_EC 3.4.2.- (not defined) 0 PDB entries  
EC 3.-.-.- Hydrolases. [22,079 PDB entries]
EC 3.4.-.- Acting on peptide bonds (peptide hydrolases). [7,224 PDB entries]
EC 3.4.2.- (not defined) [-]    
EC 3.4.2.1 Transferred entry: 3.4.17.1. [-]
EC 3.4.2.2 Transferred entry: 3.4.17.2. [-]
EC 3.4.2.3 Transferred entry: 3.4.17.4. [-]

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