Figure 2.

Diagram of key HTLV-1 accessory proteins with known motifs. PxxP = proline motifs predicted to be SH3 binding domains, LZip = leucine zipper like motif, DxxLL = putative AP-1 adaptor binding motif, IL-2R = region of IL-2 receptor binding, PxIxIT = calcineurin binding motif, NLS = nuclear localization motif, MTS = mitochondrial targeting signal.