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Literature summary for 2.6.1.1 extracted from

  • Taniguchi, M.; Kobe, A.; Kato, M.; Sugiyama, T.
    Aspartate aminotransferase isozymes in Panicum miliaceum L., an NAD-malic enzyme-type C4 plant: comparison of enzymatic properties primary structures, and expression patterns (1995), Arch. Biochem. Biophys., 318, 295-306.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
cloning and DNA-sequencing of cDNA encoding the plastidic isozyme pAspAT, DNA and amino acid sequence analysis Panicum miliaceum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.023
-
oxaloacetate isozyme pAspAT, gamma-form, pH 8.0, 25°C Panicum miliaceum
0.03
-
oxaloacetate isozyme pAspAT, alpha-form, pH 8.0, 25°C Panicum miliaceum
0.033
-
oxaloacetate isozyme pAspAT, beta-form, pH 8.0, 25°C Panicum miliaceum
0.056
-
oxaloacetate isozyme mAspAT, pH 8.0, 25°C Panicum miliaceum
0.065
-
oxaloacetate isozyme cAspAT, alpha-form, pH 8.0, 25°C Panicum miliaceum
0.07
-
2-oxoglutarate isozyme pAspAT, gamma-form, pH 8.0, 25°C Panicum miliaceum
0.075
-
2-oxoglutarate isozyme pAspAT, beta-form, pH 8.0, 25°C Panicum miliaceum
0.08
-
oxaloacetate isozyme cAspAT, gamma-form, pH 8.0, 25°C Panicum miliaceum
0.085
-
oxaloacetate isozyme cAspAT, beta-form, pH 8.0, 25°C Panicum miliaceum
0.087
-
2-oxoglutarate isozyme pAspAT, alpha-form, pH 8.0, 25°C Panicum miliaceum
0.13
-
2-oxoglutarate isozyme mAspAT, pH 8.0, 25°C Panicum miliaceum
0.14
-
2-oxoglutarate isozyme cAspAT, beta-form, pH 8.0, 25°C Panicum miliaceum
0.17
-
2-oxoglutarate isozyme cAspAT, alpha-form, pH 8.0, 25°C Panicum miliaceum
0.2
-
2-oxoglutarate isozyme cAspAT, gamma-form, pH 8.0, 25°C Panicum miliaceum
1.3
-
L-aspartate isozyme mAspAT, pH 8.0, 25°C Panicum miliaceum
2.2
-
L-aspartate isozyme pAsp-AT, beta-form, pH 8.0, 25°C Panicum miliaceum
2.3
-
L-aspartate isozyme pAsp-AT, gamma-form, pH 8.0, 25°C Panicum miliaceum
2.6
-
L-aspartate isozyme pAsp-AT and cAspAT, alpha-form, pH 8.0, 25°C Panicum miliaceum
3
-
L-aspartate isozyme cAspAT, gamma-form, pH 8.0, 25°C Panicum miliaceum
3.2
-
L-aspartate isozyme cAspAT, beta-form, pH 8.0, 25°C Panicum miliaceum
7.5
-
L-glutamate isozyme mAspAT, pH 8.0, 25°C Panicum miliaceum
13
-
L-glutamate isozyme cAspAT, gamma-form, pH 8.0, 25°C Panicum miliaceum
14
-
L-glutamate isozyme cAspAT, beta-form, pH 8.0, 25°C Panicum miliaceum
17
-
L-glutamate isozyme cAspAT, alpha-form, pH 8.0, 25°C Panicum miliaceum
18
-
L-glutamate isozyme pAspAT, gamma-form, pH 8.0, 25°C Panicum miliaceum
20
-
L-glutamate isozyme pAspAT, beta-form, pH 8.0, 25°C Panicum miliaceum
32
-
L-glutamate isozyme pAspAT, alpha-form, pH 8.0, 25°C Panicum miliaceum

Localization

Localization Comment Organism GeneOntology No. Textmining
chloroplast isozyme pAspAT, multiple forms Panicum miliaceum 9507
-
cytosol multiple catalytically active forms of the cytosolic enzyme Panicum miliaceum 5829
-
mitochondrion multiple catalytically active forms of mitochondrial isozyme Panicum miliaceum 5739
-

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
L-aspartate + 2-oxoglutarate Panicum miliaceum
-
oxaloacetate + L-glutamate
-
?

Organism

Organism UniProt Comment Textmining
Panicum miliaceum
-
at least 3 isozymes: inducible cytosolic cAspAT and mitochondrial mAspAT, and a constitutive minor plastidic pAspAT
-

Purification (Commentary)

Purification (Comment) Organism
isozymes mAsp-AT, cAsp-AT, and pAspAT from young green leaves Panicum miliaceum

Source Tissue

Source Tissue Comment Organism Textmining
leaf green, greening and etiolated: all isozymes, low content in etiolated leaves Panicum miliaceum
-
mesocotyl cytosolic and mitochondrial isozymes, low content Panicum miliaceum
-
root cytosolic isozyme, low content Panicum miliaceum
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
178
-
purified pAspAT, gamma-form Panicum miliaceum
252
-
purified pAspAT, alpha-form Panicum miliaceum
322
-
purified pAspAT, beta-form Panicum miliaceum
512
-
purified mAspAT Panicum miliaceum
671
-
purified cAspAT, alpha-form Panicum miliaceum
953
-
purified cAspAT, gamma-form Panicum miliaceum
1035
-
purified cAspAT, beta-form Panicum miliaceum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-aspartate + 2-oxoglutarate
-
Panicum miliaceum oxaloacetate + L-glutamate
-
?
L-aspartate + 2-oxoglutarate
-
Panicum miliaceum oxaloacetate + L-glutamate
-
r

Synonyms

Synonyms Comment Organism
AspAT
-
Panicum miliaceum

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
25
-
assay at Panicum miliaceum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8
-
assay at Panicum miliaceum

pI Value

Organism Comment pI Value Maximum pI Value
Panicum miliaceum multiple forms of isozyme cAspAT and pAspAT have different isolelectric points, pI mAspAT: pH 4.93, pI cAspATs: pH 5.54-5.76, pI pAspATs: pH 4.94-5.13
-
additional information