(R)-2,3-Dihydroxy-isovalerate → Isovaleric acid + Water
(S)-2-Acetolactate + Hydrogen Ion + NADPH → (R)-2,3-Dihydroxy-isovalerate + NADP
Isovaleric acid + L-Glutamic acid → L-Valine + Oxoglutaric acid
Hydrogen Ion + 2 Pyruvic acid → (S)-2-Acetolactate + Carbon dioxide
acetohydroxybutanoate synthase / acetolactate synthase
acetolactate synthase / acetohydroxybutanoate synthase
L-Valine (→) Transport: Bradyrhizobium japonicum USDA 6, Cytosol to Bradyrhizobium japonicum USDA 6, Periplasmic Space