1CD3

PROCAPSID OF BACTERIOPHAGE PHIX174

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6		PROCAPSIDS WERE CRYSTALLIZED BY VAPOUR DIFFUSION FROM 43-37% (OF SATURATION) AMMONIUM SULFATE, 100MM MES PH6.0, VAPOR DIFFUSION

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 774	α = 90
b = 774	β = 90
c = 774	γ = 90

Symmetry
Space Group	I 21 3

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	277	IMAGE PLATE	FUJI	MIRRORS	1997-02-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE F1		CHESS	F1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	3.5	45	67.14	0.217	0.217		2.69		632194		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	3.5	3.63	27.3			2.11

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 1PHX	3.5	8	2	564313		67.2	0.275		24.7

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
x_dihedral_angle_d	28.31
x_scangle_it	2.5
x_mcangle_it	2
x_scbond_it	2
x_angle_deg	1.95
x_mcbond_it	1.5
x_improper_angle_d	1.09
x_bond_d	0.016
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9755
Nucleic Acid Atoms
Solvent Atoms	96
Heterogen Atoms

Software

Software
Software Name	Purpose
MGR	model building
X-PLOR	refinement
DENZO	data reduction
SnB	phasing
MGR	phasing