Schematic representation of truncated HCMVpp65 His-tag fusion proteins (Swiss-Prot: P06725). The full-length of HCMVpp65 is given in the top figure. Below that, six pp65 sub-fragments, pp651-167, pp65167-336, pp65336-561, pp65336-379, pp65379-455, pp65455-561, and four C terminal truncated peptides, pp65336-422, pp65336-439, pp65336-448, pp65336-455, are shown. The name of the plasmids which encoded pp65 sub-fragment proteins are given at the right. HCMVpp65, human cytomegalovirus phosphoprotein 65 (65 kD).