6HEB

Influenza A Virus N9 Neuraminidase complex with Oseltamivir (Tern).


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 7NN9 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.6293N9 crystals were grown by hanging drop vapour diffusion against a reservoir of 1.9M potassium phosphate, pH 6.8, starting with equal volumes of N9 NA(10-15mg/ml in water) and potassium phosphate buffer 1.4M KH2PO4:3M K2HPO4 in ratio 8:4, pH 6.6 at 20 degrees celsius. Inhibitor complexeswere obtained by soaking N9 crystals in a solution of 1.4M potassium phosphate buffer, pH 6.8, containing 5 mM of inhibitor for 3 hours at 18 degrees celsius. Glycerol cryo-buffer also soaked in.
Crystal Properties
Matthews coefficientSolvent content
2.8156.24

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 180.691α = 90
b = 180.691β = 90
c = 180.691γ = 90
Symmetry
Space GroupI 4 3 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152001-12-13MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL11-10.85SSRLBL11-1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)Rrim I (All)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
11.7563.971000.0986.49.24804714.2
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Rrim I (All)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.751.840.18315.5

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 REPLACEMENTTHROUGHOUT7NN91.7563.9748047252699.920.119810.118640.14171RANDOM14.385
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
r_dihedral_angle_2_deg33.491
r_dihedral_angle_1_deg20.747
r_dihedral_angle_4_deg18.672
r_dihedral_angle_3_deg12.767
r_long_range_B_refined5.226
r_long_range_B_other5.226
r_scangle_other3.564
r_scbond_it2.569
r_scbond_other2.569
r_angle_refined_deg1.794
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.491
r_dihedral_angle_1_deg20.747
r_dihedral_angle_4_deg18.672
r_dihedral_angle_3_deg12.767
r_long_range_B_refined5.226
r_long_range_B_other5.226
r_scangle_other3.564
r_scbond_it2.569
r_scbond_other2.569
r_angle_refined_deg1.794
r_mcangle_other1.493
r_mcangle_it1.492
r_angle_other_deg1.092
r_mcbond_it1.075
r_mcbond_other1.066
r_chiral_restr0.098
r_bond_refined_d0.016
r_gen_planes_refined0.011
r_gen_planes_other0.002
r_bond_other_d0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3067
Nucleic Acid Atoms
Solvent Atoms518
Heterogen Atoms219

Software

Software
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
REFMACphasing