7UZE

Erythrocyte ankyrin-1 complex class 2 local refinement of AQP1 (C4 symmetry applied)


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d7.681
f_angle_d0.567
f_chiral_restr0.037
f_bond_d0.003
f_plane_restr0.003
Sample
Local refinement of aquaporin 1 in class 2 of ankyrin complex; local C4 symmetry applied.
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details4-6 seconds, wait time 30 seconds.
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles108425
Reported Resolution (Å)2.4
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC4
Map-Model Fitting and Refinement
Id1 (4CSK)
Refinement SpaceREAL
Refinement ProtocolFLEXIBLE FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 (6k x 4k)
Electron Dose (electrons/Å**2)58
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)500
Maximum Defocus (nm)1500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONLeginon
CTF CORRECTIONcryoSPARC3
MODEL FITTINGCoot0.9.8
INITIAL EULER ASSIGNMENTcryoSPARC3
FINAL EULER ASSIGNMENTcryoSPARC3
RECONSTRUCTIONcryoSPARC3
MODEL REFINEMENTPHENIX1.20.1
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTIONPatch CTF (cryoSPARC v3) followed by per particle defocus refinement and refinement of higher order aberrations (cryoSPARC v3)