6PU5

MicroED structure of proteinase K recorded on CetaD


ELECTRON CRYSTALLOGRAPHY

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 66.671α = 90
b = 66.671β = 90
c = 100.48γ = 90
Symmetry
Space GroupP 43 21 2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.1
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
2.12.1692.61.6120.26913.5

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
ELECTRON CRYSTALLOGRAPHYMOLECULAR REPLACEMENTTHROUGHOUTPDB entry 5K7S2.72.7648342197.6210.2340.23130.2659Copied from PDB entry 5K7S20.835
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]
-0.293-0.2930.585
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.277
r_dihedral_angle_4_deg16.422
r_dihedral_angle_3_deg15.494
r_dihedral_angle_1_deg6.585
r_lrange_other4.607
r_lrange_it4.606
r_scangle_it2.837
r_scangle_other2.836
r_mcangle_it2.221
r_mcangle_other2.221
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.277
r_dihedral_angle_4_deg16.422
r_dihedral_angle_3_deg15.494
r_dihedral_angle_1_deg6.585
r_lrange_other4.607
r_lrange_it4.606
r_scangle_it2.837
r_scangle_other2.836
r_mcangle_it2.221
r_mcangle_other2.221
r_scbond_it1.615
r_scbond_other1.614
r_angle_refined_deg1.425
r_angle_other_deg1.352
r_mcbond_it1.267
r_mcbond_other1.264
r_nbd_other0.26
r_nbd_refined0.221
r_symmetry_nbd_other0.202
r_nbtor_refined0.174
r_symmetry_nbd_refined0.16
r_xyhbond_nbd_refined0.138
r_symmetry_nbtor_other0.082
r_chiral_restr0.051
r_bond_refined_d0.008
r_gen_planes_refined0.005
r_gen_planes_other0.002
r_symmetry_xyhbond_nbd_refined0.002
r_bond_other_d0.001

Software

Software
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
Aimlessdata scaling
MOLREPphasing
Sample
Proteinase K
Specimen Preparation
Sample Aggregation State3D ARRAY
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodCRYSTALLOGRAPHY
Number of Particles
Reported Resolution (Å)2.7
Resolution MethodDIFFRACTION PATTERN/LAYERLINES
Other Details
Refinement Type
Symmetry Type3D CRYSTAL
Space Group Name
Length a66.6714
Length b66.6714
Length c66.6714
Angle Alpha90
Angle Beta90
Angle Gamma90
Map-Model Fitting and Refinement
Id1 (5K7S)
Refinement SpaceRECIPROCAL
Refinement ProtocolOTHER
Refinement Target
Overall B Value23.033
Fitting Procedure
DetailsElectron scattering factors
Data Acquisition
Detector TypeFEI CETA (4k x 4k)
Electron Dose (electrons/Å**2)0.024069
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TALOS ARCTICA
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeDIFFRACTION
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)200
Imaging Details
EM Software
TaskSoftware PackageVersion
MODEL FITTINGMOLREP11.7.01
MODEL REFINEMENTREFMAC5.8.0238
MOLECULAR REPLACEMENTMOLREP11.7.01
SYMMETRY DETERMINATIONPOINTLESS1.11.19
CRYSTALLOGRAPHY MERGINGAIMLESS0.7.4
RECONSTRUCTIONREFMAC5.8.0238
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
NONE