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Spitrobot-2 advances time-resolvedcryo-trapping crystallography to under 25 ms: Human insulin, pH 4.5 (50 ms soaking)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1B18
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 BATCH MODE 9 293 1.0 M sodium/potassium phosphate, pH 9.0 & crystal soaking in pH 4.5 for 50 ms
Crystal Properties Matthews coefficient Solvent content 3.44 64.29
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 78.345 α = 90 b = 78.345 β = 90 c = 78.345 γ = 90
Symmetry Space Group I 21 3
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 PIXEL DECTRIS EIGER X 4M 2025-02-08 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE MASSIF-3 0.968 ESRF MASSIF-3
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) CC (Half) 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 1.439 39.173 94.4 0.994 8.2 5.97 12209
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.439 1.549 0.387
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 MOLECULAR REPLACEMENT THROUGHOUT 1.45 39.173 11584 622 84.59 0.17167 0.17041 0.1755 0.19565 0.1954 RANDOM 18.842
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 r_dihedral_angle_3_deg 12.216 r_long_range_B_refined 8.18 r_long_range_B_other 8.097 r_dihedral_angle_1_deg 6.554 r_scangle_other 6.367 r_dihedral_angle_2_deg 5.528 r_mcangle_other 4.671 r_mcangle_it 4.644 r_scbond_it 4.011 r_scbond_other 3.99
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_3_deg 12.216 r_long_range_B_refined 8.18 r_long_range_B_other 8.097 r_dihedral_angle_1_deg 6.554 r_scangle_other 6.367 r_dihedral_angle_2_deg 5.528 r_mcangle_other 4.671 r_mcangle_it 4.644 r_scbond_it 4.011 r_scbond_other 3.99 r_mcbond_it 3.026 r_mcbond_other 2.981 r_angle_refined_deg 2.051 r_angle_other_deg 0.765 r_chiral_restr 0.117 r_bond_refined_d 0.014 r_gen_planes_refined 0.011 r_bond_other_d 0.001 r_gen_planes_other 0.001 r_dihedral_angle_4_deg r_nbd_refined r_nbd_other r_nbtor_refined r_nbtor_other r_xyhbond_nbd_refined r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_refined r_symmetry_vdw_other r_symmetry_hbond_refined r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_scangle_it r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 405 Nucleic Acid Atoms Solvent Atoms 55 Heterogen Atoms 5
Software Software Software Name Purpose XDS data reduction autoPROC data reduction Aimless data scaling autoPROC data scaling PHASER phasing REFMAC refinement