To assay for oxidoreductase activity, the purified recombinant proteins were incubated in 100-μl reactions at 37 °C overnight with 1 mg/ml 2,7-anhydro-Neu5Ac or Neu5Ac in 20 mm sodium phosphate buffer, pH 7.5, in the presence 500 μm NADH. The structure was acquired from a crystal grown in the JCSG Plus screen (100 mm sodium citrate, pH 5.5, 20% PEG 3000) If you have any kind of concerns pertaining to where and how you can make use of sialic acid powder supplier, you could call us at our own internet site. .