2KEK

Solution structure of a dimer of LAC repressor DNA-binding domain complexed to its natural operator O3


SOLUTION NMR
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
13D 1H-13C NOESY0.7 mM DNA (5'-strand1-3'), 0.7 mM DNA (5'-strand2-3'), 0.7 mM Lac headpiece dimer, 5% D2O, 10 mM potassium phosphate, 20 mM potassium chloride, 5% U-100% 2H d8-glycerol, 0.01% sodium azide95% H2O/5% D2O0.036ambient315
23D 1H-15N NOESY0.7 mM DNA (5'-strand1-3'), 0.7 mM DNA (5'-strand2-3'), 0.7 mM Lac headpiece dimer, 5% D2O, 10 mM potassium phosphate, 20 mM potassium chloride, 5% U-100% 2H d8-glycerol, 0.01% sodium azide95% H2O/5% D2O0.036ambient315
32D 1H-1H NOESY0.7 mM DNA (5'-strand1-3'), 0.7 mM DNA (5'-strand2-3'), 0.7 mM Lac headpiece dimer, 5% D2O, 10 mM potassium phosphate, 20 mM potassium chloride, 5% U-100% 2H d8-glycerol, 0.01% sodium azide95% H2O/5% D2O0.036ambient315
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1BrukerAVANCE750
2BrukerAVANCE600
3BrukerAVANCE900
4BrukerAVANCE500
NMR Refinement
MethodDetailsSoftware
simulated annealingCNS
NMR Ensemble Information
Conformer Selection Criteriastructures with the lowest energy
Conformers Calculated Total Number200
Conformers Submitted Total Number10
Representative Model1 (lowest energy)
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1refinementCNS1.2Brunger, Adams, Clore, Gros, Nilges and Read
2chemical shift assignmentXwinNMRBruker Biospin
3processingNMRPipeDelaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
4refinementHADDOCK2.1Dominguez, Boelens, Bonvin