8F4Y

Crystal Structure of SARS-CoV-2 2'-O-Methyltransferase in Complex with Compound 5a covalently bound to nsp16 and nsp10

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	292	Protein: 3.83 mg/ml (nsp10/nsp16 1:1), 0.15M Sodium chloride, 0.01M Tris pH 7.5 , 5% Glycerol; Screen: Anions (B2), 0.1M HEPES pH 7.5, 1.25M Sodium acetate; Soaks: Compound 5a, 24 hours; Cryo: 4M Sodium formate

Crystal Properties
Matthews coefficient	Solvent content
4.4	72

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 171.04	α = 90
b = 171.04	β = 90
c = 52.029	γ = 120

Symmetry
Space Group	P 31 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 EIGER X 9M		2021-06-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-D	1.12713	APS	21-ID-D

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	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	2.13	30	99.9	0.104	0.104	0.113	0.043	0.993	17.5	6.9		49128		-3	42.2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.13	2.17	100		0.426	0.718	2	7.1

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	6w4h	2.13	29.62	46521	2374	99.89	0.1584	0.1573	0.1798	RANDOM	52.305

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]
0.42	0.21		0.42		-1.36

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	8.422
r_dihedral_angle_2_deg	4.294
r_dihedral_angle_1_deg	3.421
r_angle_other_deg	2.486
r_angle_refined_deg	1.164
r_chiral_restr	0.056
r_gen_planes_other	0.019
r_gen_planes_refined	0.008
r_bond_refined_d	0.004
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3152
Nucleic Acid Atoms
Solvent Atoms	327
Heterogen Atoms	118

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-3000	data reduction
HKL-3000	data scaling
PHASER	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.