Ribonucleases are involved with the maturation, quality control and degradation of RNA molecules.


Exoribonucleases mature and degrade RNA either hydrolytic or phosphorlytic in the 3' to 5' direction, processive or non-processively.

Endoribonucleases cut at specific sites between ribonucleotides in ssRNA or dsRNA to process precursors into mature structural RNAs or to intiate the proces of degradation, often through the degradosome.