4LVX

Structure of the THF riboswitch bound to tetrahydrobiopterin


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP73032,4-methyl-pentanediol, spermine, sodium cacodylate, sodium chloride, dithiothreitol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 303K
Crystal Properties
Matthews coefficientSolvent content
2.5451.51

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 26.99α = 90
b = 68.62β = 90
c = 158.06γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315r2013-01-19MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 5.0.21.1051ALS5.0.2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.952.6999.45.7240305.55.5
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.9299.50.2210.1095.54.9

Refinement

Statistics
Diffraction IDStructure Solution MethodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENT1.928.7511.342403023940119999.160.22150.22040.2401
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]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d11.967
f_angle_d0.977
f_chiral_restr0.044
f_plane_restr0.007
f_bond_d0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms
Nucleic Acid Atoms1913
Solvent Atoms168
Heterogen Atoms34

Software

Software
Software NamePurpose
BOSdata collection
PHASERphasing
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling