Figure 6.
Superposition of free and E1-bound ubiquitin (bound mouse ubiquitin in red; free human ubiquitin in green). The binding of ubiquitin to E1 introduces a significant shift at the ubiquitin C-terminus.
Superposition of free and E1-bound ubiquitin (bound mouse ubiquitin in red; free human ubiquitin in green). The binding of ubiquitin to E1 introduces a significant shift at the ubiquitin C-terminus.