Ultraviolet light can form crosslinks between adjacent bases in DNA, leading to mutations when the DNA is replicated. This structure includes an enzyme that recognizes thymine dimers and removes them.PDB ID: 1VAS
Atomic model of a pyrimidine dimer excision repair enzyme complexed with a DNA substrate: structural basis for damaged DNA recognition.
Vassylyev, D.G., Kashiwagi, T., Mikami, Y., Ariyoshi, M., Iwai, S., Ohtsuka, E., Morikawa, K.
Journal: (1995) Cell(Cambridge,Mass.) 83: 773-782