4OQ8

Satellite Tobacco Mosaic Virus Refined to 1.4 A Resolution using icosahedral constraints

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	296	crystals grown from 15% ammonium sulfate on earth with a reservoir of 15% ammonium sulfate over 14 days., pH 6.50, VAPOR DIFFUSION, SITTING DROP, temperature 296K

Crystal Properties
Matthews coefficient	Solvent content
2.31	46.86

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 172.69	α = 90
b = 190.3	β = 90
c = 201.69	γ = 90

Symmetry
Space Group	I 2 2 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	CCD	ADSC QUANTUM 315		2003-10-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.2	1.06	ALS	8.2.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	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	1.4	48.35	95.4	0.1	11.6	7.23	643001	613720			19.4

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.4	1.45	67.3		0.354	2.9	2.17	43070

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	THOUGHOUT	PDB entry 1A34	1.45	48.35	570721	570721	28359	98.5	0.2784	0.2784	0.2776	0.2793	RANDOM	39.23

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]
-2.08			2.396		-0.316

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
88

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	17.992
c_scangle_it	10.12
c_scbond_it	7.79
c_mcangle_it	1.81
c_improper_angle_d	1.401
c_angle_deg	1.28
c_mcbond_it	1.18
c_bond_d	0.0068

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1118
Nucleic Acid Atoms	448
Solvent Atoms	277
Heterogen Atoms	16

Software

Software
Software Name	Purpose
ADSC	data collection
Coot	model building
CNS	refinement
d*TREK	data reduction
d*TREK	data scaling
CNS	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.