Identification of native flavin adducts from Fusarium oxysporum using accurate mass matrix-assisted laser desorption/ionization time-of-flight mass spectrometry

Accurate mass matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) mass spectrometry is used to determine the identity of a naturally occurring substituted flavin adenine dinucleotide (FAD) of nitroalkane oxidase isolated from Fusarium oxysporum. Accurate mass measurements (1-2 ppm) combined with an elemental composition search identifies the unknown FAD substituent as nitrobutane. The use of internal and external calibration in accurate mass MALDI-TOF is discussed.

Identification of native flavin adducts from Fusarium oxysporum using accurate mass matrix-assisted laser desorption/ionization time-of-flight mass spectrometry Academic Article