# OC Root	2nd	3rd	4th	PC	Gene/Definition
OC.118938	Archaea.27839	Euryarchaeota.31227	-	mhu.1934	mhu:Mhun_2189   Hybrid cluster protein; K05601 hydroxylamine reductase [EC:1.7.99.1]
OC.118938	Archaea.27839	Euryarchaeota.31227	Methanoculleus.2151	mbg.789	mbg:BN140_0806   Hydroxylamine reductase; K05601 hydroxylamine reductase [EC:1.7.99.1]
OC.118938	Archaea.27839	Euryarchaeota.31228	Methanoculleus.3262	mema.1036	mema:MMAB1_1040   Hydroxylamine reductase (fragment); K05601 hydroxylamine reductase [EC:1.7.99.1]
OC.118938	Archaea.27839	Euryarchaeota.31227	Methanoculleus.2151	mema.1046	mema:MMAB1_1050   hcp; Hydroxylamine reductase; K05601 hydroxylamine reductase [EC:1.7.99.1]
OC.118938	Archaea.27839	Euryarchaeota.31227	Methanoregula.803	mbn.2137	mbn:Mboo_2242   hybrid cluster protein; K05601 hydroxylamine reductase [EC:1.7.99.1]
OC.118938	Archaea.27839	Euryarchaeota.31227	Methanoregula.803	mfo.1187	mfo:Metfor_1244   hydroxylamine reductase; K05601 hydroxylamine reductase [EC:1.7.99.1]
OC.118938	Archaea.27839	Euryarchaeota.31227	-	mpl.1501	mpl:Mpal_1634   hybrid cluster protein; K05601 hydroxylamine reductase [EC:1.7.99.1]