8BWQ

Cryo-EM structure of nanodisc-reconstituted wildtype human MRP4 (in complex with topotecan)


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d12.386
f_angle_d0.858
f_chiral_restr0.052
f_bond_d0.009
f_plane_restr0.008
Sample
Cryo-EM structure of nanodisc-reconstituted wildtype human MRP4 (in complex with topotecan)
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles56002
Reported Resolution (Å)3.9
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement ProtocolAB INITIO MODEL
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON III (4k x 4k)
Electron Dose (electrons/Å**2)40
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)500
Maximum Defocus (nm)2500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification96000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC4.0.2
IMAGE ACQUISITIONEPU
CTF CORRECTIONcryoSPARC4.0.2
MODEL FITTINGUCSF ChimeraX1.3
MODEL FITTINGCoot0.9.6 EL
MODEL FITTINGISOLDE
MODEL REFINEMENTPHENIX1.20.1
INITIAL EULER ASSIGNMENTcryoSPARC4.0.2
FINAL EULER ASSIGNMENTcryoSPARC4.0.2
RECONSTRUCTIONcryoSPARC4.0.2
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION465447