Poly(A) Polymerase catalyzes the template independent addition of AMP from ATP to the 3´ end of RNA

Isolated from a recombinant source
Applications include 3′ labeling of RNA with ATP or Cordycepin and poly(A) tailing of RNA for cloning or affinity purification
Enhances translation of RNA transferred into eukaryotic cells
Tested for the absence of DNases and RNases