# OC Root 2nd 3rd 4th PC Gene/Definition OC.567011 Archaea.26347 Euryarchaeota.29318 Methanohalophilus.178 mmh.1488 mmh:Mmah_1538 FtrB OC.567011 Archaea.26347 Euryarchaeota.29318 Methanohalophilus.178 mhaz.1166 mhaz:BHR79_06040 FtrB