7DI8

Electron crystallographic structure of Catalase using a direct electron detector at 300 kV

ELECTRON CRYSTALLOGRAPHY

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	BATCH MODE	5.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69.98	α = 90
b = 174.02	β = 90
c = 199.45	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	electron					2020-08-26	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1			0.0197

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	3	131.126	82.3	1.159	1.173	0.688	3.79	43.552		40941			8.65

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	3	3.18	82.7		1.786	1.808	0.185	1.9	42.194

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
ELECTRON CRYSTALLOGRAPHY		THROUGHOUT	3.2	131.126	1.35	33768	1651	82.15	0.3109	0.3089	0.3482	16.7903

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	15.158
f_angle_d	0.731
f_chiral_restr	0.045
f_plane_restr	0.005
f_bond_d	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	588

Software

Software
Software Name	Purpose
PHENIX	refinement
XSCALE	data scaling
PDB_EXTRACT	data extraction

Sample
Catalase

Specimen Preparation
Sample Aggregation State	TISSUE

3D Reconstruction
Reconstruction Method	CRYSTALLOGRAPHY
Number of Particles
Reported Resolution (Å)
Resolution Method	DIFFRACTION PATTERN/LAYERLINES
Other Details
Refinement Type
Symmetry Type	3D CRYSTAL
Space Group Name
Length a	70
Length b	174.2
Length c	174.2
Angle Alpha	90
Angle Beta	90
Angle Gamma	90

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

Data Acquisition
Detector Type	DIRECT ELECTRON DE-64 (8k x 8k)
Electron Dose (electrons/Å**2)	0.0025

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	JEOL CRYO ARM 300
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging Mode	DIFFRACTION
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
NONE

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.