# OC Root 2nd 3rd 4th PC Gene/Definition OC.77879 Bacteria.40752 Proteobacteria.201828 Deltaproteobacteria.116489 dti.964 dti:Desti_0748 theronine dehydrogenase-like Zn-dependent dehydrogenase; K00004 (R,R)-butanediol dehydrogenase / meso-butanediol dehydrogenase / diacetyl reductase [EC:1.1.1.4 1.1.1.- 1.1.1.303]