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Literature summary for 3.6.1.5 extracted from

  • Kettlun, A.M.; Uribe, L.; Calvo, V.; Silva, S.; Rivera, J.; Mancilla, M.; Valenzuela, M.A.; Traverso-Cori, A.
    Properties of two apyrases from Solanum tuberosum (1982), Phytochemistry, 21, 551-558.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
adenylyl methylenediphosphate
-
Solanum tuberosum
Cr-ATP
-
Solanum tuberosum
EDTA
-
Solanum tuberosum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.07
-
ADP variety Desiree, 20°C Solanum tuberosum
0.1
-
ADP variety Desiree, 30°C Solanum tuberosum
0.13
-
ADP variety Desiree, 40°C Solanum tuberosum
0.14
-
ADP variety Pimpernel, 20°C Solanum tuberosum
0.25
-
ADP variety Pimpernel, 30°C Solanum tuberosum
0.27
-
ADP variety Pimpernel, 40°C Solanum tuberosum

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ either Mg2+ or Ca2+ required for activity Solanum tuberosum
Mg2+ either Mg2+ or Ca2+ required for activity Solanum tuberosum

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
49000
-
gel filtration Solanum tuberosum

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
ADP + H2O Solanum tuberosum
-
AMP + phosphate
-
?
ATP + 2 H2O Solanum tuberosum
-
AMP + 2 phosphate
-
?

Organism

Organism UniProt Comment Textmining
Solanum tuberosum
-
varieties Pimpernel and Desiree
-

Purification (Commentary)

Purification (Comment) Organism
-
Solanum tuberosum

Source Tissue

Source Tissue Comment Organism Textmining
tuber
-
Solanum tuberosum
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ADP + H2O
-
Solanum tuberosum AMP + phosphate
-
?
ATP + 2 H2O
-
Solanum tuberosum AMP + 2 phosphate
-
?
additional information neglible hydrolysis of AMP Solanum tuberosum ?
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6
-
-
Solanum tuberosum

pH Range

pH Minimum pH Maximum Comment Organism
4.6 8.4 50% activity at pH 4.6 and 8.4 Solanum tuberosum