Hydrolases
Acting on ester bonds
Exoribonucleases producing 5'-phosphomonoesters
The following ENZYME entries belong to class 3.1.13.-:
3.1.13.1 Exoribonuclease II 3.1.13.2 Exoribonuclease H 3.1.13.3 Oligonucleotidase 3.1.13.4 Poly(A)-specific ribonuclease 3.1.13.5 Ribonuclease D