4ENA

Crystal structure of fluoride riboswitch, soaked in Cs+


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION72930.1 M sodium cacodylate, pH 7.0, 20 mM spermine, 100 mM cesium chloride, 50 mM magnesium chloride, 20% MPD, VAPOR DIFFUSION, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
2.8456.71

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 58.742α = 90
b = 77.149β = 90
c = 42.477γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 24-ID-CAPS24-ID-C

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)R Sym I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.85200.1060.10213.74.44798

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTPDB ENTRY 4ENB2.8519.9731.35479845996.820.22920.22510.264
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
5.5137-17.158511.6449
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d16.86
f_angle_d1.126
f_chiral_restr0.061
f_bond_d0.036
f_plane_restr0.009
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms
Nucleic Acid Atoms1122
Solvent Atoms19
Heterogen Atoms13

Software

Software
Software NamePurpose
ADSCdata collection
PHENIXmodel building
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing