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Self-assembly of spider silk proteins is controlled by a pH-sensitive relay
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3LR2 NT wild-type
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION Ammonium sulphate, PEG 400, VAPOR DIFFUSION
Crystal Properties Matthews coefficient Solvent content 2.33 47.14
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 68.383 α = 90 b = 68.383 β = 90 c = 97.781 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 CCD ADSC QUANTUM 315 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID23-1 ESRF ID23-1
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 2.06 59.23 0.087 7.2 5.3 14086 1.8
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) 2.06 2.206 0.421 4 5.5 2416
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 (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 NT wild-type 2.15 59.2 14086 739 99.52 0.17299 0.17013 0.1967 0.22841 0.2385 RANDOM 14.606
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] 0.78 0.39 0.78 -1.17
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 38.986 r_dihedral_angle_3_deg 14.628 r_dihedral_angle_4_deg 10.151 r_dihedral_angle_1_deg 4.894 r_scangle_it 3.016 r_scbond_it 2.236 r_angle_refined_deg 1.423 r_mcangle_it 1.133 r_mcbond_it 0.889 r_nbtor_refined 0.295
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 38.986 r_dihedral_angle_3_deg 14.628 r_dihedral_angle_4_deg 10.151 r_dihedral_angle_1_deg 4.894 r_scangle_it 3.016 r_scbond_it 2.236 r_angle_refined_deg 1.423 r_mcangle_it 1.133 r_mcbond_it 0.889 r_nbtor_refined 0.295 r_nbd_refined 0.217 r_symmetry_vdw_refined 0.194 r_symmetry_hbond_refined 0.162 r_xyhbond_nbd_refined 0.13 r_chiral_restr 0.09 r_bond_refined_d 0.016 r_gen_planes_refined 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1856 Nucleic Acid Atoms Solvent Atoms 55 Heterogen Atoms 18
Software Software Software Name Purpose REFMAC refinement