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Use of an ion-binding site to bypass the 1000-atom limit to ab initio structure determination by direct methods
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1LW9 PDB ENTRY 1LW9
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 6.7 sodium:potassium phosphate, pH 6.7, VAPOR DIFFUSION, HANGING DROP, temperature 100K, pH 6.70
Crystal Properties Matthews coefficient Solvent content 2.6 52.41
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 60.199 α = 90 b = 60.199 β = 90 c = 95.242 γ = 120
Symmetry Space Group P 32 2 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 IMAGE PLATE MAR scanner 345 mm plate 2000-12-04 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRL BEAMLINE BL9-1 SSRL BL9-1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge 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 1.06 22 96.3 0.052 7.4 11.1 87349
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.06 1.12 91.4 0.304 4 3.2
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 1LW9 1.06 22 87347 87347 4321 0.1201 0.1201 0.128 0.1447 0.1498 RANDOM
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 s_from_restr_planes 0.385 s_zero_chiral_vol 0.093 s_anti_bump_dis_restr 0.09 s_non_zero_chiral_vol 0.081 s_approx_iso_adps 0.061 s_similar_adp_cmpnt 0.043 s_angle_d 0.032 s_bond_d 0.022 s_rigid_bond_adp_cmpnt 0.005 s_similar_dist
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1380 Nucleic Acid Atoms Solvent Atoms 361 Heterogen Atoms 19
Software Software Software Name Purpose SHELXL-97 refinement SCALA data scaling TNT refinement MAR345 data collection MOSFLM data reduction CCP4 data scaling TNT phasing