7TX3

Neutron crystal structure of SARS-CoV-2 NSP3 macrodomain at 293 K (P43 crystal form)

X-RAY DIFFRACTION - NEUTRON DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	7KQO

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	9.5	293	100 mM CHES pH 9.5, 34% PEG 3000

Crystal Properties
Matthews coefficient	Solvent content
2.21	44.44

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 89.328	α = 90
b = 89.328	β = 90
c = 40.349	γ = 90

Symmetry
Space Group	P 43

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	293	PIXEL	DECTRIS EIGER R 4M	OSMIC VARIMAX	2021-03-29	M	SINGLE WAVELENGTH
2	1	neutron	293	AREA DETECTOR	ORNL ANGER CAMERA	COLLIMATORS	2021-03-15	L	LAUE

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.54
2	SPALLATION SOURCE	ORNL Spallation Neutron Source BEAMLINE MANDI	2.00-4.00	ORNL Spallation Neutron Source	MANDI

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)	R Split (All)	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	1.6	28.39	99.6	0.087			0.038	0.996		15.6	5.9		42240
2	1.89	14.12	94	0.217			0.101	0.926		7.2	4.4		24142

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	R Split (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.6	1.63		0.265				0.874		4.6	2.8
2	1.89	1.96		0.2524				0.411		2.7	3.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	1.6	23.14				42212	2042	99.63			0.1239	0.1576	RANDOM	22.64
NEUTRON DIFFRACTION	MOLECULAR REPLACEMENT	1.89	14.12				24141	1173	94.01			0.2258	0.275	RANDOM	22.64

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	20.8052
f_dihedral_angle_d	20.8052
f_angle_d	1.474
f_angle_d	1.474
f_chiral_restr	0.0809
f_chiral_restr	0.0809
f_bond_d	0.0119
f_bond_d	0.0119
f_plane_restr	0.0092
f_plane_restr	0.0092

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2535
Nucleic Acid Atoms
Solvent Atoms	322
Heterogen Atoms	13

Software

Software
Software Name	Purpose
PHENIX	refinement
Mantid	data reduction
LAUENORM	data scaling
PHASER	phasing
Coot	model building

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.