8AJ0

Mpro of SARS COV-2 in complex with the RK-90 inhibitor

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	293	0.1MMES pH 6, 0.2MSodium chloride, 20% w/vPEG 6000, 10% v/vEthylene glycol

Crystal Properties
Matthews coefficient	Solvent content
2.07	40.49

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 45.253	α = 90
b = 54.376	β = 101.38
c = 114.192	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		2022-05-28	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)	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	2.519	48.959	98.6	0.988	6.4	4.9		18391

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	2.52	2.61			0.599

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	2.519	48.959	18391	950	98.654	0.19	0.1856	0.2661	30.904

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]
-0.181		-0.062	0.271		-0.061

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.589
r_dihedral_angle_3_deg	17.825
r_dihedral_angle_4_deg	17.28
r_dihedral_angle_1_deg	8.262
r_lrange_it	6.135
r_lrange_other	6.135
r_scangle_it	4.259
r_scangle_other	4.258
r_mcangle_it	3.611
r_mcangle_other	3.61
r_scbond_it	2.714
r_scbond_other	2.713
r_dihedral_angle_other_3_deg	2.436
r_mcbond_it	2.305
r_mcbond_other	2.305
r_angle_refined_deg	1.671
r_angle_other_deg	1.28
r_metal_ion_refined	1.048
r_symmetry_nbd_refined	0.218
r_nbd_refined	0.215
r_symmetry_nbd_other	0.188
r_nbd_other	0.181
r_nbtor_refined	0.174
r_symmetry_xyhbond_nbd_refined	0.157
r_xyhbond_nbd_refined	0.148
r_symmetry_nbtor_other	0.078
r_chiral_restr	0.073
r_symmetry_xyhbond_nbd_other	0.046
r_bond_refined_d	0.008
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4662
Nucleic Acid Atoms
Solvent Atoms	72
Heterogen Atoms	82

Software

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