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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Wentzell, Lois M. Liu, Yilun Singleton, Martin R. Wigley, Dale B. West, Stephen C. |
| Description | Author Affiliation: Singleton MR ( Cancer Research U.K., London Research Institute, Clare Hall Laboratories, South Mimms, Hertfordshire EN6 3LD, UK.); |
| Abstract | In eukaryotic cells, RAD52 protein plays a central role in genetic recombination and DNA repair by (i) promoting the annealing of complementary single-stranded DNA and (ii) stimulation of the RAD51 recombinase. The single-strand annealing domain resides in the N-terminal region of the protein and is highly conserved, whereas the nonconserved RAD51-interaction domain is located in the C-terminal region. An N-terminal fragment of human RAD52 (residues 1-209) has been purified to homogeneity and, similar to the full-size protein (residues 1-418), shown to promote single-strand annealing in vitro. We have determined the crystal structure of this single-strand annealing domain at 2.7 A. The structure reveals an undecameric (11) subunit ring with extensive subunit contacts. A large, positively charged groove runs along the surface of the ring, readily suggesting a mechanism by which RAD52 presents the single strand for reannealing with complementary single-stranded DNA. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 21 |
| Volume Number | 99 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2002-10-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | DNA-Binding Proteins Chemistry Binding Sites Crystallography, X-Ray DNA Repair DNA, Single-Stranded Metabolism Genetics Models, Molecular Molecular Structure Peptide Fragments Protein Folding Protein Structure, Quaternary Protein Structure, Tertiary Protein Subunits Rad52 DNA Repair And Recombination Protein Recombinant Proteins Static Electricity Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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