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Literature summary for 2.6.1.1 extracted from

  • Yagi, T.; Shounaka, M.; Yamamoto, S.
    Distribution of aspartate aminotransferase activity in yeasts, and purification and characterization of mitochondrial and cytosolic isoenzymes from Rhodotorula minuta [corrected] [published erratum appears in J Biochem (Tokyo) 1990 Dec;108(6):1070] (1990), J. Biochem., 107, 151-159.
    View publication on PubMed

Localization

Localization Comment Organism GeneOntology No. Textmining
cytosol cytosolic isoenzyme Torulopsis candida 5829
-
cytosol cytosolic isoenzyme Cystobasidium minutum 5829
-
mitochondrion
-
Torulopsis candida 5739
-
mitochondrion mitochondrial isoenzyme Cystobasidium minutum 5739
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
44000
-
2 * 44000, mitochondria, SDS-PAGE Cystobasidium minutum
46000
-
2 * 46000, cytosol, SDS-PAGE Torulopsis candida
46000
-
2 * 46000, cytosol, SDS-PAGE Cystobasidium minutum
88000
-
gel filtration Cystobasidium minutum
88000
-
mitochondrial isozyme Cystobasidium minutum
95000
-
cytosol, gel filtration Torulopsis candida
100000
-
gel filtration Cystobasidium minutum

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
L-aspartate + 2-oxoglutarate Torulopsis candida
-
oxaloacetate + L-glutamate
-
?
L-aspartate + 2-oxoglutarate Cystobasidium minutum
-
oxaloacetate + L-glutamate
-
?

Organism

Organism UniProt Comment Textmining
Cystobasidium minutum
-
cytosolic and mitochondrial isozyme
-
Torulopsis candida
-
cytosolic and mitochondrial isozyme
-

Purification (Commentary)

Purification (Comment) Organism
2 isozymes Cystobasidium minutum
mitochondrial isoform Torulopsis candida

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.24
-
-
Torulopsis candida
2.4
-
-
Cystobasidium minutum
2.5
-
purified enzyme Torulopsis candida
292.3
-
-
Torulopsis candida
403.4
-
purified enzyme Cystobasidium minutum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-aspartate + 2-oxoglutarate
-
Torulopsis candida oxaloacetate + L-glutamate
-
?
L-aspartate + 2-oxoglutarate
-
Torulopsis candida oxaloacetate + L-glutamate
-
r
L-aspartate + 2-oxoglutarate
-
Cystobasidium minutum oxaloacetate + L-glutamate
-
?
L-aspartate + 2-oxoglutarate
-
Cystobasidium minutum oxaloacetate + L-glutamate
-
r
L-aspartate + 4-hydroxyphenylpyruvate 1.48% of the activity with 2-oxoglutarate Torulopsis candida oxaloacetate + L-tyrosine
-
?
L-aspartate + phenylpyruvate 7.12% of the activity with 2-oxoglutarate Torulopsis candida oxaloacetate + L-phenylalanine
-
?
L-phenylalanine + 2-oxoglutarate
-
Cystobasidium minutum 2-oxo-3-phenylpropionic acid + L-glutamate i.e. phenylpyruvate ?
additional information substrate specificity Torulopsis candida ?
-
?
additional information substrate specificity Cystobasidium minutum ?
-
?

Subunits

Subunits Comment Organism
dimer 2 * 44000, mitochondria, SDS-PAGE Cystobasidium minutum
dimer 2 * 46000, cytosol, SDS-PAGE Torulopsis candida
dimer 2 * 46000, cytosol, SDS-PAGE Cystobasidium minutum

Cofactor

Cofactor Comment Organism Structure
pyridoxal 5'-phosphate a pyridoxal 5'-phosphate protein Torulopsis candida
pyridoxal 5'-phosphate a pyridoxal 5'-phosphate protein Cystobasidium minutum