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Polyadenylation of the 3-prime ends of eukaryotic mRNAs is a key event that takes place in the nucleus during maturation of mRNA. The reaction includes endoribonucleolytic cleavage of the pre-RNA at the poly(A) site that leads to synthesis of the poly(A) tail at the 3-prime end of the upstream cleavage product. The poly(A) polymerase (PAP) is required The adenosine addition reaction depends on poly(A) polymerase (PAP) activity. The testis express PAP-beta (TPAP) in the cytoplasm of spermatogenic cells. The adenosine addition function of PAP-beta plays a critical role in male germ cell production. PAP-beta-deficient transgenic mice display impaired expression of haploid-specific genes that are necessary for spermatogenesis. The intronless gene encoding human PAP-beta maps to chromosome 7p22.3.
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Protein Aliases: Neo-PAP; Neo-poly(A) polymerase; nuclear poly(A) polymerase gamma; PAP-alpha; PAP-beta; PAP-gamma; Poly(A) polymerase alpha; Poly(A) polymerase beta; poly(A) polymerase beta (testis specific); Poly(A) polymerase gamma; Polynucleotide adenylyltransferase; Polynucleotide adenylyltransferase alpha; Polynucleotide adenylyltransferase beta; Polynucleotide adenylyltransferase gamma; Signal recognition particle RNA-adenylating enzyme; SRP 3'-adenylating protein; SRP RNA 3' adenylating enzyme/pap2; SRP RNA 3'-adenylating enzyme; SRP RNA-adenylating enzyme; Testis-specific poly(A) polymerase
Gene Aliases: 9630006B20Rik; PAP; PAP2; PAPG; PapIII; Paplob; PAPOLA; Papola-ps; PAPOLB; PAPOLG; PAPT; Plap; Plap-ps; TPAP
UniProt ID: (Human) P51003, (Human) Q9NRJ5, (Human) Q9BWT3, (Mouse) Q61183, (Mouse) Q9WVP6, (Mouse) Q6PCL9
Entrez Gene ID: (Human) 10914, (Human) 56903, (Human) 64895, (Mouse) 18789, (Rat) 314417, (Rat) 304300, (Mouse) 56522, (Mouse) 216578, (Rat) 305586
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