ELF4
Function
Transcriptional activator that binds to DNA sequences containing the consensus 5'-WGGA-3'. Transactivates promoters of the hematopoietic growth factor genes CSF2, IL3, IL8, and of the bovine lysozyme gene. Acts synergistically with RUNX1 to transactivate the IL3 promoter (By similarity). Transactivates the PRF1 promoter in natural killer (NK) cells and CD8+ T cells (PubMed:34326534). Plays a role in the development and function of NK and NK T-cells and in innate immunity. Controls the proliferation and homing of CD8+ T-cells via the Kruppel-like factors KLF4 and KLF2 (By similarity). Controls cell senescence in a p53-dependent manner. Can also promote cellular transformation through inhibition of the p16 pathway. Is a transcriptional regulator of inflammation, controlling T-helper 17 (Th17) cells and macrophage inflammatory responses. Required for sustained transcription of anti-inflammatory genes, including IL1RN (PubMed:34326534, PubMed:35266071). Is a negative regulator of pro-inflammatory cytokines expression including IL17A, IL1B, IL6, TNFA and CXCL1 (PubMed:34326534, PubMed:35266071). Down-regulates expression of TREM1, a cell surface receptor involved in the amplification of inflammatory responses (By similarity) (PubMed:34326534, PubMed:35266071).
Involvement in disease
A chromosomal aberration involving ELF4 has been found in a case of acute myeloid leukemia (AML). Translocation t(X;21)(q25-26;q22) with ERG.
Autoinflammatory syndrome, familial, X-linked, Behcet-like 2
AIFBL2
An X-linked recessive, autoinflammatory disorder characterized by ulceration of the oral mucosa and skin inflammation. Additional variable features may include gastrointestinal ulceration, arthritis, recurrent fevers, and iron deficiency anemia. Disease onset is in early childhood.
None
The disease is caused by variants affecting the gene represented in this entry.
Sequence Similarities
Belongs to the ETS family.
Tissue Specificity
Abundantly expressed in the placenta and in a variety of myeloid leukemia cell lines. Moderate levels of expression in heart, lung, spleen, thymus, peripheral blood lymphocytes, ovary and colon. Lower levels of expression in Jurkat T-cells and other T-cell lines and no expression in brain.
Cellular localization
- Nucleus
- PML body
- Accumulation into PML nuclear bodies is mediated by PML.
Alternative names
ELFR, MEF, ELF4, ETS-related transcription factor Elf-4, E74-like factor 4, Myeloid Elf-1-like factor