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Literature summary for 2.7.4.14 extracted from

  • Ruffner, B.W.; Anderson, E.P.
    Adenosine triphosphate: uridine monophosphate-cytidine monophosphate phosphotransferase from Tetrahymena pyriformis (1969), J. Biol. Chem., 244, 5994-6002.
    View publication on PubMed

General Stability

General Stability Organism
bovine serum albumin, 0.1 mg/ml, is completely effective in preventing the loss of activity in the dilute preparation Tetrahymena pyriformis
three-fold dilution of a preparation of 0.2 mg of protein per ml results in less of 50% of the activity in 1 h Tetrahymena pyriformis

Inhibitors

Inhibitors Comment Organism Structure
ADP
-
Tetrahymena pyriformis
CDP competitive Tetrahymena pyriformis
dADP
-
Tetrahymena pyriformis
dCDP
-
Tetrahymena pyriformis
dTDP
-
Tetrahymena pyriformis

Organism

Organism UniProt Comment Textmining
Tetrahymena pyriformis
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Tetrahymena pyriformis

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
27.5
-
-
Tetrahymena pyriformis

Storage Stability

Storage Stability Organism
4°C, 0.2 mg/ml, 2 weeks, 20% loss of activity Tetrahymena pyriformis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + CMP
-
Tetrahymena pyriformis ADP + CDP
-
?
ATP + dCMP
-
Tetrahymena pyriformis ADP + dCDP
-
?
ATP + UMP
-
Tetrahymena pyriformis ADP + UDP
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7 8
-
Tetrahymena pyriformis

pH Range

pH Minimum pH Maximum Comment Organism
6.2 8.6 50% of maximal activity at pH 6.2 and at pH 8.6 Tetrahymena pyriformis