Experiment: 1XRU

Crystal Structure of 5-keto-4-deoxyuronate Isomerase from Eschericia coli

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7	277	PEG 400, calcium chloride, HEPES, pH 7, VAPOR DIFFUSION, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.9	56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 102.972	α = 90
b = 102.972	β = 90
c = 176.862	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		2002-04-15	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X8C	0.980122, 0.979634, 0.979538	NSLS	X8C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.94	50	99.9	0.07	9	4.5	51624	51573	2	1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.94	2.01	99.3		0.2	4.8	4.5	5124

Refinement

Statistics
Diffraction ID	Structure Solution Method	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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	1.94	12.97	51768	51449	2562	99.4	0.165	0.165	0.164	0.1671	0.191	0.1608	RANDOM	16.6

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]
0.21	0.61		0.21		-0.4

RMS Deviations
Key	Refinement Restraint Deviation
c_angle_deg	1.3
c_bond_d	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4374
Nucleic Acid Atoms
Solvent Atoms	457
Heterogen Atoms	34

Software

Software
Software Name	Purpose
HKL-2000	data collection
SCALEPACK	data scaling
SHARP	phasing
CNS	refinement
HKL-2000	data reduction