Abstract
The 1.75-Å crystal structure of the uracil-DNA glycosylase from herpes simplex virus type-1 reveals a new fold, distantly related to dinucleotide-binding proteins. Complexes with a trideoxynucleotide, and with uracil, define the DNA-binding site and allow a detailed understanding of the exquisitely specific recognition of uracil in DNA. The overall structure suggests binding models for elongated single- and double-stranded DNA substrates. Conserved residues close to the uracil-binding site suggest a catalytic mechanism for hydrolytic base excision.
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Savva, R., McAuley-Hecht, K., Brown, T. et al. The structural basis of specific base-excision repair by uracil–DNA glycosylase. Nature 373, 487–493 (1995). https://doi.org/10.1038/373487a0
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DOI: https://doi.org/10.1038/373487a0
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