Structures and mechanism of the monoamine oxidase family

Abstract

Members of the monoamine oxidase family of flavoproteins catalyze the oxidation of primary and secondary amines, polyamines, amino acids, and methylated lysine side chains in proteins. The enzymes have similar overall structures, with conserved flavin adenine dinucleotide (FAD)-binding domains and varied substrate-binding sites. Multiple mechanisms have been proposed for the catalytic reactions of these enzymes. The present review compares the structures of different members of the family and the various mechanistic proposals.

Keywords

• enzyme mechanism
• flavoproteins
• l-amino acid oxidase
• lysine-specific demethylase
• monoamine oxidase
• polyamine oxidase
• protein structure
• spermine oxidase