Open OMIM]]
== Function Summary ==
* **Entrez Summary**: This gene encodes a zinc-finger containing transcriptional regulator that is primarily expressed in cells of hematopoietic lineage. The encoded protein complexes with numerous other transcriptional regulatory proteins including GATA-1, runt-related transcription factor 1 and histone deacetylases to control expression of genes involved in the development and maturation of erythrocytes and megakaryocytes. Mutations in this gene are the cause of the autosomal dominant platelet disorder, platelet-type bleeding disorder-17. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Aug 2014].
* **UniProt Summary**: 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. {ECO:0000269|PubMed:12351384, ECO:0000269|PubMed:16177182, ECO:0000269|PubMed:16688220, ECO:0000269|PubMed:16782810, ECO:0000269|PubMed:17156408, ECO:0000269|PubMed:17272506, ECO:0000269|PubMed:17420275}.
No Pfam Domain information is available for this gene.
|RNA polymerase II transcription factor binding|
|negative regulation of G1/S transition of mitotic cell cycle|
|negative regulation of cell cycle G1/S phase transition|
|nuclear matrix|
|regulation of G1/S transition of mitotic cell cycle|
|regulation of cell cycle G1/S phase transition|
|transcription factor complex|
|negative regulation of mitotic cell cycle phase transition|
|negative regulation of cell cycle phase transition|
|negative regulation of mitotic cell cycle|
|negative regulation of cell cycle process|
|regulation of mitotic cell cycle phase transition|
|regulation of cell cycle phase transition|
|negative regulation of cell cycle|
|regulation of mitotic cell cycle|
|chromatin organization|
|regulation of cell cycle process|
|negative regulation of transcription by RNA polymerase II|
|chromosome organization|
|regulation of cell cycle|
|negative regulation of transcription, DNA-templated|
|negative regulation of nucleic acid-templated transcription|
|negative regulation of RNA biosynthetic process|
|negative regulation of RNA metabolic process|
|negative regulation of cellular macromolecule biosynthetic process|
|negative regulation of nucleobase-containing compound metabolic process|
|DNA binding|
|negative regulation of macromolecule biosynthetic process|
|negative regulation of cellular biosynthetic process|
|negative regulation of biosynthetic process|
|DNA-binding transcription factor activity, RNA polymerase II-specific|
|negative regulation of gene expression|
\\
=== CRISPR Data ===
No hits were found.
No correlation found to any other genes in chemogenomics.
Global Fraction of Cell Lines Where Essential: 0/726
^Tissue^Fraction Of Cell Lines Where Essential^
|1290807.0|0/1|
|909776.0|0/1|
|bile duct|0/28|
|blood|0/28|
|bone|0/25|
|breast|0/33|
|central nervous system|0/56|
|cervix|0/4|
|colorectal|0/17|
|esophagus|0/13|
|fibroblast|0/1|
|gastric|0/15|
|kidney|0/21|
|liver|0/20|
|lung|0/75|
|lymphocyte|0/14|
|ovary|0/26|
|pancreas|0/24|
|peripheral nervous system|0/16|
|plasma cell|0/15|
|prostate|0/1|
|skin|0/24|
|soft tissue|0/7|
|thyroid|0/2|
|upper aerodigestive|0/22|
|urinary tract|0/29|
|uterus|0/5|
== Essentiality in NALM6 ==
* **Essentiality Rank**: 3316
* **Expression level (log2 read counts)**: 0.15
{{:chemogenomics:nalm6 dist.png?nolink |}}