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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 3.04 59.5
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 91.193 α = 90 b = 91.193 β = 90 c = 143.546 γ = 120
Symmetry Space Group P 61 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 CCD ADSC QUANTUM 315 M SINGLE WAVELENGTH 2 1
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID23-1 ESRF ID23-1 2 SYNCHROTRON ESRF BEAMLINE ID14-4 ESRF ID14-4
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 2.3 79.06 0.144 2 11.4 15139 2.2
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) 2.3 2.36 0.341 7.8 11.9 2315
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 2.3 53.1 15139 808 97.72 0.19436 0.19156 0.2001 0.24654 0.2525 RANDOM 8.444
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] 0.59 0.3 0.59 -0.89
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 39.552 r_dihedral_angle_3_deg 14.79 r_dihedral_angle_4_deg 14.671 r_dihedral_angle_1_deg 10.141 r_scangle_it 3.267 r_scbond_it 2.372 r_angle_refined_deg 1.487 r_mcangle_it 1.079 r_mcbond_it 0.99 r_nbtor_refined 0.29
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 39.552 r_dihedral_angle_3_deg 14.79 r_dihedral_angle_4_deg 14.671 r_dihedral_angle_1_deg 10.141 r_scangle_it 3.267 r_scbond_it 2.372 r_angle_refined_deg 1.487 r_mcangle_it 1.079 r_mcbond_it 0.99 r_nbtor_refined 0.29 r_nbd_refined 0.205 r_symmetry_vdw_refined 0.192 r_symmetry_hbond_refined 0.148 r_xyhbond_nbd_refined 0.141 r_chiral_restr 0.088 r_bond_refined_d 0.016 r_gen_planes_refined 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1850 Nucleic Acid Atoms Solvent Atoms 97 Heterogen Atoms 50
Software Software Software Name Purpose REFMAC refinement