Compound as reactive (1)

(2R,3S)-3-methylmalate + NAD⁺ → NADH + 2-oxobutanoate + CO₂

Compound as product (2)

H₂O + propanoyl-CoA + glyoxylate → coenzyme A + (2R,3S)-3-methylmalate + H⁺

H₂O + citraconate → (2R,3S)-3-methylmalate

Reversible reaction (1)

(2R,3S)-3-methylmalate + NAD⁺ ↔ methyloxaloacetate + NADH + H⁺