4QB4

Crystal Structure of Staphylococcal Nuclease mutant V23L/L25V/V66L


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP72770.6 M Ammonium sulfate, MPD 50-60%, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K, temperature 277.0K
Crystal Properties
Matthews coefficientSolvent content
2.3547.7

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 47.93α = 90
b = 47.93β = 90
c = 63.68γ = 90
Symmetry
Space GroupP 41

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray293CCDRIGAKU SATURN 92mirrors2011-04-19MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU1.5418

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
11.619.40979.10.0411.31.9629329150013
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.61.6611.8

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)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 REPLACEMENTTHROUGHOUT1.619.409293291421179079.090.182830.179910.23631RANDOM36.833
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]
0.660.66-1.33
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.347
r_dihedral_angle_3_deg19.068
r_dihedral_angle_4_deg9.495
r_scangle_it7.459
r_dihedral_angle_1_deg6.454
r_scbond_it4.511
r_mcangle_it2.708
r_angle_refined_deg2.317
r_mcbond_it1.428
r_chiral_restr0.162
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.347
r_dihedral_angle_3_deg19.068
r_dihedral_angle_4_deg9.495
r_scangle_it7.459
r_dihedral_angle_1_deg6.454
r_scbond_it4.511
r_mcangle_it2.708
r_angle_refined_deg2.317
r_mcbond_it1.428
r_chiral_restr0.162
r_bond_refined_d0.026
r_gen_planes_refined0.01
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1092
Nucleic Acid Atoms
Solvent Atoms140
Heterogen Atoms

Software

Software
Software NamePurpose
CrystalCleardata collection
CCP4model building
REFMACrefinement
d*TREKdata reduction
d*TREKdata scaling
CCP4phasing