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Crystal structure of a toxin chimera between Lqh-alpha-IT from the scorpion Leiurus quinquestriatus hebraeus and AAH2 from Androctonus australis hector
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1AHO PDB ENTRY 1AHO
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 5.6 296 100mM trisodium citrate dihydrate, 1M mono-ammonium dihydrogen phosphate, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 296K
Crystal Properties Matthews coefficient Solvent content 2.64 52.96
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 74.523 α = 90 b = 74.523 β = 90 c = 56.973 γ = 90
Symmetry Space Group I 4 2 2
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 ADSC QUANTUM 4 2002-12-12 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID14-4 1.003 ESRF ID14-4
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 1.3 52.7 97.6 0.041 0.041 25.9 12 19554 -3 14.115
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.3 1.35 88.7 0.252 0.051 5.1 12 19647
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MIR THROUGHOUT PDB ENTRY 1AHO 1.3 52.7 18549 1002 97.57 0.15472 0.15472 0.15349 0.1692 0.17802 RANDOM 14.787
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] -1.96 -1.96 3.91
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_1_deg 7.483 r_scangle_it 4.763 r_scbond_it 3.348 r_mcangle_it 2.176 r_angle_refined_deg 1.686 r_mcbond_it 1.574 r_angle_other_deg 0.844 r_symmetry_hbond_refined 0.253 r_nbd_other 0.249 r_nbd_refined 0.22
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_1_deg 7.483 r_scangle_it 4.763 r_scbond_it 3.348 r_mcangle_it 2.176 r_angle_refined_deg 1.686 r_mcbond_it 1.574 r_angle_other_deg 0.844 r_symmetry_hbond_refined 0.253 r_nbd_other 0.249 r_nbd_refined 0.22 r_xyhbond_nbd_refined 0.196 r_symmetry_vdw_other 0.157 r_chiral_restr 0.109 r_nbtor_other 0.082 r_symmetry_vdw_refined 0.061 r_bond_refined_d 0.016 r_gen_planes_refined 0.009 r_gen_planes_other 0.004 r_bond_other_d 0.002
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 518 Nucleic Acid Atoms Solvent Atoms 119 Heterogen Atoms 18
Software Software Software Name Purpose REFMAC refinement DENZO data reduction SCALEPACK data scaling MOLREP phasing