Compound as reactive (1)

H₂O + phosphorylated SCB1 butanolide intermediate → SCB1 butanolide intermediate + phosphate

Compound as product (1)

NADPH + phosphorylated SCB1 butenolide intermediate + H⁺ → phosphorylated SCB1 butanolide intermediate + NADP⁺

Reversible reaction (1)

phosphorylated SCB1 butanolide intermediate ↔ SCB1 butanolide intermediate + phosphate