8CMM
Re-pairing DNA - binding of a ruthenium phi complex to a double mismatch
Summary for 8CMM
| Entry DOI | 10.2210/pdb8cmm/pdb |
| Descriptor | DNA (5'-D(*CP*GP*CP*TP*AP*TP*AP*AP*TP*GP*CP*G)-3'), ruthenium polypyridyl complex (delta enantiomer), ruthenium polypyridyl complex (lambda enantiomer), ... (6 entities in total) |
| Functional Keywords | dna mismatch, ruthenium, polypyridyl, intercalation, dna |
| Biological source | synthetic construct |
| Total number of polymer chains | 1 |
| Total formula weight | 5082.99 |
| Authors | Prieto Otoya, T.D.,Cardin, C.J.,McQuaid, K.M. (deposition date: 2023-02-20, release date: 2024-03-06, Last modification date: 2025-12-10) |
| Primary citation | Prieto Otoya, T.D.,McQuaid, K.T.,Paterson, N.G.,Cardin, D.J.,Kellett, A.,Cardin, C.J. Re-pairing DNA: binding of a ruthenium phi complex to a double mismatch. Chem Sci, 15:9096-9103, 2024 Cited by PubMed Abstract: We report a crystal structure at atomic resolution (0.9 Å) of a ruthenium complex bound to a consecutive DNA double mismatch, which results in a TA basepair with flipped out thymine, together with the formation of an adenine bulge. The structure shows a form of metalloinsertion interaction of the Λ-[Ru(phen)phi] (phi = 9,10-phenanthrenediimine) complex at the bulge site. The metal complex interacts with the DNA the major groove, where specific interactions between the adenines of the DNA and the phen ligands of the complex are formed. One Δ-[Ru(phen)phi] complex interacts the minor groove, which shows sandwiching of its phi ligand between the phi ligands of the other two ruthenium complexes, and no interaction of its phen ligands with DNA. To our knowledge, this binding model represents a new form of metalloinsertion in showing major rather than minor groove insertion. PubMed: 38903237DOI: 10.1039/d4sc01448k PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (0.9 Å) |
Structure validation
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