Fungal lytic polysaccharide monooxygenases from family AA9: Recent developments and application in lignocelullose breakdown

Fungal lytic polysaccharide monooxygenases (LPMOs) from family AA9 are oxidative enzymes that, in the past few years, have changed the paradigm of cellulose conversion. They are key factor in the lignocellulose breakdown and are widely distributed among fungi. This review focuses on LPMOs from family AA9 and gives an overview of recent discoveries relative to their structure, mode of action, and synergism with other enzymes. Finally, several aspects regarding their potential applications toward deconstruction of biomass and biorefinery processes are discussed.