N-Glycosidases that remove adenines from RIBOSOMAL RNA, depurinating the conserved alpha-sarcin loop of 28S RIBOSOMAL RNA. They often consist of a toxic A subunit and a binding lectin B subunit. They may be considered as PROTEIN SYNTHESIS INHIBITORS. They are found in many PLANTS and have cytotoxic and antiviral activity.

Synonyms: EC 3.2.2.22, Polynucleotide Adenosine Glycosidase, Proteins, Ribosome Inactivating, Glycosidase, Polynucleotide Adenosine, N-Glycosylases, rRNA, RNA Glycosylase, RNA N-Glycosidase, Ribosome Inactivating Proteins, N-Glycosidase, RNA, RNA N Glycosidase, Glycosylase, RNA, rRNA N-Glycosylases, rRNA N Glycosylases, Adenosine Glycosidase, Polynucleotide, Inactivating Proteins, Ribosome, RIP (Ribosome Inactivating Proteins)