# OC Root 2nd 3rd 4th PC Gene/Definition OC.1227257 Archaea.92157 Thaumarchaeota.5265 Nitrososphaera.2599 nga.2917 nga:Ngar_c31650 xylose isomerase domain-containing protein, TIM barrel OC.1227257 Archaea.92157 Thaumarchaeota.5265 Nitrososphaera.2599 nvn.1744 nvn:NVIE_017840 xylose isomerase domain-containing protein, TIM barrel