EC Number | Protein Variants | Comment | Organism |
---|---|---|---|
6.3.1.21 | additional information | isolation of mutants defective in GAR transformylase activity, generation of single and double null mutants of genes purT and purN, phenotypes, overview | Escherichia coli |
EC Number | Metals/Ions | Comment | Organism | Structure |
---|---|---|---|---|
6.3.1.21 | Mg2+ | required | Escherichia coli |
EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
6.3.1.21 | ATP + formate + N1-(5-phospho-beta-D-ribosyl)glycinamide | Escherichia coli | - |
ADP + phosphate + N2-formyl-N1-(5-phospho-beta-D-ribosyl)glycinamide | - |
? |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
6.3.1.21 | Escherichia coli | P33221 | - |
- |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
6.3.1.21 | ATP + formate + N1-(5-phospho-beta-D-ribosyl)glycinamide | - |
Escherichia coli | ADP + phosphate + N2-formyl-N1-(5-phospho-beta-D-ribosyl)glycinamide | - |
? |
EC Number | Synonyms | Comment | Organism |
---|---|---|---|
6.3.1.21 | GAR transformylase | - |
Escherichia coli |
6.3.1.21 | GAR transformylase T | - |
Escherichia coli |
6.3.1.21 | glycinamide ribonucleotide transformylase | - |
Escherichia coli |
6.3.1.21 | PurT | - |
Escherichia coli |
EC Number | Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|---|
6.3.1.21 | 37 | - |
assay at | Escherichia coli |
EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|---|
6.3.1.21 | 8 | - |
assay at | Escherichia coli |
EC Number | Cofactor | Comment | Organism | Structure |
---|---|---|---|---|
6.3.1.21 | ATP | - |
Escherichia coli |
EC Number | Organism | Comment | Expression |
---|---|---|---|
6.3.1.21 | Escherichia coli | regulation of the level of GAR transformylase T is controlled by the PurR protein and hypoxanthine. The purT operator sequence for PurR binding is similar to that reported for several pur regulons, and the gene is a single gene operon | additional information |
EC Number | General Information | Comment | Organism |
---|---|---|---|
6.3.1.21 | malfunction | mutants defective in synthesis of purN- and purT-encoded enzymes are isolated. Only strains defective in both genes require an exogenous purine source for growth. Determination of GAR transformylase T activity in vitro requires formate as the Cl donor. Growth of purN mutants is inhibited by glycine. Under these conditions GAR accumulates. Addition of purine compounds or formate prevents growth inhibition | Escherichia coli |
6.3.1.21 | metabolism | purN- and purT-encoded enzymes are required for synthesis of N2-formyl-N1-(5-phospho-beta-D-ribosyl)glycinamide, both enzymes may function to ensure normal purine biosynthesis. Regulation of the level of GAR transformylase T is controlled by the PurR protein and hypoxanthine. The GAR transformylase T-catalyzed reaction might provide a pathway by which formate is utilized or rescued as a C1 unit, and the activity of the two different GAR transformylases might be determined by the availability of the cofactors, formate and 10-formyl-THF | Escherichia coli |