Structure of the uracil complex of Vaccinia virus uracil DNA glycosylase.
Schormann, N., Banerjee, S., Ricciardi, R., Chattopadhyay, D.(2013) Acta Crystallogr Sect F Struct Biol Cryst Commun 69: 1328-1334
- PubMed: 24316823
- DOI: https://doi.org/10.1107/S1744309113030613
- Primary Citation of Related Structures:
4LZB - PubMed Abstract:
Poxvirus uracil DNA glycosylases are the most diverse members of the family I uracil DNA glycosylases (UNGs). The crystal structure of the uracil complex of Vaccinia virus uracil DNA glycosylase (D4) was determined at 2.03 Å resolution. One uracil molecule was located in the active-site pocket in each of the 12 noncrystallographic symmetry-related D4 subunits. Although the UNGs of the poxviruses (including D4) feature significant differences in the characteristic motifs designated for uracil recognition and in the base-excision mechanism, the architecture of the active-site pocket in D4 is very similar to that in UNGs of other organisms. Overall, the interactions of the bound uracil with the active-site residues are also similar to the interactions previously observed in the structures of human and Escherichia coli UNG.
Organizational Affiliation:
Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA.