Proton-translocating NADH-quinone oxidoreductase, chain M
acetolactate synthase / acetohydroxybutanoate synthase
acetohydroxybutanoate synthase / acetolactate synthase
(S)-2-Acetolactate + Hydrogen Ion + NADPH → (R)-2,3-Dihydroxy-isovalerate + NADP
(R)-2,3-Dihydroxy-isovalerate → Isovaleric acid + Water
L-Valine (→) Transport: Bacteroides fluxus YIT 12057, Cytosol to Bacteroides fluxus YIT 12057, Periplasmic Space
Isovaleric acid + L-Glutamic acid → L-Valine + Oxoglutaric acid
Hydrogen Ion + 2 Pyruvic acid → (S)-2-Acetolactate + Carbon dioxide