# OC Root 2nd 3rd 4th PC Gene/Definition OC.34297 Bacteria.1242479 Spirochaetes.25651 Treponema.5856 scd.880 scd:Spica_0876 carbamoyl-phosphate synthase, small subunit; K01956 carbamoyl-phosphate synthase small subunit [EC:6.3.5.5]