# OC Root 2nd 3rd 4th PC Gene/Definition OC.80282 Archaea.6273 Crenarchaeota.1136 Metallosphaera.452 mse.538 mse:Msed_0533 histone deacetylase superfamily; K04768 acetoin utilization protein AcuC OC.80282 Archaea.6273 Crenarchaeota.1136 Metallosphaera.452 mcn.1549 mcn:Mcup_1562 histone deacetylase superfamily protein; K04768 acetoin utilization protein AcuC OC.80282 Archaea.6273 Crenarchaeota.1136 Metallosphaera.452 mhk.859 mhk:DFR87_04835 acetoin utilization protein AcuC; K04768 acetoin utilization protein AcuC