Figure 2.

Phylogenetic relationship of the UBC proteins of C. elegans (green), Drosophila (blue), and human (red). The dendrogram was prepared using the Phylip package of programs as described in Materials and methods. The major branches are separated by dotted lines and assigned Roman numerals that correspond to the numbering system on Figure 1. Some branches have a UBC label that indicates the most similar S. cerevisiae UBC. C. elegans UEV proteins are indicated with an asterisk.