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Literature summary extracted from

  • Martin, R.G.; Goldberger, R.F.
    Imidazolylacetolphosphate:L-glutamate aminotransferase. Purification and physical properties (1967), J. Biol. Chem., 242, 1168-1174.
    View publication on PubMed

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
2.6.1.9 59000
-
equilibrium centrifugation, pyridoxal phosphate analysis, spectrophotometric assay, phosphate analysis, viscometry Salmonella enterica subsp. enterica serovar Typhimurium

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2.6.1.9 3-(imidazol-4-yl)-2-oxopropyl phosphate + L-glutamate Salmonella enterica subsp. enterica serovar Typhimurium eighth step in histidine biosynthesis L-histidinol phosphate + 2-oxoglutarate
-
?

Organism

EC Number Organism UniProt Comment Textmining
2.6.1.9 Salmonella enterica subsp. enterica serovar Typhimurium
-
derepressed histidine auxotroph
-

Purification (Commentary)

EC Number Purification (Comment) Organism
2.6.1.9 from derepressed histidine auxotrophs, 95% pure Salmonella enterica subsp. enterica serovar Typhimurium

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.6.1.9 1885
-
-
Salmonella enterica subsp. enterica serovar Typhimurium

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.6.1.9 3-(imidazol-4-yl)-2-oxopropyl phosphate + L-glutamate eighth step in histidine biosynthesis Salmonella enterica subsp. enterica serovar Typhimurium L-histidinol phosphate + 2-oxoglutarate
-
?
2.6.1.9 L-histidinol phosphate + 2-oxoglutarate
-
Salmonella enterica subsp. enterica serovar Typhimurium 3-(imidazol-4-yl)-2-oxopropyl phosphate + L-Glu
-
?

Subunits

EC Number Subunits Comment Organism
2.6.1.9 More marked tendency to polymerize upon ageing Salmonella enterica subsp. enterica serovar Typhimurium

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
2.6.1.9 37
-
assay at Salmonella enterica subsp. enterica serovar Typhimurium

pH Stability

EC Number pH Stability pH Stability Maximum Comment Organism
2.6.1.9 6
-
unstable below Salmonella enterica subsp. enterica serovar Typhimurium

Cofactor

EC Number Cofactor Comment Organism Structure
2.6.1.9 pyridoxal 5'-phosphate a pyridoxal phosphate protein Salmonella enterica subsp. enterica serovar Typhimurium
2.6.1.9 pyridoxal 5'-phosphate 1 pyridoxal phosphate group associated with each molecule of enzyme Salmonella enterica subsp. enterica serovar Typhimurium