4N0T

Core structure of the U6 small nuclear ribonucleoprotein at 1.7 Angstrom resolution


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2GHPPDB ENTRY 2GHP

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP5.5274100 mM lithium sulfate, 100 mM sodium citrate, pH 5.5, 20 % PEG 1,000, VAPOR DIFFUSION, SITTING DROP, temperature 274K
Crystal Properties
Matthews coefficientSolvent content
2.5752.06

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 61.782α = 90
b = 71.37β = 109.62
c = 82.081γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 225 mm CCD2013-06-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 21-ID-F0.97872APS21-ID-F

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
11.75099.615.3
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.71.73970.92.57.5

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (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-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 2GHP1.726.251.34146350145765469099.60.18450.18360.2109random
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_d14.673
f_angle_d1.025
f_chiral_restr0.066
f_bond_d0.006
f_plane_restr0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2934
Nucleic Acid Atoms1389
Solvent Atoms696
Heterogen Atoms5

Software

Software
Software NamePurpose
MAR345dtbdata collection
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling