# OC Root 2nd 3rd 4th PC Gene/Definition OC.168763 Bacteria.343095 Proteobacteria.166127 Gammaproteobacteria.417797 gpb.636 gpb:HDN1F_05390 murB1; UDP-N-acetylmuramate dehydrogenase; K00075 UDP-N-acetylmuramate dehydrogenase [EC:1.3.1.98]