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Xray structure of scorpion toxin BmBKTx1
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 3.5 292 0.1 M citric acid, 2 M ammonium sulfate, pH 3.5, VAPOR DIFFUSION, HANGING DROP, temperature 292K
Crystal Properties Matthews coefficient Solvent content 1.9 35.31
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 56.633 α = 90 b = 56.633 β = 90 c = 31.759 γ = 90
Symmetry Space Group I 41/a
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD MAR CCD 300 2007-08-10 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 23-ID-D 0.97911 APS 23-ID-D
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 1.1 20 99.78 0.045 41.6 5.9 17925 10.1
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) 1.1 1.129 97.33 0.417 2.35 5.9
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) 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 AB INITIO PHASING THROUGHOUT 1.1 20 17925 2035 99.78 0.20175 0.20006 0.204 0.21737 0.2215 RANDOM 12.096
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] 0.1 0.1 -0.21
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 21.906 r_dihedral_angle_3_deg 11.966 r_sphericity_free 10.207 r_sphericity_bonded 5.928 r_scangle_it 5.335 r_dihedral_angle_1_deg 5.074 r_scbond_it 4.556 r_mcangle_it 3.215 r_rigid_bond_restr 2.297 r_mcbond_it 2.244
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 21.906 r_dihedral_angle_3_deg 11.966 r_sphericity_free 10.207 r_sphericity_bonded 5.928 r_scangle_it 5.335 r_dihedral_angle_1_deg 5.074 r_scbond_it 4.556 r_mcangle_it 3.215 r_rigid_bond_restr 2.297 r_mcbond_it 2.244 r_angle_refined_deg 1.92 r_nbtor_refined 0.312 r_nbd_refined 0.211 r_symmetry_vdw_refined 0.192 r_chiral_restr 0.124 r_xyhbond_nbd_refined 0.111 r_symmetry_hbond_refined 0.095 r_bond_refined_d 0.015 r_gen_planes_refined 0.01
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 240 Nucleic Acid Atoms Solvent Atoms 22 Heterogen Atoms 6
Software Software Software Name Purpose REFMAC refinement HKL-2000 data collection HKL-2000 data reduction HKL-2000 data scaling SHELXS phasing