Table 2. The structural alphabet states.
| State | Description |
|---|---|
| A | helix conformation |
| B | helix conformation |
| C | helix conformation |
| D | helix conformation |
| G | helix-like conformation |
| I | helix-like conformation |
| L | helix-like conformation |
| E | strand conformation |
| F | strand conformation |
| H | strand conformation |
| K | strand-like conformation |
| N | strand-like conformation |
| M a | highly curved coil b |
| S | highly curved coil b |
| V | highly curved coil b |
| W a | highly curved coil b |
| Q | moderately curved coil b |
| R | moderately curved coil b |
| T | flat coil b |
| P | flat coil b |
| X | flat coil b |
| Z a | flat coil b |
a These structural alphabet states showed no over- or under-representation in the context of the ubiquitination sites in our dataset.
b The coil conformations were classified into three groups: highly curved coil, moderately curved coil and flat coil. Note that this classification was not proposed by the original research, but by us in this study according to the similarity of the local conformations they represent.