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Solution structure for the unique dimeric 4:2 complex of a platinum(II)-based tripod bound to a hybrid-1 human telomeric G-quadruplex
Authors
Liu, W.T., Zhong, Y.F., Liu, L.Y., Zeng, W.J., Wang, F.Y., Yang, D.Z., Mao, Z.W.
Assembly
G-quadruplex DNA (26-MER)
Entity
1. G-quadruplex DNA (26-MER) (polymer, Thiol state: not present), 26 monomers, 8299.294 × 2 Da Detail

AAAGGGTTAG GGTTAGGGTT AGGGAA


2. 4-[1-(2,5,8-triazonia-1$l^4-platinabicyclo[3.3.0]octan-1-yl)pyridin-1-ium-4-yl]-N,N-bis[4-[1-(2,5,8-triazonia-1$l^4-platinabicyclo[3.3.0]octan-1-yl)pyridin-1-ium-4-yl]phenyl]aniline (non-polymer), 1371.303 × 4 Da
Total weight
22083.8 Da
Max. entity weight
8299.294 Da
Source organism
Homo sapiens
Exptl. method
solution NMR
Data set
assigned_chemical_shifts, spectral_peak_list
Chem. Shift Complete
Sequence coverage: 100.0 %, Completeness: 98.3 %, Completeness (bb): 100.0 % Detail

Polymer type: polydeoxyribonucleotide

Total1H
All98.3 % (236 of 240)98.3 % (236 of 240)
Suger, PO4100.0 % (182 of 182)100.0 % (182 of 182)
Nucleobase93.1 % (54 of 58)93.1 % (54 of 58)
Aromatic92.3 % (48 of 52)92.3 % (48 of 52)
Methyl100.0 % (6 of 6)100.0 % (6 of 6)

1. G-quadruplex DNA (26-MER)

AAAGGGTTAG GGTTAGGGTT AGGGAA

Sample #1

Solvent system 90% H2O/10% D2O, Pressure 1 atm, Temperature 298 K, pH 7.0, Details 1 mM 15N Thymine G-quadruplex DNA (26-MER), 3 mM Pt-tripod, 25 mM potassium phosphate, 70 mM potassium chloride, 90% H2O/10% D2O


#NameIsotope labelingTypeConcentration
1G-quadruplex DNA (26-MER)[U-15N]-Thyprotein1 mM
2Pt-tripodnatural abundance3 mM
3potassium chloridenatural abundancesalt70 mM
4potassium phosphatenatural abundancebuffer25 mM
5H2Onatural abundancesolvent90 %
6D2O[U-2H]solvent10 %
Sample #2

Solvent system 90% H2O/10% D2O, Pressure 1 atm, Temperature 298 K, pH 7.0, Details 1 mM G-quadruplex DNA (26-MER), 3 mM Pt-tripod, 25 mM potassium phosphate, 70 mM potassium chloride, 90% H2O/10% D2O


#NameIsotope labelingTypeConcentration
7G-quadruplex DNA (26-MER)natural abundanceprotein1 mM
8Pt-tripodnatural abundance3 mM
9potassium chloridenatural abundancesalt70 mM
10potassium phosphatenatural abundancebuffer25 mM
11H2Onatural abundancesolvent90 %
12D2O[U-2H]solvent10 %

Release date
2019-01-27
Citation
Solution structures of multiple G-quadruplex complexes induced by a platinum(II)-based tripod reveal dynamic binding
Liu, W., Zhong, Y.F., Liu, L.Y., Shen, C.T., Zeng, W., Wang, F., Yang, D., Mao, Z.W.
Nat. Commun. (2018), 9, 3496-3496, PubMed 30158518 , DOI 10.1038/s41467-018-05810-4 ,
Related entities 1. G-quadruplex DNA (26-MER), : 2 entities Detail
Experiments performed 7 experiments Detail
Chemical shift validation 4 contents Detail
Keywords DNA, Dimeric G-quadruplex, G-quadruplex complex, Human Telomeric G-quadruplex, Platinum(II) complex