8FIW

Crystal structure of the SARS-CoV-2 (COVID-19) main protease in complex with inhibitor Jun10221

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		293	25% PEG 3350, 0.2 M AmSO4, 0.1 M HEPES 7.5

Crystal Properties
Matthews coefficient	Solvent content
2	38.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 45.16	α = 90
b = 53.355	β = 100.67
c = 114.462	γ = 90

Symmetry
Space Group	P 1 21 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		2022-11-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97918	APS	19-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	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	2.55	50	92.8	0.962	6.7	2.2		32064

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.55	2.59	94		0.64		2

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	2.54	48.25	16373	827	96.04	0.22029	0.21816	0.26267	RANDOM	52.893

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]
0.03		0.06	-0.45		0.38

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.631
r_dihedral_angle_4_deg	17.864
r_dihedral_angle_3_deg	15.942
r_long_range_B_refined	8.687
r_long_range_B_other	8.686
r_dihedral_angle_1_deg	7.382
r_mcangle_it	6.238
r_mcangle_other	6.237
r_scangle_other	6.066
r_mcbond_it	4.107
r_mcbond_other	4.101
r_scbond_it	4.006
r_scbond_other	4.006
r_angle_refined_deg	1.43
r_angle_other_deg	1.153
r_chiral_restr	0.054
r_bond_refined_d	0.006
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4644
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	70

Software

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