_EC 3.1.26.- Endoribonucleases producing 5'-phosphomonoesters. 2,363 PDB entries  
EC 3.-.-.- Hydrolases. [52,127 PDB entries]
EC 3.1.-.- Acting on ester bonds. [12,902 PDB entries]
EC 3.1.26.- Endoribonucleases producing 5'-phosphomonoesters. [2,363 PDB entries]
EC 3.1.26.1 Physarum polycephalum ribonuclease. [-]
EC 3.1.26.2 ribonuclease alpha. [-]
EC 3.1.26.3 ribonuclease Iii. [84 PDB entries]
EC 3.1.26.4 ribonuclease H. [451 PDB entries]
EC 3.1.26.5 ribonuclease P. [67 PDB entries]
EC 3.1.26.6 ribonuclease Iv. [-]
EC 3.1.26.7 ribonuclease P4. [-]
EC 3.1.26.8 ribonuclease M5. [3 PDB entries]
EC 3.1.26.9 ribonuclease [poly-(U)-specific]. [-]
EC 3.1.26.10 ribonuclease Ix. [-]
EC 3.1.26.11 ribonuclease Z. [17 PDB entries]
EC 3.1.26.12 ribonuclease E. [22 PDB entries]
EC 3.1.26.13 retroviral ribonuclease H. [1,668 PDB entries]
EC 3.1.26.n1 Transferred entry: 3.1.26.12. [-]
EC 3.1.26.n2 argonaute-2. [51 PDB entries]

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