# OC Root 2nd 3rd 4th PC Gene/Definition OC.78038 Archaea.76667 Euryarchaeota.61987 Thermococcus.8237 tga.77 tga:TGAM_0072 Zinc-binding alcohol dehydrogenase OC.78038 Archaea.76667 Euryarchaeota.61987 Thermococcus.8237 ths.130 ths:TES1_0121 Zinc-binding alcohol dehydrogenase; K00004 (R,R)-butanediol dehydrogenase / meso-butanediol dehydrogenase / diacetyl reductase [EC:1.1.1.4 1.1.1.- 1.1.1.303]