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Literature summary for 2.3.1.8 extracted from

  • Stadtman, E.R.
    Phosphotransacetylase from Clostridium kluyveri (1955), Methods Enzymol., 1, 596-599.
No PubMed abstract available

General Stability

General Stability Organism
activity is lost upon dialysis and cannot be restored by addition of known cofactors or crude boiled extracts Clostridium kluyveri

Inhibitors

Inhibitors Comment Organism Structure
ADP
-
Clostridium kluyveri
ATP
-
Clostridium kluyveri
citrate buffer 0.1 M, pH 8.0 Clostridium kluyveri
Diethylbarbiturate potassium diethylbarbiturate buffer, 0.1 M, pH 8.0 Clostridium kluyveri
Li+
-
Clostridium kluyveri
Na+
-
Clostridium kluyveri
potassium diphosphate 0.1 M, pH 8.0 Clostridium kluyveri

Metals/Ions

Metals/Ions Comment Organism Structure
K+ enzyme is inactive in absence of K+ or NH4+, maximal activation at about 0.02 M Clostridium kluyveri
NH4+ K+ or NH4+ at concentration above 10 mM required for maximum activity, enzyme is inactive in absence of K+ or NH4+, maximal activation at about 0.02 M Clostridium kluyveri

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
acetyl-CoA + phosphate Clostridium kluyveri
-
CoA + acetyl phosphate
-
?

Organism

Organism UniProt Comment Textmining
Clostridium kluyveri
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Clostridium kluyveri

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
assay methods Clostridium kluyveri

Storage Stability

Storage Stability Organism
-10°C, stable for several months Clostridium kluyveri

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
acetyl-CoA + phosphate
-
Clostridium kluyveri CoA + acetyl phosphate
-
?
acetyl-CoA + phosphate in reverse reaction specific for CoA Clostridium kluyveri CoA + acetyl phosphate
-
?
arsenate + acetyl-CoA
-
Clostridium kluyveri acetyl arsenate + CoA
-
?
butyryl-CoA + phosphate at a rate 0.01 as rapid as acetyl-CoA Clostridium kluyveri CoA + butyryl phosphate
-
?
additional information arsenolysis Clostridium kluyveri ?
-
?
propionyl-CoA + phosphate at a rate 0.1 to 0.5 as rapid as acetyl-CoA Clostridium kluyveri CoA + propionyl phosphate
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.4 8.4
-
Clostridium kluyveri

pH Range

pH Minimum pH Maximum Comment Organism
6.6 9
-
Clostridium kluyveri