_EC 3.4.12.- (not defined) 0 PDB entries  
EC 3.-.-.- Hydrolases. [21,051 PDB entries]
EC 3.4.-.- Acting on peptide bonds (peptide hydrolases). [6,852 PDB entries]
EC 3.4.12.- (not defined) [-]    
EC 3.4.12.1 Transferred entry: 3.4.16.5 and 3.4.16.6. [-]
EC 3.4.12.2 Transferred entry: 3.4.17.1. [-]
EC 3.4.12.3 Transferred entry: 3.4.17.2. [-]
EC 3.4.12.4 Transferred entry: 3.4.16.2. [-]
EC 3.4.12.5 Transferred entry: 3.5.1.28. [-]
EC 3.4.12.6 Transferred entry: 3.4.17.8. [-]
EC 3.4.12.7 Transferred entry: 3.4.17.3. [-]
EC 3.4.12.8 Transferred entry: 3.4.17.4. [-]
EC 3.4.12.9 Deleted entry. [-]
EC 3.4.12.10 Transferred entry: 3.4.19.9. [-]
EC 3.4.12.11 Transferred entry: 3.4.17.6. [-]
EC 3.4.12.12 Transferred entry: 3.4.16.5 and 3.4.16.6. [-]
EC 3.4.12.13 Deleted entry. [-]

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