8UFM

Crystal Structure of L516C/Y647C Mutant of SARS-Unique Domain (SUD) from SARS-CoV-2

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.3	292	Protein: 6.45 mg/ml, 0.3M Sodium chloride, 0.01M Tris pH 8.3; Screen: AmSO4 (A2), 0.2M Ammonium acetate, 2.2M Ammonium sulfate; Cryo: 2.0M Lithium sulfate

Crystal Properties
Matthews coefficient	Solvent content
2.72	54.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.274	α = 90
b = 86.274	β = 90
c = 76.674	γ = 120

Symmetry
Space Group	P 31 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS EIGER X 9M		2021-01-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-D	1.12704	APS	21-ID-D

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim 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	1.65	30	99.9	0.1	0.1	0.102	0.024	1	30.1	18.8		40007		-3	26.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.65	1.68	99.7		0.437	0.772	2	14.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1.65	28.26	37981	1997	99.81	0.186	0.1848	0.2079	RANDOM	37.172

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]
1.61	0.8		1.61		-5.22

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.193
r_dihedral_angle_4_deg	13.442
r_dihedral_angle_3_deg	8.384
r_dihedral_angle_1_deg	4.168
r_angle_refined_deg	1.454
r_angle_other_deg	0.343
r_chiral_restr	0.058
r_gen_planes_refined	0.055
r_gen_planes_other	0.051
r_bond_refined_d	0.006

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.193
r_dihedral_angle_4_deg	13.442
r_dihedral_angle_3_deg	8.384
r_dihedral_angle_1_deg	4.168
r_angle_refined_deg	1.454
r_angle_other_deg	0.343
r_chiral_restr	0.058
r_gen_planes_refined	0.055
r_gen_planes_other	0.051
r_bond_refined_d	0.006
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1921
Nucleic Acid Atoms
Solvent Atoms	215
Heterogen Atoms	42

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-3000	data reduction
HKL-3000	data scaling
MOLREP	phasing

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.