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Literature summary for 4.1.2.9 extracted from

  • Goldberg, M.; Fessenden, J.M.; Racker, E.
    Phosphoketolase (1966), Methods Enzymol., 9, 515-520.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
EDTA stimulates Leuconostoc mesenteroides
Sodium borate stimulate Leuconostoc mesenteroides
sulfhydryl compounds stimulates Leuconostoc mesenteroides

Crystallization (Commentary)

Crystallization (Comment) Organism
-
Leuconostoc mesenteroides

Inhibitors

Inhibitors Comment Organism Structure
acetyl-CoA no inhibition Leuconostoc mesenteroides
erythrose 4-phosphate
-
Leuconostoc mesenteroides
glyceraldehyde 3-phosphate
-
Leuconostoc mesenteroides
p-hydroxymercuribenzoate
-
Leuconostoc mesenteroides

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
4.7
-
D-xylulose 5-phosphate
-
Leuconostoc mesenteroides
29
-
fructose 6-phosphate
-
Leuconostoc mesenteroides

Organism

Organism UniProt Comment Textmining
Leuconostoc mesenteroides
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Leuconostoc mesenteroides

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
9.9
-
-
Leuconostoc mesenteroides

Storage Stability

Storage Stability Organism
-55°C, several years with little loss of activity Leuconostoc mesenteroides
thioglycerol, 12 mM, required for long-term storage Leuconostoc mesenteroides

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
D-fructose 6-phosphate + phosphate
-
Leuconostoc mesenteroides ?
-
?
D-Xylulose 5-phosphate + phosphate
-
Leuconostoc mesenteroides Acetyl phosphate + D-glyceraldehyde 3-phosphate + H2O
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.8 7.6
-
Leuconostoc mesenteroides

pH Stability

pH Stability pH Stability Maximum Comment Organism
4.5 5.5 most stable in the range Leuconostoc mesenteroides