3J95

Structure of ADP-bound N-ethylmaleimide sensitive factor determined by single particle cryoelectron microscopy


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d16.294
f_angle_d1.976
f_chiral_restr0.085
f_bond_d0.011
f_plane_restr0.008
Sample
ADP-bound N-ethylmaleimide sensitive factor
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK I
Cryogen NameETHANE
Sample Vitrification DetailsBlot for 3.5 seconds before plunging into liquid ethane (FEI VITROBOT MARK I).
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles12830
Reported Resolution (Å)7.6
Resolution MethodFSC 0.143 CUT-OFF
Other Details(Single particle--Applied symmetry: C1)
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (1NSF)
Refinement SpaceRECIPROCAL
Refinement ProtocolFLEXIBLE FIT
Refinement TargetR-factor
Overall B Value
Fitting Procedure
DetailsREFINEMENT PROTOCOL--flexible DETAILS--D2 domain of NSF was from crystal structure 1NSF. D1 domain of NSF was from related entry EMD-6204.
Data Acquisition
Detector TypeGATAN K2 (4k x 4k)
Electron Dose (electrons/Å**2)44
Imaging Experiment1
Date of Experiment2014-01-14
Temperature (Kelvin)
Microscope ModelFEI POLARA 300
Minimum Defocus (nm)-1800
Maximum Defocus (nm)-2800
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.3
Imaging ModeBRIGHT FIELD
Specimen Holder ModelOTHER
Nominal Magnification31000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
MODEL FITTINGPHENIX
MODEL FITTINGUCSF Chimera
RECONSTRUCTIONRELION
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
Each particle