5LP3

Three tetrameric rings of Isoaspartyl Dipeptidase fitted in an EM volume.

ELECTRON MICROSCOPY

Sample
Isoaspartyl Dipeptidase

Specimen Preparation
Sample Aggregation State	FILAMENT
Vitrification Instrument	LEICA EM GP
Cryogen Name	ETHANE
Sample Vitrification Details

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	17277
Reported Resolution (Å)	10.5
Resolution Method	FSC 0.143 CUT-OFF
Other Details	2 CLASSES WERE MERGED IN THE FINAL RECONSTRUCTION
Refinement Type
Symmetry Type	POINT
Point Symmetry	D4

Map-Model Fitting and Refinement
Id	1
Refinement Space
Refinement Protocol	RIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details

Data Acquisition
Detector Type	GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)	32

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI TECNAI 20
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	200
Imaging Details

EM Software
Task	Software Package	Version
PARTICLE SELECTION	EMAN	2.1
IMAGE ACQUISITION	RELION	1.4
IMAGE ACQUISITION	EMAN	2.1
CTF CORRECTION	CTFFIND	3.0
MODEL FITTING	UCSF Chimera	1.10.2
INITIAL EULER ASSIGNMENT	RELION	1.4
FINAL EULER ASSIGNMENT	RELION	1.4
CLASSIFICATION	RELION	1.4
RECONSTRUCTION	RELION	1.4

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION		38786	Particles were manually selected from filaments only

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 R01GM133198.