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Literature summary extracted from
- A bifunctional dCTP deaminase-dUTP nucleotidohydrolase from the hyperthermophilic archaeon Methanocaldococcus jannaschii (2003), J. Biol. Chem., 278, 20667-20672.
Cloned(Commentary)
| EC Number | Cloned (Comment) | Organism |
|---|---|---|
| 3.5.4.13 | expression in Escherichia coli | Methanocaldococcus jannaschii |
Inhibitors
| EC Number | Inhibitors | Comment | Organism | Structure |
|---|---|---|---|---|
| 3.5.4.13 | dTTP | inhibition of deamination reaction | Methanocaldococcus jannaschii |  |
| 3.5.4.13 | dUTP | inhibition of deamination reaction | Methanocaldococcus jannaschii | |
KM Value [mM]
| EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|---|
| 3.5.4.13 | additional information | - |
additional information | for dUTP, Km-value in millimolar range | Methanocaldococcus jannaschii |
Metals/Ions
| EC Number | Metals/Ions | Comment | Organism | Structure |
|---|---|---|---|---|
| 3.5.4.13 | Mg2+ | absolutely required | Methanocaldococcus jannaschii | |
Molecular Weight [Da]
| EC Number | Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|---|
| 3.5.4.13 | 23300 | - |
x * 23400, deduced from gene sequence, x * 23300, mass spectrometry | Methanocaldococcus jannaschii |
| 3.5.4.13 | 23400 | - |
x * 23400, deduced from gene sequence, x * 23300, mass spectrometry | Methanocaldococcus jannaschii |
Natural Substrates/ Products (Substrates)
| EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.5.4.13 | additional information | Methanocaldococcus jannaschii | bifunctionality of enzyme avoids release of toxic UTP within cells | ? | - |
? | |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 3.5.4.13 | Methanocaldococcus jannaschii | - |
bifunctional enzyme dCTP deaminase-dUTP nucleotidohydrolase | - |
Purification (Commentary)
| EC Number | Purification (Comment) | Organism |
|---|---|---|
| 3.5.4.13 | recombinant protein | Methanocaldococcus jannaschii |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.5.4.13 | dCTP + H2O | - |
Methanocaldococcus jannaschii | dUTP + NH3 | - |
? | |
| 3.5.4.13 | ddCTP + H2O | deamination at the same rate as dCTP | Methanocaldococcus jannaschii | ddUTP + NH3 | - |
? | |
| 3.5.4.13 | dUTP + 2 H2O | - |
Methanocaldococcus jannaschii | dUMP + 2 phosphate | - |
? | |
| 3.5.4.13 | additional information | bifunctionality of enzyme avoids release of toxic UTP within cells | Methanocaldococcus jannaschii | ? | - |
? | |
Subunits
| EC Number | Subunits | Comment | Organism |
|---|---|---|---|
| 3.5.4.13 | ? | x * 23400, deduced from gene sequence, x * 23300, mass spectrometry | Methanocaldococcus jannaschii |
Ki Value [mM]
| EC Number | Ki Value [mM] | Ki Value maximum [mM] | Inhibitor | Comment | Organism | Structure |
|---|---|---|---|---|---|---|
| 3.5.4.13 | 0.1 | - |
dTTP | pH 6.8, 25°C | Methanocaldococcus jannaschii | |
| 3.5.4.13 | 0.5 | - |
dUTP | - |
Methanocaldococcus jannaschii | |
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