General Stability | Organism |
---|---|
dilution inactivates | Klebsiella aerogenes |
freezing and thawing inactivates | Klebsiella aerogenes |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
L-tryptophan | - |
Escherichia coli | |
L-tryptophan | when phosphoribosyltransferase is not an aggregate with anthranilate synthase, it is not subject to tryptophan inhibition, inhibitor site is on the anthranilate synthase component | Klebsiella aerogenes |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | required | Klebsiella aerogenes |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
90000 | - |
tryptophan auxotroph with no anthranilate synthase activity, sucrose density gradient sedimentation | Klebsiella aerogenes |
170000 | - |
sucrose density gradient sedimentation, complex with anthranilate synthase activity | Klebsiella aerogenes |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
anthranilate + 5-phospho-alpha-D-ribose 1-diphosphate | Escherichia coli | enzyme of tryptophan biosynthesis | N-(5-phospho-D-ribosyl)-anthranilate + diphosphate | - |
? | |
anthranilate + 5-phospho-alpha-D-ribose 1-diphosphate | Klebsiella aerogenes | enzyme of tryptophan biosynthesis | N-(5-phospho-D-ribosyl)-anthranilate + diphosphate | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Escherichia coli | - |
K-12 | - |
Klebsiella aerogenes | - |
- |
- |
Purification (Comment) | Organism |
---|---|
partial, enzyme complex | Klebsiella aerogenes |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
734 | - |
- |
Klebsiella aerogenes |
Storage Stability | Organism |
---|---|
-15°C, crude extract is stable for 2 years | Klebsiella aerogenes |
4°C, 10% loss of activity after 2 months | Klebsiella aerogenes |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
anthranilate + 5-phospho-alpha-D-ribose 1-diphosphate | - |
Escherichia coli | N-(5-phospho-D-ribosyl)-anthranilate + diphosphate | - |
? | |
anthranilate + 5-phospho-alpha-D-ribose 1-diphosphate | - |
Klebsiella aerogenes | N-(5-phospho-D-ribosyl)-anthranilate + diphosphate | - |
? | |
anthranilate + 5-phospho-alpha-D-ribose 1-diphosphate | enzyme of tryptophan biosynthesis | Escherichia coli | N-(5-phospho-D-ribosyl)-anthranilate + diphosphate | - |
? | |
anthranilate + 5-phospho-alpha-D-ribose 1-diphosphate | enzyme of tryptophan biosynthesis | Klebsiella aerogenes | N-(5-phospho-D-ribosyl)-anthranilate + diphosphate | - |
? |
Subunits | Comment | Organism |
---|---|---|
More | in some organisms, this enzyme is part of a multifunctional protein together with one or more other components of the system for biosynthesis of tryptophan: EC 4.1.1.48, EC 4.1.3.27, EC 4.2.1.20, EC 5.3.1.24 | Klebsiella aerogenes |
More | anthranilate synthase-phosphoribosylanthranilate transferase complex exists in Citrobacter species in all other bacteria examined phosphoribosylanthranilate transferase and anthranilate synthase are separate enzyme molecules | Escherichia coli |
More | anthranilate synthase-phosphoribosylanthranilate transferase complex exists in Citrobacter species in all other bacteria examined phosphoribosylanthranilate transferase and anthranilate synthase are separate enzyme molecules | Klebsiella aerogenes |
Synonyms | Comment | Organism |
---|---|---|
More | in some organisms, this enzyme is part of a multifunctional protein together with one or more other components of the system for biosynthesis of tryptophan (EC 4.1.1.48, EC 4.1.3.27, EC 4.2.1.20, EC 5.3.1.24) | Klebsiella aerogenes |