8Q60
Racemic crystal structure of a synthetic DNA Hairpin with diquinoline linker.
Summary for 8Q60
| Entry DOI | 10.2210/pdb8q60/pdb |
| Descriptor | 5'-D(*GP*TP*TP*TP*TP*G)-3', DNA (5'-D(CP*AP*AP*AP*AP*C)-3'), 4-[8-(aminomethyl)-2-[[5-(3-oxidanylpropyl)quinolin-8-yl]carbamoyl]quinolin-4-yl]butyl dihydrogen phosphite, ... (5 entities in total) |
| Functional Keywords | dna hairpin, dna-mimic foldamers, dna |
| Biological source | synthetic construct More |
| Total number of polymer chains | 4 |
| Total formula weight | 8375.20 |
| Authors | Mandal, P.K.,Loos, M.,Xu, F.,Huc, I. (deposition date: 2023-08-10, release date: 2025-02-19, Last modification date: 2025-08-13) |
| Primary citation | Loos, M.,Xu, F.,Mandal, P.K.,Chakrabortty, T.,Douat, C.,Konrad, D.B.,Cabbar, M.,Singer, J.,Corvaglia, V.,Carell, T.,Huc, I. Interfacing B-DNA and DNA Mimic Foldamers. Angew.Chem.Int.Ed.Engl., 64:e202505273-e202505273, 2025 Cited by PubMed Abstract: A linker unit was designed and synthesized that can serve both as a hairpin turn in a DNA duplex and anchor point for an aromatic helical foldamer mimicking the shape and surface properties of B-DNA. Methods were developed to synthesize natural/non-natural chimeric molecules combining foldamer and DNA segments. The ability of the linker to position the foldamer helix and the duplex DNA so that their rims and grooves are in register, despite their completely different chemical nature, was demonstrated using single crystal X-ray diffraction, circular dichroism and molecular models. Bio-layer interferometry confirmed that artificial hairpin DNA duplexes keep their ability to bind to DNA binding proteins. The chimeric molecules may pave the way to competitive inhibitors of protein-DNA interactions involving sequence-selective DNA-binding proteins. PubMed: 40346004DOI: 10.1002/anie.202505273 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (2.5 Å) |
Structure validation
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