4ZXK

Carbohydrate binding domain from Streptococcus pneumoniae NanA sialidase


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP9293.15DL-malic acid, MES, tris base, PEG 1500 valine
Crystal Properties
Matthews coefficientSolvent content
2.0840.9

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 39.234α = 90
b = 66.984β = 92.43
c = 66.792γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDRIGAKU2012-05-28MSINGLE 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
11.845096.80.03149.12.529236
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)
11.841.8773.90.06921123

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2SLI1.845027743148196.940.16470.16240.2082RANDOM17.495
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]
-0.7-0.53-0.190.84
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg41.268
r_dihedral_angle_4_deg13.724
r_dihedral_angle_3_deg12.806
r_dihedral_angle_1_deg7.433
r_angle_refined_deg1.988
r_chiral_restr0.164
r_bond_refined_d0.021
r_gen_planes_refined0.012
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2962
Nucleic Acid Atoms
Solvent Atoms318
Heterogen Atoms

Software

Software
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
PHASERphasing