# OC Root 2nd 3rd 4th PC Gene/Definition OC.34301 Bacteria.503330 Proteobacteria.155297 Alphaproteobacteria.2120 tpro.2189 tpro:Ga0080559_TMP2978 carbamoyl-phosphate synthase, small subunit; K01956 carbamoyl-phosphate synthase small subunit [EC:6.3.5.5]