Polynucleotide Adenylyltransferase

**Definition:** An enzyme that catalyzes the synthesis of polyadenylic acid from ATP. May be due to the action of RNA polymerase (EC 2.7.7.6) or polynucleotide adenylyltransferase (EC 2.7.7.19). EC 2.7.7.19.

**Tree numbers:** - D08.811.913.696.445.650

**Synonyms:** - ATP-RNA Adenylyltransferase - Poly A Polymerase - Polyadenylate Polymerase - Polyadenylate Synthetase