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Interferon action: RNA cleavage pattern of a (2'-5')oligoadenylate--dependent endonuclease
Science (New York, N.Y.)
|May 29, 1981
Abstract:
One of the mediators of interferon action is a latent endoribonuclease (ribonuclease L) that is activated by (2'-5')oligoadenylates. Among the homopolymers of the four common ribonucleotides, activated ribonuclease L degrades at an appreciable rate only polyuridylic acid. In two natural RNA's tested the most frequent ribonuclease L cleavages occur after UA, UG, and UU (A, adenine; U, uracil; and G, guanine) and much less frequent cleavages after CA and AC (C, cytosine).