Fructose-6-phosphate phosphoketolase
fructose-6-phosphate phosphoketolase | |||||||||
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Identifiers | |||||||||
EC number | 4.1.2.22 | ||||||||
CAS number | 37290-57-6 | ||||||||
Databases | |||||||||
IntEnz | IntEnz view | ||||||||
BRENDA | BRENDA entry | ||||||||
ExPASy | NiceZyme view | ||||||||
KEGG | KEGG entry | ||||||||
MetaCyc | metabolic pathway | ||||||||
PRIAM | profile | ||||||||
PDB structures | RCSB PDB PDBe PDBsum | ||||||||
Gene Ontology | AmiGO / EGO | ||||||||
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In enzymology, a fructose-6-phosphate phosphoketolase (EC 4.1.2.22) is an enzyme that catalyzes the chemical reaction
- D-fructose 6-phosphate + phosphate acetyl phosphate + D-erythrose 4-phosphate + H2O
Thus, the two substrates of this enzyme are D-fructose 6-phosphate and phosphate, whereas its 3 products are acetyl phosphate, D-erythrose 4-phosphate, and H2O.
This enzyme belongs to the family of lyases, specifically the aldehyde-lyases, which cleave carbon-carbon bonds. The systematic name of this enzyme class is D-fructose-6-phosphate D-erythrose-4-phosphate-lyase (adding phosphate; acetyl-phosphate-forming). Other names in common use include D-fructose-6-phosphate D-erythrose-4-phosphate-lyase, and (phosphate-acetylating). This enzyme participates in pentose phosphate pathway.
References
- Schramm M, Klybas V, Racker E (1958). "Phospholytic cleavage of fructose-6-phosphate by fructose-6-phosphate phosphoketolase from Acetobacter xylinum". J. Biol. Chem. 233: 1283–1288.
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