6I7M

Influenza A nucleoprotein docked into 3D helical structure of the wild type ribonucleoprotein complex obtained using cryoEM. Conformation 4.


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2IQH 
Sample
Influenza A virus
Specimen Preparation
Sample Aggregation StateHELICAL ARRAY
Vitrification InstrumentLEICA EM CPC
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles2743
Reported Resolution (Å)10
Resolution MethodOTHER
Other Details
Refinement Type
Symmetry TypeHELICAL
Axial SymmetryD1
Axial Rise29.26
Angular Rotation-55.82
Map-Model Fitting and Refinement
Id1 (2IQH)
Refinement SpaceREAL
Refinement ProtocolRIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON II (4k x 4k)
Electron Dose (electrons/Å**2)2
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1500
Maximum Defocus (nm)3000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
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
PARTICLE SELECTIONXmipp3.0
IMAGE ACQUISITIONEPU
CTF CORRECTIONCTFFIND4.0
MODEL FITTINGUCSF Chimera1.12
INITIAL EULER ASSIGNMENTIHRSR18.0
FINAL EULER ASSIGNMENTRELION2.0
CLASSIFICATIONRELION2.0
RECONSTRUCTIONRELION2.0
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION137461Manual picking