transcriptase

Catalysis of the reaction: nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1); uses an RNA template.

3D polymerase activity, PB1 proteins, PB2 proteins, Q-beta replicase activity, RDRP, RNA nucleotidyltransferase (RNA-directed) activity, RNA replicase activity, RNA synthetase activity, RNA-dependent RNA polymerase activity, RNA-dependent RNA replicase activity, RNA-dependent ribonucleate nucleotidyltransferase activity, RNA-directed RNA polymerase activity, nucleoside-triphosphate:RNA nucleotidyltransferase (RNA-directed), phage f2 replicase, polymerase L, ribonucleic acid replicase activity, ribonucleic acid-dependent ribonucleate nucleotidyltransferase activity, ribonucleic acid-dependent ribonucleic acid polymerase activity, ribonucleic replicase activity, ribonucleic synthetase activity, transcriptase