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Literature summary for 2.1.3.2 extracted from

  • Chang, T.Y.; Jones, M.E.
    Aspartate transcarbamylase from Streptococcus faecalis. Purification, properties, and nature of an allosteric activator site (1974), Biochemistry, 13, 629-638.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
4-aminobutyrate
-
Enterococcus faecalis
Aminoethanol activates Enterococcus faecalis
Butyrate
-
Enterococcus faecalis
Carbamoyl-beta-alanine
-
Enterococcus faecalis
formate
-
Enterococcus faecalis
Hydroxylamine-HCl 30 mM, 2120% activation Enterococcus faecalis
Imidazole-HCl 30 mM, 2710% activation Enterococcus faecalis
Isobutyrate
-
Enterococcus faecalis
L-2-aminobutyrate
-
Enterococcus faecalis
additional information at high aspartate levels addition of an activator has no effect Enterococcus faecalis
NaCl 30 mM, 1730% activation Enterococcus faecalis
NH4Cl 30 mM, 2710% activation Enterococcus faecalis
propionate
-
Enterococcus faecalis
Triethanolamine-HCl 30 mM, 1950% activation Enterococcus faecalis
Tris-HCl 30 mM, 2620% activation Enterococcus faecalis

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
128000
-
sedimentation equilibrium Enterococcus faecalis

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
carbamoylphosphate + L-aspartate Enterococcus faecalis
-
phosphate + N-carbamoyl-L-aspartate
-
?

Organism

Organism UniProt Comment Textmining
Enterococcus faecalis
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Enterococcus faecalis

Renatured (Commentary)

Renatured (Comment) Organism
4% of original activity is restored Enterococcus faecalis

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
350
-
-
Enterococcus faecalis

Storage Stability

Storage Stability Organism
-20°C, 0.1-1 mg protein/ml, at least 2 years, no loss of activity 4°C, 0.1-1 mg/ml, at least 2 months, no loss of activity Enterococcus faecalis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
carbamoyl phosphate + L-aspartate
-
Enterococcus faecalis phosphate + N-carbamoyl-L-aspartate
-
?
carbamoylphosphate + L-aspartate
-
Enterococcus faecalis phosphate + N-carbamoyl-L-aspartate
-
?

Subunits

Subunits Comment Organism
tetramer
-
Enterococcus faecalis

pH Stability

pH Stability pH Stability Maximum Comment Organism
6.6
-
-
Enterococcus faecalis