_EC 3.4.99.- Endopeptidases of unknown catalytic mechanism. 0 PDB entries  
EC 3.-.-.- Hydrolases. [22,330 PDB entries]
EC 3.4.-.- Acting on peptide bonds (peptide hydrolases). [7,256 PDB entries]
EC 3.4.99.- Endopeptidases of unknown catalytic mechanism. [-]    
EC 3.4.99.1 Transferred entry: 3.4.23.28. [-]
EC 3.4.99.2 Deleted entry. [-]
EC 3.4.99.3 Deleted entry. [-]
EC 3.4.99.4 Transferred entry: 3.4.23.12. [-]
EC 3.4.99.5 Transferred entry: 3.4.24.3. [-]
EC 3.4.99.6 Transferred entry: 3.4.24.21. [-]
EC 3.4.99.7 Deleted entry. [-]
EC 3.4.99.8 Deleted entry. [-]
EC 3.4.99.9 Deleted entry. [-]
EC 3.4.99.10 Transferred entry: 3.4.24.56. [-]
EC 3.4.99.11 Deleted entry. [-]
EC 3.4.99.12 Deleted entry. [-]
EC 3.4.99.13 Transferred entry: 3.4.24.32. [-]
EC 3.4.99.14 Deleted entry. [-]
EC 3.4.99.15 Deleted entry. [-]
EC 3.4.99.16 Deleted entry. [-]
EC 3.4.99.17 Deleted entry. [-]
EC 3.4.99.18 Deleted entry. [-]
EC 3.4.99.19 Transferred entry: 3.4.23.15. [-]
EC 3.4.99.20 Deleted entry. [-]
EC 3.4.99.21 Deleted entry. [-]
EC 3.4.99.22 Transferred entry: 3.4.24.29. [-]
EC 3.4.99.23 Deleted entry. [-]
EC 3.4.99.24 Deleted entry. [-]
EC 3.4.99.25 Transferred entry: 3.4.23.21. [-]
EC 3.4.99.26 Transferred entry: 3.4.21.68 and 3.4.21.73. [-]
EC 3.4.99.27 Deleted entry. [-]
EC 3.4.99.28 Transferred entry: 3.4.21.60. [-]
EC 3.4.99.29 Deleted entry. [-]
EC 3.4.99.30 Transferred entry: 3.4.24.20. [-]
EC 3.4.99.31 Transferred entry: 3.4.24.15. [-]
EC 3.4.99.32 Transferred entry: 3.4.24.20. [-]
EC 3.4.99.33 Deleted entry. [-]
EC 3.4.99.34 Deleted entry. [-]
EC 3.4.99.35 Transferred entry: 3.4.23.36. [-]
EC 3.4.99.36 Transferred entry: 3.4.21.89. [-]
EC 3.4.99.37 Deleted entry. [-]
EC 3.4.99.38 Transferred entry: 3.4.23.17. [-]
EC 3.4.99.39 Deleted entry. [-]
EC 3.4.99.40 Deleted entry. [-]
EC 3.4.99.41 Transferred entry: 3.4.24.64. [-]
EC 3.4.99.42 Deleted entry. [-]
EC 3.4.99.43 Transferred entry: 3.4.23.42. [-]
EC 3.4.99.44 Transferred entry: 3.4.24.55. [-]
EC 3.4.99.45 Transferred entry: 3.4.24.56. [-]
EC 3.4.99.46 Transferred entry: 3.4.25.1. [-]

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