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name	polynucleotide adenylyltransferase activity
Accession	GO
Definition	Catalysis of the template-independent extension of the 3'- end of an RNA or DNA strand by addition of one adenosine molecule at a time. Cannot initiate a chain 'de novo'. The primer, depending on the source of the enzyme, may be an RNA or DNA fragment, or oligo(A) bearing a 3'-OH terminal group.
Enzyme Classification (EC) number	2.7.7.19 2.7.7.19
Molecules/complexes with this activity
Homologues of Poly(A) polymerase alpha [nucleoplasm] Homologues of Poly(A) polymerase alpha [nucleoplasm] Homologues of Poly(A) polymerase alpha [nucleoplasm] Homologues of Poly(A) polymerase alpha [nucleoplasm] Homologues of Poly(A) polymerase alpha [nucleoplasm] P25500 [nucleoplasm] UKEEGBCdRHRPPP Poly(A) polymerase alpha [nucleoplasm] UKEGBCdORHUR
Reactions catalysed by this activity
mRNA polyadenylation [Homo sapiens] mRNA polyadenylation [Canis familiaris] mRNA polyadenylation [Bos taurus] mRNA polyadenylation [Xenopus tropicalis] mRNA polyadenylation [Caenorhabditis elegans] mRNA polyadenylation [Arabidopsis thaliana] mRNA polyadenylation [Oryza sativa]
Is a specialisation of activities
adenylyltransferase activity GO nucleotidyltransferase activity GO transferase activity, transferring phosphorus-containing groups GO transferase activity GO catalytic activity GO molecular_function GO