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NMR structure of KRAS32R G25T conformer G-quadruplex within KRAS promoter region
Authors
Marquevielle, J., Salgado, G.
Assembly
KRAS32R G25T
Entity
1. KRAS32R G25T, entity 1 (polymer, Thiol state: not present), 32 monomers, 10309.54 Da Detail

AGGGCGGTGT GGGAAGAGGG AAGATGGGGA GG


2. KRAS32R G25T, entity K (non-polymer), 39.098 × 2 Da
Total weight
10387.736 Da
Max. entity weight
10309.54 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: 86.0 %, Completeness (bb): 90.2 % Detail

Polymer type: polydeoxyribonucleotide

Total1H
All86.0 % (252 of 293)86.0 % (252 of 293)
Suger, PO490.2 % (202 of 224)90.2 % (202 of 224)
Nucleobase72.5 % (50 of 69)72.5 % (50 of 69)
Aromatic73.4 % (47 of 64)73.4 % (47 of 64)
Methyl100.0 % (3 of 3)100.0 % (3 of 3)

1. entity 1

AGGGCGGTGT GGGAAGAGGG AAGATGGGGA GG

Sample #1

Solvent system 90% H2O/10% D2O, Pressure 1 atm, Temperature 310 K, pH 6.66, Details 2 mM KRAS32R G25T no labelled, 90% H2O/10% D2O


#NameIsotope labelingTypeConcentration
1KRAS32R G25T no labellednatural abundance2 mM
2KClnatural abundance50 mM
3KPinatural abundance10 mM
Sample #2

Solvent system 90% H2O/10% D2O, Pressure 1 atm, Temperature 310 K, pH 6.66, Details 0.5 mM [U-99% 13C; U-99% 15N] KRAS32R G25T, 90% H2O/10% D2O


#NameIsotope labelingTypeConcentration
4KRAS32R G25T[U-99% 13C; U-99% 15N]0.5 mM
5KClnatural abundance50 mM
6KPinatural abundance10 mM

Release date
2019-10-24
Citation
Structure of two G-quadruplexes in equilibrium in the KRAS promoter
Marquevielle, J., Robert, C., Lagrabette, O., Wahid, M., Bourdoncle, A., Xodo, L., Mergny, J.L., Salgado, G.
Nucleic Acids Res. (2020), 48, 9336-9345, PubMed 32432667 , DOI 10.1093/nar/gkaa387 ,
Experiments performed 3 experiments Detail
Chemical shift validation 4 contents Detail
Keywords DNA, KRAS G-quadruplex