4S2X

Structure of E. coli RppH bound to RNA and two magnesium ions


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7295crystal growth: 0.4 M ammonium sulfate, 12% PEG 3350, 10%glycerol. crystal soaking: 0.05 M MOPS-Na pH 7.0, 0.05 M ammonium sulfate, 0.05 M magnesium chloride, 15% PEG3350 and 25% pentaerythritol propoxylate 5/4 PO/OH, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Crystal Properties
Matthews coefficientSolvent content
2.1442.56

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 78.499α = 90
b = 38.868β = 100.13
c = 57.201γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS 6M2013-04-23MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X251.1NSLSX25

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
11.52095.50.0416.6268272625211
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.51.59930.5962.656.54066

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 4S2W1.519.432488924889131095.520.190340.190340.188970.21592RANDOM29.221
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]
-0.85-0.821.48-0.92
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.797
r_sphericity_free28.598
r_dihedral_angle_4_deg19.752
r_sphericity_bonded18.384
r_dihedral_angle_3_deg11.022
r_dihedral_angle_1_deg6.36
r_rigid_bond_restr2.741
r_angle_refined_deg0.998
r_chiral_restr0.068
r_bond_refined_d0.005
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.797
r_sphericity_free28.598
r_dihedral_angle_4_deg19.752
r_sphericity_bonded18.384
r_dihedral_angle_3_deg11.022
r_dihedral_angle_1_deg6.36
r_rigid_bond_restr2.741
r_angle_refined_deg0.998
r_chiral_restr0.068
r_bond_refined_d0.005
r_gen_planes_refined0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1261
Nucleic Acid Atoms54
Solvent Atoms109
Heterogen Atoms12

Software

Software
Software NamePurpose
CBASSdata collection
PHENIXmodel building
REFMACrefinement
XDSdata reduction
XDSdata scaling
PHENIXphasing