8BTZ

Single-stranded Paranemic Crossover RNA Triangle (PXT)


ELECTRON MICROSCOPY
Sample
Enzymatically synthesized and isothermally folded single stranded RNA origami
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentLEICA EM GP
Cryogen NameETHANE
Sample Vitrification Details3 microliter droplet, 4 second delay before blotting, 6 second blot, 0 second delay before plunging.
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles437831
Reported Resolution (Å)5.39
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement ProtocolFLEXIBLE FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)60
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)750
Maximum Defocus (nm)2500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification130000
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONEPU
MODEL FITTINGUCSF ChimeraX1.2
MODEL FITTINGISOLDE1.2
RECONSTRUCTIONcryoSPARC3.2.0
MODEL REFINEMENTPHENIX1.19.2-4158-000
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION