a fluorescent oxidation product of the molybdenum cofactor was isolated from escherichia coli nitrate reductase ( ec 1.9.6.1 ) and bovine milk xanthine oxidase ( ec 1.2.3.2 ) , which showed a visible absorption band at 395 nm and was dephosphorylated by alkaline phosphatase but not by phosphodiesterase i .
C0020289
ec
C0002059
alkaline phosphatase