General Stability | Organism |
---|---|
unstable in absence of Mg2+ and glycerol, loss 0f 70% activity during gel filtration | Arabidopsis thaliana |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
adenine | - |
Arabidopsis thaliana | |
alpha-D-5-phosphoribose 1-diphosphate | substrate inhibition | Arabidopsis thaliana | |
AMP | - |
Arabidopsis thaliana | |
Ba2+ | in presence of MnCl2 | Arabidopsis thaliana | |
benzyladenine | competitive | Arabidopsis thaliana | |
Ca2+ | in presence of MnCl2 | Arabidopsis thaliana | |
Cd2+ | in presence of MnCl2 | Arabidopsis thaliana | |
Hg2+ | in presence of MnCl2 | Arabidopsis thaliana | |
isopentenyladenine | - |
Arabidopsis thaliana | |
Mg2+ | inhibition in presence of MnCl2, activation in absence | Arabidopsis thaliana | |
additional information | no substrate inhibition by adenine | Arabidopsis thaliana |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0045 | - |
adenine | at 37°C | Arabidopsis thaliana | |
0.29 | - |
5-phospho-alpha-D-ribose 1-diphosphate | at 37°C | Arabidopsis thaliana | |
0.73 | - |
benzyladenine | at 37°C | Arabidopsis thaliana |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Ca2+ | inhibition in presence of MnCl2 | Arabidopsis thaliana | |
Mg2+ | absolute requirement | Arabidopsis thaliana | |
Mg2+ | enzyme requires Mn2+ or Mg2+ | Arabidopsis thaliana | |
Mn2+ | best activating divalent cation | Arabidopsis thaliana | |
Mn2+ | activity depends on presence of divalent cations, Mn2+ or Mg2+ activates | Arabidopsis thaliana | |
additional information | activity absolutely depends on presence of divalent cations | Arabidopsis thaliana |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
54000 | - |
gel filtration | Arabidopsis thaliana |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Arabidopsis thaliana | - |
- |
- |
Purification (Comment) | Organism |
---|---|
- |
Arabidopsis thaliana |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
leaf | - |
Arabidopsis thaliana | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
300 | - |
purified enzyme, pH 8.8, 37°C | Arabidopsis thaliana |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
5-amino-4-imidazolecarboxamide + 5-phospho-alpha-D-ribose 1-diphosphate | - |
Arabidopsis thaliana | 5-amino-4-imidazolecarboxamide ribotide + diphosphate | - |
? | |
adenine + 5-phospho-alpha-D-ribose 1-diphosphate | - |
Arabidopsis thaliana | AMP + diphosphate | - |
? | |
benzyladenine + 5-phospho-alpha-D-ribose 1-diphosphate | - |
Arabidopsis thaliana | benzyladenosine 5'-phosphate + diphosphate | - |
? | |
isopentenyladenine + 5-phospho-alpha-D-ribose 1-diphosphate | - |
Arabidopsis thaliana | isopentenyladenosine 5'-phosphate + diphosphate | - |
? |
Subunits | Comment | Organism |
---|---|---|
dimer | - |
Arabidopsis thaliana |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
60 | - |
- |
Arabidopsis thaliana |
65 | - |
- |
Arabidopsis thaliana |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
58 | - |
heat denaturation, 35% ammonium sulfate protects | Arabidopsis thaliana |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
additional information | - |
temperature dependent | Arabidopsis thaliana |
7.8 | - |
at 60°C | Arabidopsis thaliana |
8.8 | - |
at 37°C | Arabidopsis thaliana |
Ki Value [mM] | Ki Value maximum [mM] | Inhibitor | Comment | Organism | Structure |
---|---|---|---|---|---|
1.96 | - |
5-phosphoribose 1-diphosphate | at 37°C | Arabidopsis thaliana |