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Literature summary for 2.6.1.57 extracted from

  • Paris, C.G.; Magasanik, B.
    Purification and properties of aromatic amino acid aminotransferase from Klebsiella aerogenes (1981), J. Bacteriol., 145, 266-271.
    View publication on PubMedView publication on EuropePMC

Inhibitors

Inhibitors Comment Organism Structure
Aminooxyacetate
-
Klebsiella aerogenes

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.02
-
phenylpyruvate cosubstrate glutamate Klebsiella aerogenes
0.08
-
L-phenylalanine cosubstrate 2-oxoglutarate Klebsiella aerogenes
0.12
-
oxaloacetate cosubstrate tryptophan Klebsiella aerogenes
0.6
-
L-tryptophan cosubstrate 2-oxoglutarate Klebsiella aerogenes
2.08
-
2-oxoglutarate cosubstrate tryptophan Klebsiella aerogenes
70
-
L-histidine cosubstrate 2-oxoglutarate Klebsiella aerogenes

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
42000
-
2 * 42000, SDS-PAGE Klebsiella aerogenes
90000
-
gel filtration Klebsiella aerogenes

Organism

Organism UniProt Comment Textmining
Klebsiella aerogenes
-
aromatic aminotransferase I
-

Purification (Commentary)

Purification (Comment) Organism
protamine, ammonium sulfate, DEAE-Sephadex, ultrogel AcA44, hydroxylapatite, isoelectric focusing Klebsiella aerogenes

Storage Stability

Storage Stability Organism
4°C, glycerol, 10% stabilizes during storage Klebsiella aerogenes

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-histidine + 2-oxoglutarate
-
Klebsiella aerogenes 3-(1H-imidazol-4-yl)-2-oxopropanoate + L-glutamate
-
?
L-phenylalanine + 2-oxoglutarate
-
Klebsiella aerogenes phenylpyruvate + L-glutamate
-
?
L-tryptophan + 2-oxoglutarate
-
Klebsiella aerogenes 3-indole-2-oxopropanoate + L-glutamate
-
?
L-tryptophan + oxaloacetate
-
Klebsiella aerogenes 3-indole-2-oxopropanoate + L-aspartate
-
?

Subunits

Subunits Comment Organism
dimer 2 * 42000, SDS-PAGE Klebsiella aerogenes

Synonyms

Synonyms Comment Organism
aromatic amino transferase I
-
Klebsiella aerogenes

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
55
-
10 min, 35% loss of activity Klebsiella aerogenes

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8
-
with tryptophan Klebsiella aerogenes

pH Range

pH Minimum pH Maximum Comment Organism
6 9.6 approx. 50% of maximal activity at pH 6.0 and pH 9.6 Klebsiella aerogenes

Cofactor

Cofactor Comment Organism Structure
pyridoxal 5'-phosphate a pyridoxal phosphate protein Klebsiella aerogenes