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Literature summary extracted from

  • MacElroy, R.D.; Mack, H.M.; Johnson, E.J.
    Properties of phosphoribulokinase from Thiobacillus neapolitanus (1972), J. Bacteriol., 112, 532-538.
    View publication on PubMedView publication on EuropePMC

Activating Compound

EC Number Activating Compound Comment Organism Structure
2.7.1.19 alpha-glycerophosphate activation Halothiobacillus neapolitanus
2.7.1.19 D-glucose 6-phosphate activation Halothiobacillus neapolitanus
2.7.1.19 glyceraldehyde 3-phosphate activation Halothiobacillus neapolitanus
2.7.1.19 glycine activation Halothiobacillus neapolitanus

Inhibitors

EC Number Inhibitors Comment Organism Structure
2.7.1.19 phosphoenolpyruvate
-
Halothiobacillus neapolitanus

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.7.1.19 0.24
-
D-ribulose 5-phosphate 30°C Halothiobacillus neapolitanus
2.7.1.19 0.71
-
ATP 30°C Halothiobacillus neapolitanus

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2.7.1.19 D-ribulose 5-phosphate + ATP Halothiobacillus neapolitanus
-
D-ribulose 1,5-diphosphate + ADP
-
?

Organism

EC Number Organism UniProt Comment Textmining
2.7.1.19 Halothiobacillus neapolitanus
-
-
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.7.1.19 50 125
-
Halothiobacillus neapolitanus

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.7.1.19 D-ribulose 5-phosphate + ATP
-
Halothiobacillus neapolitanus D-ribulose 1,5-diphosphate + ADP
-
?

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
2.7.1.19 7.9
-
-
Halothiobacillus neapolitanus
2.7.1.19 8.4
-
presence of phosphoenolpyruvate Halothiobacillus neapolitanus

pH Range

EC Number pH Minimum pH Maximum Comment Organism
2.7.1.19 7 9.2 no activity above and below Halothiobacillus neapolitanus

Cofactor

EC Number Cofactor Comment Organism Structure
2.7.1.19 NADH activation Halothiobacillus neapolitanus