ILF3 is a nuclear factor of activated T-cells and is an essential component for encapsidation.
Interleukin enhancer-binding factor 3 is a protein that in humans is encoded by the ILF3 gene. Nuclear factor of activated T-cells (NFAT) is a transcription factor required for T-cell expression of interleukin 2. In addition, NFAT can bind RNA and is an essential component for encapsidation and protein priming of hepatitis B viral polymerase. 
