7LV2

GSQASS segment from the Nucleoprotein of SARS-CoV-2, residues 179-184

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
in silico model	Other		ideal beta strand AAAAAA

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	298	sodium potassium tartrate, lithium sulfate, TRIS, pH 7.0

Crystal Properties
Matthews coefficient	Solvent content
1.29	4.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 4.77	α = 90
b = 13.6	β = 90
c = 42.44	γ = 90

Symmetry
Space Group	P 21 21 21

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		2020-06-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 24-ID-E	0.9792	APS	24-ID-E

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim 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	1.3	12.951	93.2	0.126	0.161	0.997	3.47	2.266		809			15.771

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.3	1.39	95.9		1.045	1.306	0.567	0.69	2.432

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	THROUGHOUT	ideal beta strand AAAAAA	1.301	12.951	798	79	94.438	0.248	0.2488	0.242	10.668

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]
-1.126			1.716		-0.59

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.435
r_dihedral_angle_3_deg	11.137
r_angle_other_deg	6.804
r_dihedral_angle_1_deg	4.301
r_scangle_it	3.762
r_lrange_other	3.631
r_lrange_it	3.378
r_scangle_other	3.361
r_mcangle_other	2.48
r_mcangle_it	2.388
r_scbond_it	2.371
r_angle_refined_deg	1.751
r_scbond_other	1.676
r_mcbond_it	1.662
r_mcbond_other	1.411
r_nbd_other	0.236
r_symmetry_nbd_other	0.22
r_symmetry_xyhbond_nbd_refined	0.201
r_symmetry_nbtor_other	0.176
r_nbtor_refined	0.133
r_chiral_restr	0.129
r_symmetry_nbd_refined	0.111
r_nbd_refined	0.058
r_xyhbond_nbd_refined	0.037
r_bond_other_d	0.035
r_bond_refined_d	0.017
r_gen_planes_refined	0.009
r_gen_planes_other	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	37
Nucleic Acid Atoms
Solvent Atoms	3
Heterogen Atoms

Software

Software
Software Name	Purpose
XDS	data reduction
XSCALE	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction