photolyase

Classification

• class I photolyases include microbial photolyases & several plant blue-light photoreceptors
• class II photolyases are found in higher eukaryotes

Function

• enzymes that mediate photoreactivation, a repair mechanism that removes UV-induced DNA damage
• most photolyases contain 2 chromophores:
  • flavin adenine dinucleotide (FAD
  • a second, variable chromophore

More general terms

• lyase