EC Number |
Substrates |
Organism |
Products |
Reversibility |
---|
6.3.4.18 | ATP + 5-amino-1(5-phospho-D-ribosyl)imidazole + HCO3- |
- |
Escherichia coli |
ADP + phosphate + 5-carboxyamino-1-(5-phospho-D-ribosyl)imidazole |
- |
? |
6.3.4.18 | ATP + 5-amino-1(5-phospho-D-ribosyl)imidazole + HCO3- |
catalytic steps are the formation of an acyl phosphate intermediate upon ATP cleavage, followed by the nucleophilic attack on the carboxyl carbon of the intermediates by the amino nitrogen of the mononucleotides, formation of acyl phosphate intermediates |
Escherichia coli |
ADP + phosphate + 5-carboxyamino-1-(5-phospho-D-ribosyl)imidazole |
- |
? |
6.3.4.18 | ATP + 5-amino-1-(5-phospho-D-ribosyl)imidazole + HCO3- |
- |
Escherichia coli |
ADP + phosphate + 5-carboxyamino-1-(5-phospho-D-ribosyl)imidazole |
- |
? |
6.3.4.18 | ATP + 5-amino-1-(5-phospho-D-ribosyl)imidazole + HCO3- |
assay at pH 7.5, 37°C |
Escherichia coli |
ADP + 5-carboxyamino-1-(5-phospho-D-ribosyl)imidazole + phosphate |
- |
? |
6.3.4.18 | ATP + 5-amino-1-(5-phospho-D-ribosyl)imidazole + HCO3- |
assay at pH 7.5, 37°C |
Aspergillus clavatus |
ADP + 5-carboxyamino-1-(5-phospho-D-ribosyl)imidazole + phosphate |
- |
? |
6.3.4.18 | ATP + 5-amino-1-(5-phospho-D-ribosyl)imidazole + HCO3- + H+ |
- |
Staphylococcus aureus |
ADP + phosphate + 5-carboxyamino-1-(5-phospho-D-ribosyl)imidazole |
- |
? |
6.3.4.18 | ATP + 5-amino-1-(5-phospho-D-ribosyl)imidazole + HCO3- + H+ |
- |
Aspergillus clavatus |
ADP + phosphate + 5-carboxyamino-1-(5-phospho-D-ribosyl)imidazole |
- |
? |
6.3.4.18 | ATP + 5-amino-1-(5-phospho-D-ribosyl)imidazole + HCO3- + H+ |
- |
Aspergillus clavatus DSM 816 |
ADP + phosphate + 5-carboxyamino-1-(5-phospho-D-ribosyl)imidazole |
- |
? |
6.3.4.18 | ATP + 5-amino-1-(5-phospho-D-ribosyl)imidazole + HCO3- + H+ |
- |
Staphylococcus aureus Newman |
ADP + phosphate + 5-carboxyamino-1-(5-phospho-D-ribosyl)imidazole |
- |
? |
6.3.4.18 | more |
the purEK operon is regulated by the purR gene product |
Escherichia coli |
? |
- |
? |