Figure 3.

The preferences for sequence and structure of ubiquitination sites A. Position distribution of ubiquitination and non-ubiquitination sites in N-terminus, middle, or C-terminus in protein sequences. B. Distribution of secondary structures of ubiquitination and non-ubiquitination sites in α-helix, β-strand, and coil. C. Distribution of ubiquitination and non-ubiquitination sites in exposed and buried regions. D. Distribution of ubiquitination and non-ubiquitination sites in disordered and ordered regions.