1NNX

Structure of the hypothetical protein ygiW from E. coli.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		2.4	294	1.25 M (NH4)2SO4, 0.1 M Na acetate, pH 2.4, VAPOR DIFFUSION, HANGING DROP, temperature 294K, pH 2.40

Crystal Properties
Matthews coefficient	Solvent content
1.89	35.68

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.802	α = 90
b = 60.638	β = 90
c = 54.888	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	173	CCD	MARRESEARCH	MIRROR	2002-12-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 17-BM		APS	17-BM

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	1.45	27.4	92.5	0.048	17.73	0.93		15321			18

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)
	1.45	1.5	77.4		0.334	2.07	0.77

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	SAD	THROUGHOUT	1.45	9.94	14208	14682	1030	89	0.196	0.196	0.251	RANDOM	25.8

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]
-4.79			3.44		1.34

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
12		854.5

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	26.3
c_scangle_it	6.51
c_scbond_it	4.65
c_mcangle_it	3.69
c_angle_deg	2.5
c_mcbond_it	2.5
c_improper_angle_d	2.16
c_bond_d	0.023
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	780
Nucleic Acid Atoms
Solvent Atoms	125
Heterogen Atoms	5

Software

Software
Software Name	Purpose
CNS	refinement
SHELXL-97	refinement
HKL-2000	data reduction
HKL-2000	data scaling
SOLVE	phasing
SHELX	model building