Compound as reactive (1)
L-erythrulose + ATP → L-erythrulose 1-phosphate + H+ + ADP
Compound as product (1)
3-oxo-isoapionate + H+ → L-erythrulose + CO2
Reversible reaction (1)
NAD+ + L-threitol ↔ NADH + H+ + L-erythrulose