IUBMB Enzyme Nomenclature


Accepted name: phosphoketolase

Reaction: D-xylulose 5-phosphate + phosphate = acetyl phosphate + D-glyceraldehyde 3-phosphate + H2O

Glossary: thiamine diphosphate

Other name(s): D-xylulose-5-phosphate D-glyceraldehyde-3-phosphate-lyase (phosphate-acetylating)

Systematic name: D-xylulose-5-phosphate Comments: A thiamine-diphosphate protein.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 9031-75-8


1. Heath, E.C., Hurwitz, J., Horecker, B.L. and Ginsburg, A. Pentose fermentation by Lactobacillus plantarum. I. The cleavage of xylulose 5-phosphate by phosphoketolase. J. Biol. Chem. 231 (1958) 1009-1029.

2. Schramm, M., Klybas, V. and Racker, E. Phospholytic cleavage of fructose-6-phosphate by fructose-6-phosphate phosphoketolase from Acetobacter xylinum. J. Biol. Chem. 233 (1958) 1283-1288.

[EC created 1961]

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