Poly(A) Polymerase Beta

**Semantic type:** Amino Acid, Peptide, or Protein|Enzyme

**Definition:** Poly(A) polymerase beta (636 aa, ~72 kDa) is encoded by the human PAPOLB gene. This protein is involved in the addition of the polyA tail to the 3' end of mRNA.

**Synonyms:** - EC 2.7.7.19 - PAP-Beta - PAPOLB - Polynucleotide Adenylyltransferase Beta - Testis-Specific Poly(A) Polymerase