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NMR solution structures of the DNA minidumbbell formed by two CmCTG repeats at pH 5
Authors
Wan, L., Guo, P., Lam, S.L.
Assembly
DNA (5'-D(*(DCZ)P*(5CM)P*TP*GP*CP*(5CM)P*TP*G)-3')
Entity
1. DNA (5'-D(*(DCZ)P*(5CM)P*TP*GP*CP*(5CM)P*TP*G)-3') (polymer, Thiol state: not present), 8 monomers, 2389.613 Da Detail

XXTGCXTG


2. SODIUM ION (non-polymer), 22.990 × 5 Da
Total weight
2504.563 Da
Max. entity weight
2389.613 Da
Source organism
Homo sapiens
Exptl. method
solution NMR
Data set
assigned_chemical_shifts, spectral_peak_list
Chem. Shift Complete
Sequence coverage: 62.5 %, Completeness: 87.8 %, Completeness (bb): 94.3 % Detail

Polymer type: polydeoxyribonucleotide

Total1H
All87.8 % (43 of 49)87.8 % (43 of 49)
Suger, PO494.3 % (33 of 35)94.3 % (33 of 35)
Nucleobase71.4 % (10 of 14)71.4 % (10 of 14)
Aromatic60.0 % (6 of 10)60.0 % (6 of 10)
Methyl100.0 % (2 of 2)100.0 % (2 of 2)

1. DNA (5'-D(*(DCZ)P*(5CM)P*TP*GP*CP*(5CM)P*TP*G)-3')

XXTGCXTG

Sample

Solvent system 99.96% D2O, Pressure 1 atm, Temperature 273 K, pH 5 (±0.1), Details 0.2 mM NA DNA, 0.02 mM NA DSS, 10 mM NA NaCl, 99.96% D2O


#NameIsotope labelingTypeConcentration
1DNAnatural abundanceDNA0.2 (±0.02) mM
2DSSnatural abundance0.02 (±0.005) mM
3NaClnatural abundancesalt10 (±1.0) mM
4D2O[U-2H]solvent99.96 %

Release date
2021-02-09
Citation
5-Methylcytosine Substantially Enhances the Thermal Stability of DNA Minidumbbells
Wan, L., Yi, J., Lam, S.L., Lee, H.K., Guo, P.
Chemistry (2021), 27, 6740-6747, PubMed 33501691 , DOI 10.1002/chem.202005410 ,
Experiments performed 3 experiments Detail
nullKeywords 5-methylcytosine, CCTG, DNA, methylation, minidumbbell, pH 5