8BMP

Cryo-EM structure of the folate-specific ECF transporter complex in MSP2N2 lipid nanodiscs bound to ATP and ADP


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d5.664
f_angle_d0.575
f_chiral_restr0.043
f_plane_restr0.004
f_bond_d0.003
Sample
Folate-specific ECF transporter complex
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE-PROPANE
Sample Vitrification Details5 mM Mg-ATP and 10 uM folate were added to the concentrated sample and incubated at 37 degC for 10 min. 2.9 mM fluorinated Fos-choline 8 was added pri ...5 mM Mg-ATP and 10 uM folate were added to the concentrated sample and incubated at 37 degC for 10 min. 2.9 mM fluorinated Fos-choline 8 was added prior to sample application onto grids. Grids were blotted for 3.5-4 sec.
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles167227
Reported Resolution (Å)3.2
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1
Refinement SpaceREAL
Refinement ProtocolRIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)50.1
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TALOS ARCTICA
Minimum Defocus (nm)800
Maximum Defocus (nm)1800
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification130000
Calibrated Magnification48924
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)200
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcrYOLO1.7.5
IMAGE ACQUISITIONEPU2.7.0
IMAGE ACQUISITIONSerialEM3.8.0 beta
CTF CORRECTIONCTFFIND4.1.14
MODEL FITTINGCoot0.9.8.1
MODEL REFINEMENTPHENIX1.20.1-4487-000
INITIAL EULER ASSIGNMENTcryoSPARC3.3.2
FINAL EULER ASSIGNMENTcryoSPARC3.3.2
RECONSTRUCTIONcryoSPARC3.3.2
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION1207115