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Structure of human insulin cocrystallized with protamine and urea
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7INS insulin trimer R-conformation
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.3 291 60mM m-cresol, 3M urea, 1.0 mg/ml protamine sulphate, 400mM NaCl, 40mM phosphate buffer, pH 7.3, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Crystal Properties Matthews coefficient Solvent content 2.33 47.18
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 61.66 α = 90 b = 61.66 β = 90 c = 85.54 γ = 90
Symmetry Space Group P 43 21 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 MARMOSAIC 225 mm CCD 2004-01-23 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON MAX II BEAMLINE I911-5 0.969 MAX II I911-5
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 1.52 50 93 0.082 14.4 8 27022 25119 30.5
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 1.52 1.6 74.7 0.33 4.9 6 4630
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 insulin trimer R-conformation 1.52 25.88 23837 1276 95.99 0.18391 0.18253 0.1937 0.20947 0.2206 RANDOM 28.01
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] -0.01 -0.01 0.02
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 32.987 r_dihedral_angle_3_deg 11.45 r_dihedral_angle_4_deg 8.404 r_dihedral_angle_1_deg 6.769 r_scangle_it 4.054 r_scbond_it 2.61 r_mcangle_it 1.667 r_angle_refined_deg 1.545 r_angle_other_deg 0.945 r_mcbond_it 0.935
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 32.987 r_dihedral_angle_3_deg 11.45 r_dihedral_angle_4_deg 8.404 r_dihedral_angle_1_deg 6.769 r_scangle_it 4.054 r_scbond_it 2.61 r_mcangle_it 1.667 r_angle_refined_deg 1.545 r_angle_other_deg 0.945 r_mcbond_it 0.935 r_symmetry_vdw_refined 0.334 r_symmetry_hbond_refined 0.305 r_xyhbond_nbd_refined 0.294 r_nbd_refined 0.289 r_mcbond_other 0.287 r_nbtor_refined 0.205 r_nbd_other 0.195 r_symmetry_vdw_other 0.187 r_metal_ion_refined 0.184 r_chiral_restr 0.103 r_nbtor_other 0.09 r_bond_refined_d 0.014 r_gen_planes_refined 0.007 r_bond_other_d 0.002 r_gen_planes_other 0.001
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1163 Nucleic Acid Atoms Solvent Atoms 99 Heterogen Atoms 66
Software Software Software Name Purpose REFMAC refinement XDS data reduction XSCALE data scaling MOLREP phasing