BATF2 is a 274-amino acid nuclear protein with a molecular weight of 29 kDa (human isoform) . Key features include:
Domain structure: Contains a basic leucine zipper (bZIP) domain for DNA binding and protein dimerization .
Gene location: Chromosome 11 in humans (Entrez Gene ID: 116071), chromosome 7 in mice (Entrez Gene ID: 74481) .
BATF2 regulates proinflammatory cytokine production (e.g., TNF, IL-12p40) in macrophages during bacterial infections like Klebsiella pneumoniae and modulates immune pathologies in diseases such as tuberculosis and colitis .
Commercially available BATF2 antibodies are widely used in research, with key applications and performance data:
BATF2 enhances proinflammatory cytokine responses (e.g., TNF, CCL5) in macrophages during Klebsiella pneumoniae infection via TRIF and type I interferon signaling .
Deficiency in BATF2 increases bacterial burden in murine lung infection models, impairing early host defense .
The AP-1 family transcription factor BATF2 plays a critical role in regulating the differentiation of lineage-specific immune cells. Following infection, it participates in the differentiation of CD8+ thymic conventional dendritic cells. BATF2 forms heterodimers with JUN family proteins, binding to the DNA sequence 5'-TGA[CG]TCA-3' to modulate gene expression. Importantly, BATF2 selectively suppresses CCN1 transcription, thereby inhibiting downstream cell proliferation signals and suppressing anchorage-independent growth and invasion in various cancers, including breast cancer, malignant glioma, and metastatic melanoma. This suppressive effect is likely achieved by interfering with AP-1 binding to the CCN1 promoter.