7EFC

1.70 A cryo-EM structure of streptavidin


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.339
r_lrange_other24.773
r_lrange_it24.549
r_dihedral_angle_4_deg24.548
r_dihedral_angle_3_deg13.613
r_scangle_it9.329
r_scangle_other9.322
r_mcangle_it8.972
r_mcangle_other8.966
r_dihedral_angle_1_deg8.664
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.339
r_lrange_other24.773
r_lrange_it24.549
r_dihedral_angle_4_deg24.548
r_dihedral_angle_3_deg13.613
r_scangle_it9.329
r_scangle_other9.322
r_mcangle_it8.972
r_mcangle_other8.966
r_dihedral_angle_1_deg8.664
r_scbond_it5.947
r_scbond_other5.941
r_mcbond_other5.552
r_mcbond_it5.546
r_angle_refined_deg3.022
r_angle_other_deg2.26
r_ext_dist_refined_d0.409
r_nbtor_refined0.099
r_nbd_refined0.051
r_symmetry_nbd_other0.049
r_symmetry_nbtor_other0.038
r_nbd_other0.035
r_chiral_restr0.03
r_bond_refined_d0.027
r_xyhbond_nbd_refined0.027
r_bond_other_d0.026
r_symmetry_nbd_refined0.026
r_symmetry_xyhbond_nbd_refined0.022
r_gen_planes_refined0.001
r_gen_planes_other
Sample
Streptavidin
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles153976
Reported Resolution (Å)1.7
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryD2
Map-Model Fitting and Refinement
Id1 (5N7X, 1MK5)
Refinement SpaceRECIPROCAL
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å**2)70
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONEPU
CTF CORRECTIONCTFFIND4.1.13
MODEL FITTINGMOLREP
INITIAL EULER ASSIGNMENTRELION3.1
FINAL EULER ASSIGNMENTRELION3.1
RECONSTRUCTIONRELION3.1
MODEL REFINEMENTREFMAC5.8.0272
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION