Photolyase is a flavoprotein, as it requires the cofactor flavin.
Photolyase is found in many living beings but not in mammals. Its function is to repair damage to DNA pyrimidine bases caused by ultra-violet sunlight.
Its mechanism of action has been extensively studied and requires transfer of an electron and a proton between the enzyme and DNA after the photolyase has been activated by blue or ultra-violet light.
Photolyase is an enzyme belonging to the flavoprotein family. © Opabinia Regalis / Licence Creative Commons