Skip to main content
. Author manuscript; available in PMC: 2018 Oct 15.
Published in final edited form as: Arch Biochem Biophys. 2017 Aug 9;632:158–174. doi: 10.1016/j.abb.2017.08.007

Figure 2. Chemical structures of the two types of substrates, and the catalytic cofactor in photolyases.

Figure 2

(A) Chemical structures of two UV-induced DNA photolesions, the more common cyclobutene pyrimidine dimer (CPD, ~80%), and the less common pyrimidine-pyrimidone (6-4) photoproduct (6-4PP, ~20%). (b) Absorption spectra of four redox states of flavin adenine dinucleotide (FAD) in photolyases and their corresponding structures.