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Literature summary for 2.7.7.19 extracted from

  • Ueyama, H.
    Characterization of polyriboadenylate polymerase from Tetrahymena pyriformis (1979), J. Biochem., 86, 1301-1311.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
additional information not inhibitory: alpha-amanitin Tetrahymena pyriformis
NH4+ 0.1 M polymerase Ia and Ib completely inhibited, polymerase II: 68% inhibition; ammonium sulfate Tetrahymena pyriformis

Localization

Localization Comment Organism GeneOntology No. Textmining
nucleus polymerase II Tetrahymena pyriformis 5634
-

Metals/Ions

Metals/Ions Comment Organism Structure
Mn2+ required Tetrahymena pyriformis
Mn2+ Mg2+ can partially replace Mn2+ in the reaction with polymerase II Tetrahymena pyriformis

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
43000
-
polymerase Ia and Ib, gel filtration Tetrahymena pyriformis
95000
-
polymerase II, gel filtration Tetrahymena pyriformis

Organism

Organism UniProt Comment Textmining
Tetrahymena pyriformis
-
-
-

Purification (Commentary)

Purification (Comment) Organism
3 forms: Ia, Ib, II Tetrahymena pyriformis

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Tetrahymena pyriformis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + RNA primer required Tetrahymena pyriformis diphosphate + RNA(A)n
-
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