Phosphoketolase
Definition:
EC Tree > 4 Lyases > 4.1 Carbon-carbon lyases > 4.1.2 Aldehyde-lyases > 4.1.2.9 phosphoketolase
Phosphoketolase is a thiamine-diphosphate-dependent carbon-carbon lyase in the phosphoketolase pathway. It cleaves D-xylulose 5-phosphate together with inorganic phosphate into acetyl phosphate, D-glyceraldehyde 3-phosphate and water. It appears in viruses and cellular organisms and is a key enzyme of heterofermentative lactic acid bacteria, bifidobacteria and certain gut anaerobes, providing acetyl phosphate for acetate/ethanol synthesis. Structurally it is a TPP-dependent phosphoketolase.
Phosphoketolase is a thiamine-diphosphate-dependent carbon-carbon lyase in the phosphoketolase pathway. It cleaves D-xylulose 5-phosphate together with inorganic phosphate into acetyl phosphate, D-glyceraldehyde 3-phosphate and water. It appears in viruses and cellular organisms and is a key enzyme of heterofermentative lactic acid bacteria, bifidobacteria and certain gut anaerobes, providing acetyl phosphate for acetate/ethanol synthesis. Structurally it is a TPP-dependent phosphoketolase.
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