Predicted SUMO consensus sites.

*Proteins from the two-step or one-step purification protocols, or total Drosophila melanogaster proteins (as annotated in the UniProtKB database) were analyzed using the SUMOsp program to yield the total number of SUMO conjugation sites that match the canonical ��KxE/D consensus motif for each dataset.#p-values were calculated using the hypergeometric distribution to compare the number of predicted sites per amino acid in the databases of purified proteins to the number of sites per amino acid in the Drosophila proteome.