Experiment: 1RB8

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		Bacteriophage alpha3 wild-type structure

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5	298	4-7% PEG 8000, 100 mM sodium citrate pH 5.0, 40% glycerol, 0.02% sodium azide, 0.1% beta-mercapto-ethanol, 0.9M NaCl, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 295.143	α = 90
b = 295.143	β = 90
c = 678.235	γ = 120

Symmetry
Space Group	H 3

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 4		2001-05-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-C	1.0	APS	14-BM-C

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	3.5	500	96.9	0.097			342669	269234		2	1

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)
	3.5	3.66	94.4		0.157

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	THROUGHOUT	Bacteriophage alpha3 wild-type structure	3.5	92.91	342669	269234	13533	96.9	0.234	0.234	0.234	0.236	RANDOM	22.3

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]
-3.28	4.11		-3.28		6.55

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	25.3
c_angle_deg	1.5
c_improper_angle_d	0.95
c_bond_d	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4992
Nucleic Acid Atoms	120
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
CNS	refinement
DENZO	data reduction
SnB	phasing
ENVELOPE	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.