# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.29543 Bacteria.1241657 Spirochaetes.22016 Spirochaeta.553 Spirochaeta_thermophila.242 sta.1229 sta:STHERM_c12700 cysteine synthase A; K01738 cysteine synthase [EC:2.5.1.47] OC.29543 Bacteria.1241657 Spirochaetes.22016 Spirochaeta.553 Spirochaeta_thermophila.242 stq.857 stq:Spith_0886 cysteine synthase; K01738 cysteine synthase [EC:2.5.1.47]