# OC Root 2nd 3rd PC Gene/Definition OC.1185331 Archaea.22642 Euryarchaeota.24347 mla.1489 mla:Mlab_1559 tetrahydromethanopterin S-methyltransferase, subunit D; K00580 tetrahydromethanopterin S-methyltransferase subunit D [EC:2.1.1.86]