4V92

Kluyveromyces lactis 80S ribosome in complex with CrPV-IRES

ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3B31

Sample
Kluyveromyces lactis 80S ribosome in complex with CrPV-IRES

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument	FEI VITROBOT MARK I
Cryogen Name	PROPANE
Sample Vitrification Details	LIQUID ETHANE

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	18132
Reported Resolution (Å)	3.7
Resolution Method
Other Details
Refinement Type
Symmetry Type	POINT
Point Symmetry	C1

Map-Model Fitting and Refinement
Id	1 (3B31)
Refinement Space	RECIPROCAL
Refinement Protocol	FLEXIBLE FIT
Refinement Target	R-FACTOR, FSC
Overall B Value	60
Fitting Procedure
Details	METHOD--FLEXIBLE

Data Acquisition
Detector Type	FEI FALCON II (4k x 4k)
Electron Dose (electrons/Å**2)	40

Imaging Experiment	1
Date of Experiment	2013-07-07
Temperature (Kelvin)
Microscope Model	FEI TITAN KRIOS
Minimum Defocus (nm)	1.8
Maximum Defocus (nm)	3
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS	2.7
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification	47000
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

EM Software
Task	Software Package	Version
MODEL FITTING	REFMAC
MODEL FITTING	UCSF Chimera
RECONSTRUCTION	RELION

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
	EACH PARTICLE

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.