KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.009 | - |
2-(formamido)-N1-(5-phosphoribosyl)acetamidine | - |
Gallus gallus | |
0.078 | - |
ATP | - |
Gallus gallus |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
K+ | absolutely required | Gallus gallus | |
K+ | optimal concentration: 150 mM | Gallus gallus | |
Mg2+ | optimal concentration: 20 mM | Gallus gallus | |
Mg2+ | absolutely required | Gallus gallus |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
133000 | - |
sucrose density gradient ultracentrifugation, trifunctional enzyme: AIR synthase, glycinamide ribonucleotide synthetase, and glycinamide ribonucleotide transformylase | Gallus gallus |
330000 | - |
gel filtration, trifunctional enzyme: aminoimidazole ribonucleotide synthase, glycinamide ribonucleotide synthetase, and glycineamide ribonucleotide transformylase | Gallus gallus |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Gallus gallus | - |
trifunctional enzyme with AIR synthetase activity, phosphoribosylglycinamide synthetase activity, and phosphoribosylglycinamide transformylase activity | - |
Purification (Comment) | Organism |
---|---|
trifunctional enzyme with AIR synthetase activity, phosphoribosylglycinamide synthetase activity, and phosphoribosylglycinamide transformylase activity | Gallus gallus |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
liver | - |
Gallus gallus | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
0.43 | - |
- |
Gallus gallus |
Storage Stability | Organism |
---|---|
-20°C, stable for many weeks | Gallus gallus |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + 2-(formamido)-N1-(5-phospho-D-ribosyl)acetamidine | ATP in form of MgATP2- | Gallus gallus | ADP + phosphate + 5-amino-1-(5-phospho-D-ribosyl)imidazole | - |
? | |
ATP + 2-(formamido)-N1-(5-phosphoribosyl)acetamidine | ir | Gallus gallus | ADP + phosphate + 1-(5-phosphoribosyl)-5-aminoimidazole | - |
? |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
4.7 | - |
- |
Gallus gallus |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
7.4 | 8.1 | about 90% of maximal activity at pH 7.4 and 8.1 | Gallus gallus |