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Literature summary for 4.3.1.20 extracted from

  • Gibbs, R.G.; Morris, J.G.
    Glycine-Glyoxylate metabolism: beta-hydroxyaspartate pathway (Micrococcus denitrificans) (1970), Methods Enzymol., 17A, 981-992.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
EDTA
-
Paracoccus denitrificans
hydroxylamine
-
Paracoccus denitrificans
Maleate competitive Paracoccus denitrificans
p-chloromercuribenzoate
-
Paracoccus denitrificans

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.43
-
erythro-L-beta-hydroxyaspartate
-
Paracoccus denitrificans

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ required for activity Paracoccus denitrificans
Mg2+ required for activity Paracoccus denitrificans

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
Erythro-3-hydroxyaspartate Paracoccus denitrificans glycine-glycolate metabolism ?
-
?

Organism

Organism UniProt Comment Textmining
Paracoccus denitrificans
-
ATCC 8944
-

Purification (Commentary)

Purification (Comment) Organism
partial Paracoccus denitrificans

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
7.15
-
-
Paracoccus denitrificans

Storage Stability

Storage Stability Organism
-15°C, with 0.01M Tris-HCl buffer, pH 8, 1 mM MgCl2 and 0.01 mM pyridoxal 5'-phosphate, 50% loss of activity in 60 days Paracoccus denitrificans
2°C, with 0.01M Tris-HCl buffer, pH 8, 1 mM MgCl2 and 0.01 mM pyridoxal 5'-phosphate, 50% loss of activity in 10 days Paracoccus denitrificans

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
Erythro-3-hydroxyaspartate glycine-glycolate metabolism Paracoccus denitrificans ?
-
?
Erythro-DL-beta-hydroxyaspartate
-
Paracoccus denitrificans Oxaloacetate + NH3
-
?
erythro-L-beta-hydroxyaspartate
-
Paracoccus denitrificans oxaloacetate + NH3
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
9.5
-
-
Paracoccus denitrificans

Cofactor

Cofactor Comment Organism Structure
pyridoxal 5'-phosphate required for activity Paracoccus denitrificans