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Literature summary for 3.6.1.11 extracted from

  • Campos, E.; Facanha, A.R.; Costa, E.P.; Fraga, A.; Moraes, J.; da Silva Vaz, I.; Masuda, A.; Logullo, C.
    A mitochondrial membrane exopolyphosphatase is modulated by, and plays a role in, the energy metabolism of hard tick Rhipicephalus (Boophilus) microplus embryos (2011), Int. J. Mol. Sci., 12, 3525-3535.
    View publication on PubMedView publication on EuropePMC

Activating Compound

Activating Compound Comment Organism Structure
carbonyl cyanide-4-trifluoromethoxyphenylhydrazone
-
Rhipicephalus microplus
dithiothreitol about 50% stimulation of activity at 1 mM Rhipicephalus microplus
pyruvate
-
Rhipicephalus microplus

Inhibitors

Inhibitors Comment Organism Structure
heparin the activity is completely inhibited by 0.02 mg/ml heparin Rhipicephalus microplus
hydrogen peroxide
-
Rhipicephalus microplus
potassium cyanide
-
Rhipicephalus microplus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0002
-
Triphosphate in 50 mM Tris-HCl buffer (pH 7.2), at 28°C Rhipicephalus microplus
0.0022
-
sodium phosphate glass type 15 in 50 mM Tris-HCl buffer (pH 7.2), at 28°C Rhipicephalus microplus

Localization

Localization Comment Organism GeneOntology No. Textmining
mitochondrial membrane
-
Rhipicephalus microplus 31966
-

Organism

Organism UniProt Comment Textmining
Rhipicephalus microplus
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
embryo
-
Rhipicephalus microplus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
sodium phosphate glass type 15 + H2O
-
Rhipicephalus microplus ? + phosphate
-
?
triphosphate + H2O
-
Rhipicephalus microplus diphosphate + phosphate
-
?

Synonyms

Synonyms Comment Organism
polyphosphate phosphohydrolase
-
Rhipicephalus microplus
PPX
-
Rhipicephalus microplus

IC50 Value

IC50 Value IC50 Value Maximum Comment Organism Inhibitor Structure
1
-
in 50 mM Tris-HCl buffer (pH 7.2), at 28°C Rhipicephalus microplus hydrogen peroxide

General Information

General Information Comment Organism
physiological function exopolyphosphatase activity is regulated during mitochondrial respiration and plays a role in adenosine-5’-triphosphate synthesis in hard tick embryos Rhipicephalus microplus