Structure of the Uracil-DNA N-Glycosylase (Ung) from Deinococcus Radiodurans.
Leiros, I., Moe, E., Smalas, A.O., Mcsweeney, S.(2005) Acta Crystallogr D Biol Crystallogr 61: 1049
- PubMed: 16041069 
- DOI: https://doi.org/10.1107/S090744490501382X
- Primary Citation of Related Structures:  
2BOO - PubMed Abstract: 
Uracil-DNA glycosylases are DNA-repair enzymes that catalyse the removal of promutagenic uracil from single- and double-stranded DNA, thereby initiating the base-excision repair (BER) pathway. Uracil in DNA can occur by mis-incorporation of dUMP in place of dTMP during DNA synthesis or by deamination of cytosine, resulting in U-A or U-G mispairs. The radiation-resistant bacterium Deinococcus radiodurans has an elevated number of uracil-DNA glycosylases compared with most other organisms. The crystal structure of dr0689 (uracil-DNA N-glycosylase), which has been shown to be the major contributor to the removal of mis-incorporated uracil bases in crude cell extracts of D. radiodurans, is reported.
Organizational Affiliation: 
The European Synchrotron Radiation Facility, 38043 Grenoble CEDEX 9, France.