This product includes the reagents for 500 assays in a 384-well plate assay format including 2 ml of 10 x Assay buffer, 0.170 ml of 100 x PEP, 0.170 ml of 100 x UDP-N-acetyl glucosamine (UGN), 0.170 ml of 100 x E. coli MurA (5000 nM) and 25 ml of Dye for phosphate detection.