Compound as reactive (1)

NAD⁺ + 3-ethylmalate → NADH + 2-oxovalerate + CO₂

Compound as product (1)

H₂O + butanoyl-CoA + glyoxylate → coenzyme A + H⁺ + 3-ethylmalate

Reversible reaction (1)

NAD⁺ + 3-ethylmalate ↔ NADH + 3-ethyl-2-oxosuccinate + H⁺