_EC 3.1.22.- Endodeoxyribonucleases producing other than 5'-phosphomonoesters. 18 PDB entries  
EC 3.-.-.- Hydrolases. [20,839 PDB entries]
EC 3.1.-.- Acting on ester bonds. [5,948 PDB entries]
EC 3.1.22.- Endodeoxyribonucleases producing other than 5'-phosphomonoesters. [18 PDB entries]    
EC 3.1.22.1 Deoxyribonuclease Ii. [-]
EC 3.1.22.2 Aspergillus deoxyribonuclease K(1). [-]
EC 3.1.22.3 Transferred entry: 3.1.21.7. [-]
EC 3.1.22.4 Crossover junction endodeoxyribonuclease. [18 PDB entries]
EC 3.1.22.5 Deoxyribonuclease X. [-]

[-] signifies that there are no PDB entries for the given enzyme subclass