# OC Root 2nd 3rd PC Gene/Definition OC.409501 Archaea.19820 Euryarchaeota.20365 naj.3358 naj:B1756_17770 magnesium chelatase; K03404 magnesium chelatase subunit D [EC:6.6.1.1] OC.409504 Archaea.52518 Euryarchaeota.23783 naj.2121 naj:B1756_11030 magnesium chelatase; K03405 magnesium chelatase subunit I [EC:6.6.1.1] OC.409506 Archaea.52519 Euryarchaeota.23784 naj.2122 naj:B1756_11035 AAA family ATPase; K03404 magnesium chelatase subunit D [EC:6.6.1.1]