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KLF4
Transcription factor; can act both as activator and as repressor. Binds the 5'-CACCC-3' core sequence. Binds to the promoter region of its own gene and can activate its own transcription. Regulates the expression of key transcription factors during embryonic development. Plays an important role in maintaining embryonic stem cells, and in preventing their differentiation. Required for establishing the barrier function of the skin and for postnatal maturation and maintenance of the ocular surface. Involved in the differentiation of epithelial cells and may also function in skeletal and kidney development. Contributes to the down-regulation of p53/TP53 transcription. Interacts with POU5F1/OCT4 and SOX2. Interacts with MUC1 (via the C-terminal domain). Belongs to the krueppel C2H2-type zinc-finger protein family. 3 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
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| Protein type: Transcription factor; DNA binding protein; C2H2-type zinc finger protein |
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Cellular Component: transcription factor complex; nuclear chromatin
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Molecular Function: zinc ion binding; double-stranded DNA binding; phosphoinositide 3-kinase regulator activity; transcription factor activity
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Biological Process: transcription from RNA polymerase II promoter; fat cell differentiation; post-embryonic camera-type eye development; negative regulation of smooth muscle cell proliferation; positive regulation of transcription, DNA-dependent; negative regulation of interleukin-8 biosynthetic process; negative regulation of muscle hyperplasia; negative regulation of transcription from RNA polymerase II promoter; negative regulation of caspase activity; positive regulation of hemoglobin biosynthetic process; positive regulation of protein metabolic process; negative regulation of cell proliferation; post-embryonic hemopoiesis; epidermis morphogenesis; regulation of cell differentiation; negative regulation of protein kinase B signaling cascade; response to retinoic acid; negative regulation of heterotypic cell-cell adhesion; stem cell maintenance; inhibition of NF-kappaB transcription factor; negative regulation of inflammatory response; epidermal cell differentiation; positive regulation of transcription from RNA polymerase II promoter; negative regulation of transcription, DNA-dependent; mesodermal cell fate determination; negative regulation of phosphoinositide 3-kinase cascade
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Reference #:
O43474 (UniProtKB)
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| Alt. Names/Synonyms: endothelial Kruppel-like zinc finger protein; Epithelial zinc finger protein EZF; EZF; GKLF; Gut-enriched krueppel-like factor; KLF4; Krueppel-like factor 4; Kruppel-like factor 4 (gut) |
| Gene Symbols: KLF4 |
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Molecular weight: 54,671 Da
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Basal Isoelectric point: 8.69
Predict pI for various phosphorylation states
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Protein-Specific Antibodies or siRNAs from Cell Signaling Technology®
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