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2.20 A MicroED structure of proteinase K at 4.3 e- / A^2
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6CL7 PDB entry 6CL7
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 67.253 α = 90 b = 67.253 β = 90 c = 100.933 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 2016-03-07
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-Free (Depositor) R-Free Selection Details Mean Isotropic B ELECTRON CRYSTALLOGRAPHY FOURIER SYNTHESIS THROUGHOUT PDB entry 6CL7 2.2 50.01 10768 740 93.3 0.24265 0.23853 0.30184 RANDOM 24.639
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] 0.15 0.15 -0.3
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 37.048 r_dihedral_angle_3_deg 16.886 r_dihedral_angle_4_deg 10.713 r_dihedral_angle_1_deg 7.518 r_long_range_B_other 5.161 r_long_range_B_refined 5.16 r_scangle_other 3.508 r_mcangle_it 2.757 r_mcangle_other 2.757 r_scbond_it 2.084
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 37.048 r_dihedral_angle_3_deg 16.886 r_dihedral_angle_4_deg 10.713 r_dihedral_angle_1_deg 7.518 r_long_range_B_other 5.161 r_long_range_B_refined 5.16 r_scangle_other 3.508 r_mcangle_it 2.757 r_mcangle_other 2.757 r_scbond_it 2.084 r_scbond_other 2.083 r_mcbond_it 1.619 r_mcbond_other 1.616 r_angle_refined_deg 1.583 r_angle_other_deg 1.104 r_chiral_restr 0.089 r_bond_other_d 0.076 r_bond_refined_d 0.014 r_gen_planes_refined 0.006 r_gen_planes_other 0.003 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
Software Software Software Name Purpose REFMAC refinement MOSFLM data reduction Aimless data scaling
Specimen Preparation Sample Aggregation State 3D ARRAY Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method CRYSTALLOGRAPHY Number of Particles Reported Resolution (Å) 2.2 Resolution Method DIFFRACTION PATTERN/LAYERLINES Other Details Refinement Type Symmetry Type 3D CRYSTAL Space Group Name Length a 67.2526 Length b 67.2526 Length c 67.2526 Angle Alpha 90 Angle Beta 90 Angle Gamma 90
Map-Model Fitting and Refinement Id 1 (5I9S) Refinement Space RECIPROCAL Refinement Protocol OTHER Refinement Target Overall B Value 24.639 Fitting Procedure Details Electron scattering factors
Data Acquisition Detector Type TVIPS TEMCAM-F416 (4k x 4k) Electron Dose (electrons/Å**2) 0.0357
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TECNAI F20 Minimum Defocus (nm) Maximum Defocus (nm) Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode DIFFRACTION Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION EM-Menu 4.0.9.75 MODEL FITTING MOLREP 11.4.05 MOLECULAR REPLACEMENT MOLREP 11.4.05 SYMMETRY DETERMINATION POINTLESS 1.11.3 CRYSTALLOGRAPHY MERGING AIMLESS 0.5.32 MODEL REFINEMENT REFMAC 5.8.0194
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE