6H2B

Structure of the Macrobrachium rosenbergii Nodavirus


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d8.816
f_angle_d0.843
f_chiral_restr0.059
f_bond_d0.007
f_plane_restr0.004
Sample
Macrobrachium rosenbergii nodavirus
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification Instrument
Cryogen NameETHANE
Sample Vitrification DetailsVLPs were deposited onto a continuous carbon film that had been floated onto a quantifoil holey carbon film (R2/2)
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles40883
Reported Resolution (Å)3.28
Resolution MethodFSC 0.143 CUT-OFF
Other DetailsStandard Relion workflow for icosahedral particle.
Refinement Type
Symmetry TypePOINT
Point SymmetryI
Map-Model Fitting and Refinement
Id1
Refinement SpaceREAL
Refinement ProtocolAB INITIO MODEL
Refinement Target
Overall B Value140
Fitting Procedure
DetailsModel built largely ab initio, following docking of a homology model based on PDB 4LLF. The homology model matched in two strands at residues - 104-13 ...Model built largely ab initio, following docking of a homology model based on PDB 4LLF. The homology model matched in two strands at residues - 104-135 and 232-243. This served as the starting point for manual model building. The model was then subjected to real space refinement using Phenix.
Data Acquisition
Detector TypeGATAN K2 QUANTUM (4k x 4k)
Electron Dose (electrons/Å**2)36
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1000
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 Magnification
Calibrated Magnification47170
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONEPU
CTF CORRECTIONRELION2.1
MODEL FITTINGCoot
INITIAL EULER ASSIGNMENTRELION2.1
FINAL EULER ASSIGNMENTRELION2.1
CLASSIFICATIONRELION
RECONSTRUCTIONRELION2.1
MODEL REFINEMENTPHENIX
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION60939Automated particle picking in Relion 2.1