3NQJ

Crystal structure of (CENP-A/H4)2 heterotetramer


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.52950.17 M ammonium sulfate, 0.085 M sodium cacodylate (pH 6.5), 25.5% PEG-8000, 15% glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Crystal Properties
Matthews coefficientSolvent content
2.448.86

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 62.869α = 90
b = 62.869β = 90
c = 159.512γ = 120
Symmetry
Space GroupP 65 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray193CCDADSC QUANTUM 3152010-04-21MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 8.2.21.00ALS8.2.2

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
12.0854.4597.560.0830.05723.398.221187611585
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)
2.082.2187.70.4470.5354.37.41825

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 3NQU2.120110001096155099.650.182490.182490.17970.24141RANDOM38.104
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]
-1.63-0.81-1.632.44
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg28.232
r_dihedral_angle_4_deg17.462
r_dihedral_angle_3_deg14.489
r_dihedral_angle_1_deg5.339
r_scangle_it3.825
r_scbond_it2.237
r_angle_refined_deg1.329
r_mcangle_it1.196
r_mcbond_it0.636
r_chiral_restr0.088
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg28.232
r_dihedral_angle_4_deg17.462
r_dihedral_angle_3_deg14.489
r_dihedral_angle_1_deg5.339
r_scangle_it3.825
r_scbond_it2.237
r_angle_refined_deg1.329
r_mcangle_it1.196
r_mcbond_it0.636
r_chiral_restr0.088
r_bond_refined_d0.014
r_gen_planes_refined0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1162
Nucleic Acid Atoms
Solvent Atoms136
Heterogen Atoms20

Software

Software
Software NamePurpose
HKL-2000data collection
PHASERphasing
REFMACrefinement
XDSdata reduction
XDSdata scaling