Flavokinase is an enzyme that plays a crucial role in the metabolism of riboflavin (vitamin B2). It catalyzes the phosphorylation of riboflavin to produce flavin mononucleotide (FMN), an essential step in the biosynthesis of flavin adenine dinucleotide (FAD). These cofactors, FMN and FAD, are vital for various biochemical reactions in the cell, including redox reactions, which are critical for cellular respiration and metabolism.
