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Literature summary for 2.6.1.4 extracted from

  • Yamaguchi, H.; Ohtani, M.; Amachi, S.; Shinoyama, H.; Fujii, T.
    Some properties of glycine aminotransferase purified from Rhodopseudomonas palustris No. 7 concerning extracellular porphyrin production (2003), Biosci. Biotechnol. Biochem., 67, 783-789.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
ammonium chloride 50% inhibition at 15 mM Rhodopseudomonas palustris
glycine weak, 30% inhibition at 15 mM Rhodopseudomonas palustris
L-serine weak, 20% inhibition at 15 mM Rhodopseudomonas palustris
additional information no inhibition by aspartate; no substrate inhibition Rhodopseudomonas palustris

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.75
-
glyoxylate pH 7.5, 30°C Rhodopseudomonas palustris
6.2
-
L-glutamate pH 7.5, 30°C Rhodopseudomonas palustris

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
42000
-
1 * 42000, SDS-PAGE Rhodopseudomonas palustris
45500
-
gel filtration Rhodopseudomonas palustris

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
glyoxylate + L-glutamate Rhodopseudomonas palustris involved in the supply of glycine for extracellular porphyrin production glycine + 2-oxoglutarate
-
?
glyoxylate + L-glutamate Rhodopseudomonas palustris No. 7 involved in the supply of glycine for extracellular porphyrin production glycine + 2-oxoglutarate
-
?

Organism

Organism UniProt Comment Textmining
Rhodopseudomonas palustris
-
No. 7
-
Rhodopseudomonas palustris No. 7
-
No. 7
-

Purification (Commentary)

Purification (Comment) Organism
191fold to homogeneity Rhodopseudomonas palustris

Source Tissue

Source Tissue Comment Organism Textmining
additional information activity depends on growth phase Rhodopseudomonas palustris
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.25
-
purified enzyme Rhodopseudomonas palustris

Storage Stability

Storage Stability Organism
-20°C, fairly stable for 8 months Rhodopseudomonas palustris

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
glyoxylate + L-glutamate highly specific for glyoxylate and L-glutamate as substrates Rhodopseudomonas palustris glycine + 2-oxoglutarate
-
?
glyoxylate + L-glutamate involved in the supply of glycine for extracellular porphyrin production Rhodopseudomonas palustris glycine + 2-oxoglutarate
-
?
glyoxylate + L-glutamate highly specific for glyoxylate and L-glutamate as substrates Rhodopseudomonas palustris No. 7 glycine + 2-oxoglutarate
-
?
glyoxylate + L-glutamate involved in the supply of glycine for extracellular porphyrin production Rhodopseudomonas palustris No. 7 glycine + 2-oxoglutarate
-
?

Subunits

Subunits Comment Organism
monomer 1 * 42000, SDS-PAGE Rhodopseudomonas palustris

Synonyms

Synonyms Comment Organism
GlyAT
-
Rhodopseudomonas palustris

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
40 45
-
Rhodopseudomonas palustris

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
80
-
inactivation Rhodopseudomonas palustris

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
46.8
-
L-glutamate pH 7.5, 30°C Rhodopseudomonas palustris
48.2
-
glyoxylate pH 7.5, 30°C Rhodopseudomonas palustris

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
-
Rhodopseudomonas palustris

pH Range

pH Minimum pH Maximum Comment Organism
5 7.5 80% activity at pH 5.0 and pH 7.5 Rhodopseudomonas palustris

pH Stability

pH Stability pH Stability Maximum Comment Organism
9
-
inactivation Rhodopseudomonas palustris

Cofactor

Cofactor Comment Organism Structure
pyridoxal 5'-phosphate
-
Rhodopseudomonas palustris