Experiment: 3CSS

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7.5	298	40% PEG 400, 0.1 M Sodium acetate, 0.1 M NH4H2PO4 pH 5.0, pH 7.5, VAPOR DIFFUSION, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.74	55.11

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69.999	α = 90
b = 89.381	β = 90
c = 100.521	γ = 90

Symmetry
Space Group	C 2 2 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	CCD	MARMOSAIC 325 mm CCD		2007-08-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.9184	SSRL	BL9-2

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	1.7	50	95.8	0.04	14.9	7		33580

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	1.7	1.76	72.9		0.409		4.4	2503

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	PDB entry 3CH7	1.7	40	33570	1693	95.78	0.17	0.169	0.185	RANDOM	17.359

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]
-1.14			1.84		-0.7

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.85
r_dihedral_angle_3_deg	13.148
r_dihedral_angle_4_deg	12.915
r_dihedral_angle_1_deg	6.08
r_scangle_it	2.765
r_scbond_it	1.74
r_angle_refined_deg	1.3
r_mcangle_it	1.095
r_angle_other_deg	0.896
r_mcbond_it	0.615

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.85
r_dihedral_angle_3_deg	13.148
r_dihedral_angle_4_deg	12.915
r_dihedral_angle_1_deg	6.08
r_scangle_it	2.765
r_scbond_it	1.74
r_angle_refined_deg	1.3
r_mcangle_it	1.095
r_angle_other_deg	0.896
r_mcbond_it	0.615
r_mcbond_other	0.163
r_chiral_restr	0.072
r_bond_refined_d	0.012
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1991
Nucleic Acid Atoms
Solvent Atoms	202
Heterogen Atoms	5

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
MAR345	data collection
REFMAC	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 R01GM133198.