Structural highlights
4irb is a 4 chain structure with sequence from Vaccinia virus western reserve. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
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| Ligands: | , , |
| Related: | 2owq, 2owr |
| Gene: | D4R, VACWR109 (Vaccinia virus Western Reserve) |
| Activity: | Uracil-DNA glycosylase, with EC number 3.2.2.27 |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
[UNG_VACCA] Excises uracil residues from the DNA which can arise as a result of misincorporation of dUMP residues by DNA polymerase or due to deamination of cytosine. Also part of a heterodimeric processivity factor which potentiates the DNA polymerase activity. Binds to DNA.
Publication Abstract from PubMed
Amino-acid residues located at a highly flexible area in the uracil DNA glycosylase of Vaccinia virus were mutated. In the crystal structure of wild-type D4 these residues lie at the dimer interface. Specifically, three mutants were generated: (i) residue Arg167 was replaced with an alanine (R167AD4), (ii) residues Glu171, Ser172 and Pro173 were substituted with three glycine residues (3GD4) and (iii) residues Glu171 and Ser172 were deleted (Delta171-172D4). Mutant proteins were expressed, purified and crystallized in order to investigate the effects of these mutations on the structure of the protein.
Crystallization and preliminary X-ray diffraction analysis of three recombinant mutants of Vaccinia virus uracil DNA glycosylase.,Sartmatova D, Nash T, Schormann N, Nuth M, Ricciardi R, Banerjee S, Chattopadhyay D Acta Crystallogr Sect F Struct Biol Cryst Commun. 2013 Mar 1;69(Pt 3):295-301., doi: 10.1107/S1744309113002716. Epub 2013 Feb 23. PMID:23519808[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Sartmatova D, Nash T, Schormann N, Nuth M, Ricciardi R, Banerjee S, Chattopadhyay D. Crystallization and preliminary X-ray diffraction analysis of three recombinant mutants of Vaccinia virus uracil DNA glycosylase. Acta Crystallogr Sect F Struct Biol Cryst Commun. 2013 Mar 1;69(Pt 3):295-301., doi: 10.1107/S1744309113002716. Epub 2013 Feb 23. PMID:23519808 doi:http://dx.doi.org/10.1107/S1744309113002716
