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Article Abstract

We present the structure of a photoactivated animal (6-4) photolyase in its radical pair state, captured by serial crystallography. We observe how a conserved asparigine moves towards the semiquinone FAD chromophore and stabilizes it by hydrogen bonding. Several amino acids around the final tryptophan radical rearrange, opening it up to the solvent. The structure explains how the protein environment stabilizes the radical pair state, which is crucial for function of (6-4) photolyases and cryptochromes.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9008703PMC
http://dx.doi.org/10.1039/d2cc00376gDOI Listing

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