Figure 2.

This figure shows the deposited crystal structure of restriction endonuclease EcoRII mutant R88A in the European Molecular Biology Laboratory (EMBL) Protein database (entry 1nas6). A detailed structure of the N-domain, which contains the effector-binding cleft of EcoRII with putative DNA-binding residues H36, Y41, K92, R94, E96, K97 and R98, can be found from work by Zhou et al. [34].