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Literature summary extracted from

  • McLennan, A.G.; Mayers, E.; Adams, D.G.
    Anabaena flos-aquae and other cyanobacteria possess diadenosine 5',5"'-P1,P4-tetraphosphate (Ap4A) phosphorylase activity (1996), Biochem. J., 320, 795-800.
    View publication on PubMedView publication on EuropePMC

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.7.7.53 0.006
-
P1,P4-bis(5'-adenosyl) tetraphosphate pH 9.5 Dolichospermum flos-aquae

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
2.7.7.53 Ca2+ activates Dolichospermum flos-aquae
2.7.7.53 Co2+ activates Dolichospermum flos-aquae
2.7.7.53 Mg2+ required, most effective divalent cation Dolichospermum flos-aquae
2.7.7.53 Mn2+ activates Dolichospermum flos-aquae
2.7.7.53 Zn2+ slight activation Dolichospermum flos-aquae

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
2.7.7.53 32000
-
gel filtration Dolichospermum flos-aquae
2.7.7.53 32000
-
gel filtration Trichormus variabilis
2.7.7.53 39000
-
gel filtration Synechococcus sp.

Organism

EC Number Organism UniProt Comment Textmining
2.7.7.53 Dolichospermum flos-aquae
-
-
-
2.7.7.53 Synechococcus sp.
-
-
-
2.7.7.53 Trichormus variabilis
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
2.7.7.53 partial, 206fold Dolichospermum flos-aquae

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.7.7.53 0.037
-
partially purified enzyme Dolichospermum flos-aquae

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.7.7.53 additional information P1,P6-bis(5'-adenosyl) hexaphosphate is a very poor substrate Dolichospermum flos-aquae ?
-
?
2.7.7.53 additional information no activity with sulfate Dolichospermum flos-aquae ?
-
?
2.7.7.53 P1,P2-bis(5'-adenosyl) diphosphate + phosphate no activity Dolichospermum flos-aquae ?
-
?
2.7.7.53 P1,P3-bis(5'-adenosyl) triphosphate + phosphate
-
Dolichospermum flos-aquae ADP
-
?
2.7.7.53 P1,P4-bis(5'-adenosyl) tetraphosphate + arsenate 182% activity compared to phosphate Dolichospermum flos-aquae ?
-
?
2.7.7.53 P1,P4-bis(5'-adenosyl) tetraphosphate + chromate poor substrate Dolichospermum flos-aquae ?
-
r
2.7.7.53 P1,P4-bis(5'-adenosyl) tetraphosphate + molybdate poor substrate Dolichospermum flos-aquae ?
-
r
2.7.7.53 P1,P4-bis(5'-adenosyl) tetraphosphate + phosphate
-
Dolichospermum flos-aquae ADP + ATP
-
?
2.7.7.53 P1,P4-bis(5'-adenosyl) tetraphosphate + phosphate
-
Synechococcus sp. ADP + ATP
-
?
2.7.7.53 P1,P4-bis(5'-adenosyl) tetraphosphate + phosphate
-
Trichormus variabilis ADP + ATP
-
?
2.7.7.53 P1,P4-bis(5'-adenosyl) tetraphosphate + tungstate no activity Dolichospermum flos-aquae ?
-
?
2.7.7.53 P1,P4-bis(5'-adenosyl) tetraphosphate + vanadate 225% activity compared to phosphate Dolichospermum flos-aquae ?
-
r
2.7.7.53 P1,P5-bis(5'-adenosyl) pentaphosphate + phosphate
-
Dolichospermum flos-aquae ADP + p4A
-
?

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
2.7.7.53 9
-
-
Dolichospermum flos-aquae