8EUN

MicroED structure of an Aeropyrum pernix protoglobin metallo-carbene complex

ELECTRON CRYSTALLOGRAPHY

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.117	α = 90
b = 45.761	β = 105.72
c = 72.632	γ = 90

Symmetry
Space Group	P 1 21 1

Data Collection

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	R-Free Selection Details	Mean Isotropic B
ELECTRON CRYSTALLOGRAPHY		FREE R-VALUE	2.5	24.37	1.34	9122	888	70.36	0.2378	0.2327	0.2839	0.1	20.59

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	9.7835
f_angle_d	0.8766
f_chiral_restr	0.0484
f_plane_restr	0.005
f_bond_d	0.0047

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3104
Nucleic Acid Atoms
Solvent Atoms	64
Heterogen Atoms	100

Software

Software
Software Name	Purpose
phenix.refine	refinement
PHENIX	refinement

Sample
Homodimer of Aeropyrum pernix protoglobin (ApePgb) C45G, W59L, Y60V, V63R, C102S, F145Q, I149L mutant

Specimen Preparation
Sample Aggregation State	3D ARRAY
Vitrification Instrument	LEICA EM GP
Cryogen Name	ETHANE
Sample Vitrification Details

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	58.15
Length b	45.89
Length c	45.89
Angle Alpha	90
Angle Beta	105.42
Angle Gamma	90

Map-Model Fitting and Refinement
Id	1
Refinement Space	RECIPROCAL
Refinement Protocol	OTHER
Refinement Target	maximum likelihood
Overall B Value	20.59
Fitting Procedure
Details

Data Acquisition
Detector Type	FEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å**2)	0.00025

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS	2.7
Imaging Mode	DIFFRACTION
Specimen Holder Model	FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

EM Software
Task	Software Package	Version
RECONSTRUCTION	PHENIX	1.20.1-4487-000

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.