Transcription factor that specifically activates the expression of the CD40 receptor and its ligand CD40L/CD154, two cell surface molecules on lymphocytes that are critical for antigen-dependent-B-cell development. Binds to A/T-rich promoters.
AKNA protein expression
Predominantly expressed by lymphoid tissues. Highly expressed in the spleen, lymph nodes and peripheral blood leukocytes, expressed at lower level in the thymus. Mainly expressed by germinal center B-lymphocytes, a stage in which receptor and ligand interactions are crucial for B-lymphocyte maturation. Expressed by B- and T-lymphocytes, Natural killer cells and CD1a(+)CD14(-) but not CD1a(-)CD14(+) dendritic cells. Weakly or not expressed in fetal liver and in adult bone marrow.
AKNA cDNA / gene is a gene with protein product which located on 9q32. The AKNA gene is conserved in chimpanzee, Rhesus monkey, dog, cow, mouse, and rat. 177 organisms have orthologs with human gene AKNA.