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THE X-RAY STRUCTURE OF A COMPLEX OF TERN N9 INFLUENZA VIRUS NEURAMINIDASE COMPLEXED WITH SIALIC ACID AT 4 DEGREES C REVEALING A SECOND SIALIC ACID BINDING SITE
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model Other TERN N9 NEURAMINIDASE
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 5.9 1.9M PHOSPHATE (PH 5.9)
Crystal Properties Matthews coefficient Solvent content 2.83 54
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 181.04 α = 90 b = 181.04 β = 90 c = 181.04 γ = 90
Symmetry Space Group I 4 3 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 106 IMAGE PLATE RIGAKU RAXIS II YALE MIRRORS 1997-01-02 M
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE MACSCIENCE M18X
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) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 1.7 100 96.6 0.076 0.085 9.6 5.07 291377 1
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.7 1.8 91.8
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Work (Depositor) R-Free (Depositor) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT TERN N9 NEURAMINIDASE 1.7 6 1 44274 96.6
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 Key Refinement Restraint Deviation x_dihedral_angle_d 25.6 x_scangle_it 3.5 x_mcangle_it 3 x_scbond_it 3 x_mcbond_it 2.5 x_angle_deg 1.9 x_improper_angle_d 1.53 x_bond_d 0.016 x_bond_d_na x_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 25.6 x_scangle_it 3.5 x_mcangle_it 3 x_scbond_it 3 x_mcbond_it 2.5 x_angle_deg 1.9 x_improper_angle_d 1.53 x_bond_d 0.016 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg_na x_angle_deg_prot x_dihedral_angle_d_na x_dihedral_angle_d_prot x_improper_angle_d_na x_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3067 Nucleic Acid Atoms Solvent Atoms 396 Heterogen Atoms 191
Software Software Software Name Purpose R-AXIS data collection PROTEIN data reduction X-PLOR model building X-PLOR refinement R-AXIS data reduction PROTEIN data scaling X-PLOR phasing