# OC Root 2nd 3rd 4th PC Gene/Definition OC.168773 Bacteria.59742 Proteobacteria.242695 Betaproteobacteria.28402 sdr.2409 sdr:SCD_n02483 murB; UDP-N-acetylenolpyruvoylglucosamine reductase; K00075 UDP-N-acetylmuramate dehydrogenase [EC:1.3.1.98]