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Literature summary for 3.6.1.1 extracted from

  • Khandelwal, R.L.; Hamilton, I.R.
    Inorganic pyrophosphatase activity in oral Streptococci: purification and properties of the enzyme from Streptococcus salivarius (1981), Can. J. Biochem., 60, 452-462.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
Ca2+
-
Streptococcus salivarius
Co2+
-
Streptococcus salivarius
diphosphate
-
Streptococcus salivarius
fructose-1,6-bisphosphate
-
Streptococcus salivarius
Guanidine nucleotides
-
Streptococcus salivarius
Hg2+
-
Streptococcus salivarius
P2O74-
-
Streptococcus salivarius
Zn2+
-
Streptococcus salivarius

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.016
-
Mg-diphosphate
-
Streptococcus salivarius

Localization

Localization Comment Organism GeneOntology No. Textmining
soluble
-
Streptococcus salivarius
-
-

Metals/Ions

Metals/Ions Comment Organism Structure
Co2+ lower activation than Mg2+ Streptococcus salivarius
Mg2+ required for activity Streptococcus salivarius
Mn2+ lower activation than Mg2+ Streptococcus salivarius

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
diphosphate + H2O Streptococcus salivarius
-
2 phosphate
-
?

Organism

Organism UniProt Comment Textmining
Streptococcus salivarius
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Streptococcus salivarius

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
33.6
-
-
Streptococcus salivarius

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
diphosphate + H2O
-
Streptococcus salivarius 2 phosphate
-
?
diphosphate + H2O diphosphate in form of Mg-diphosphate Streptococcus salivarius 2 phosphate
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8
-
-
Streptococcus salivarius