7ZQW

Structure of the SARS-CoV-1 main protease in complex with AG7404

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1UJ1

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	293	Lithium Sulfate Monohydrate, HEPES, PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
1.91	35.59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 106.854	α = 90
b = 45.22	β = 90
c = 53.55	γ = 90

Symmetry
Space Group	P 21 21 2

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 PILATUS 6M		2021-10-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALBA BEAMLINE XALOC	0.97918	ALBA	XALOC

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	2.53	53.55	91.9	0.998	10.1	4.2		7634

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	2.53	2.69			0.431

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	1UJ1	2.53	53.55	7265	369	83.13	0.21884	0.21543	0.28914	RANDOM	65.935

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]
-0.6			-0.04		0.64

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.304
r_dihedral_angle_3_deg	20.054
r_dihedral_angle_4_deg	18.05
r_long_range_B_refined	12.063
r_long_range_B_other	12.063
r_scangle_other	7.744
r_mcangle_it	7.386
r_mcangle_other	7.381
r_dihedral_angle_1_deg	7.345
r_scbond_it	4.728
r_scbond_other	4.726
r_mcbond_it	4.678
r_mcbond_other	4.669
r_angle_refined_deg	1.526
r_angle_other_deg	1.325
r_chiral_restr	0.066
r_bond_refined_d	0.006
r_gen_planes_refined	0.006
r_bond_other_d	0.003
r_gen_planes_other	0.002
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	2336
Nucleic Acid Atoms
Solvent Atoms	1
Heterogen Atoms	38

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
STARANISO	data scaling
PHASER	phasing