Enzymatic reactions [BR:br08201]
1. Oxidoreductase reactions
1.2 Acting on the aldehyde or oxo group of donors
1.2.4 With a disulfide as acceptor
1.2.4.4
R10996 2-Oxobutanoate + Thiamin diphosphate <=> 2-(alpha-Hydroxypropyl)thiamine diphosphate + CO2