# OC Root 2nd 3rd 4th PC Gene/Definition OC.29775 Archaea.15712 Euryarchaeota.14355 Ferroplasma.784 fac.1802 fac:FACI_IFERC01G1859 hypothetical protein; K01738 cysteine synthase [EC:2.5.1.47] OC.29775 Archaea.15712 Euryarchaeota.14355 Ferroplasma.784 fai.792 fai:FAD_0825 cysK; cysteine synthase; K01738 cysteine synthase [EC:2.5.1.47]