Compound as reactive (4)

H⁺ + S-methyl-L-methionine → dimethylsulfoniopropanoate-amine + CO₂

L-homocysteine + S-methyl-L-methionine → 2 L-methionine + H⁺

H₂O + S-methyl-L-methionine → L-homoserine + H⁺ + dimethyl sulfide

H₂O + sulfonopine + NADP⁺ ← NADPH + pyruvate + H⁺ + S-methyl-L-methionine

Compound as product (1)

S-adenosyl-L-methionine + L-methionine → S-adenosyl-L-homocysteine + S-methyl-L-methionine

Reversible reaction (1)

S-methyl-L-methionine + L-selenocysteine ↔ H⁺ + L-methionine + Se-methyl-L-selenocysteine