# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.20338 Bacteria.1049217 Proteobacteria.507373 Betaproteobacteria.176058 Cupriavidus.24491 cgd.4142 cgd:CR3_4251 nasA; assimilatory nitrate reductase catalytic subunit; K00372 assimilatory nitrate reductase catalytic subunit [EC:1.7.99.-]