8AIQ

Mpro of SARS COV-2 in complex with the MG-87 inhibitor

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	293	0.02 M sodium/potassium phosphate, 0.1 M Bis Tris propane pH8.5, 20 % w/v PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
2.24	45.11

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 45.941	α = 90
b = 63.773	β = 91.251
c = 103.513	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 EIGER X 16M		2021-11-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PETRA III, DESY BEAMLINE P11	1.0332	PETRA III, DESY	P11

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	2.19	45.972	98.6	0.133	0.996	10.9	6.9		30543

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.19	2.26			0.852

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	6y2e	2.19	45.972	30543	1411	98.58	0.171	0.1682	0.2229	26.244

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]
-0.102		-0.066	0.04		0.065

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.83
r_dihedral_angle_4_deg	17.138
r_dihedral_angle_3_deg	15.764
r_dihedral_angle_1_deg	7.968
r_dihedral_angle_other_3_deg	6.333
r_lrange_it	6.15
r_lrange_other	6.145
r_scangle_it	4.473
r_scangle_other	4.472
r_mcangle_other	3.271
r_mcangle_it	3.269
r_scbond_it	2.799
r_scbond_other	2.799
r_mcbond_it	2.114
r_mcbond_other	2.105
r_angle_refined_deg	1.579
r_angle_other_deg	1.298
r_symmetry_nbd_refined	0.219
r_nbd_other	0.21
r_nbd_refined	0.193
r_symmetry_xyhbond_nbd_refined	0.183
r_symmetry_nbd_other	0.18
r_nbtor_refined	0.166
r_xyhbond_nbd_refined	0.152
r_symmetry_nbtor_other	0.077
r_chiral_restr	0.073
r_symmetry_xyhbond_nbd_other	0.021
r_bond_refined_d	0.009
r_gen_planes_refined	0.008
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4734
Nucleic Acid Atoms
Solvent Atoms	183
Heterogen Atoms	73

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
REFMAC	phasing