8D4P

Crystal structure of the SARS-CoV-2 (COVID-19) main protease in complex with inhibitor Jun10-90-3-C1

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6XBH

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		293	25% PEG 3350, 0.1M KNa Tartrate, 0.005 M MgCl2

Crystal Properties
Matthews coefficient	Solvent content
2	38.55

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 114.643	α = 90
b = 53.607	β = 101.86
c = 45.029	γ = 90

Symmetry
Space Group	C 1 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 PILATUS3 6M		2022-03-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.99	APS	19-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	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	2.04	50	99	0.079	0.989	20.66	4		16918

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.04	2.08			0.393	0.222	0.869	2.15

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	6xbh	2.04	48.42	16061	857	98.72	0.1925	0.189	0.2566	RANDOM	40.878

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]
-1.08		-1.87	1.13		0.68

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.737
r_dihedral_angle_4_deg	18.329
r_dihedral_angle_3_deg	14.913
r_dihedral_angle_1_deg	7.922
r_angle_refined_deg	1.501
r_angle_other_deg	1.322
r_chiral_restr	0.073
r_bond_refined_d	0.008
r_gen_planes_refined	0.007
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.737
r_dihedral_angle_4_deg	18.329
r_dihedral_angle_3_deg	14.913
r_dihedral_angle_1_deg	7.922
r_angle_refined_deg	1.501
r_angle_other_deg	1.322
r_chiral_restr	0.073
r_bond_refined_d	0.008
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2351
Nucleic Acid Atoms
Solvent Atoms	91
Heterogen Atoms	36

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 R01GM157729.