Figure 8. Tree diagram of the human herpesvirus kinases.

Amino acid sequence comparison was used to generate a tree diagram showing the interrelatedness of sixteen human herpesvirus kinases. The segregation of the kinases into the Us3, TK, and CHPK families, and the separation of the CHPK family into the UL13 and v-Cdk clades is shown. Line distances represent relative evolutionary separation. The commonly-used names for the human herpesviruses are shown (see Table 2).