- CAT tailing
The C-terminal elongation of 60S-anchored stalled nascent polypeptide chains with untemplated alanine and threonine tails (CAT tails). CAT tails participate in the recognition of stalled nascent chains by the ribosome quality control sytem.
- nucleoside oxidase activity
Catalysis of the reactions: inosine + O2 = 9-riburonosylhypoxanthine + 2 H2O; (1a) 2 inosine + O2 = 2 5'-dehydroinosine + 2 H2O, and (1b) 2 5'-dehydroinosine + O2 = 2 9-riburonosylhypoxanthine + 2 H2O.