# OC Root 2nd 3rd 4th PC Gene/Definition OC.458750 Archaea.20699 Euryarchaeota.21664 Halodesulfurarchaeum.2054 hhsr.628 hhsr:HSR6_0641 HAD-superfamily hydrolase, subfamily IA, variant 1; K07025 putative hydrolase of the HAD superfamily