3CUO

Crystal structure of the predicted DNA-binding transcriptional regulator from E. coli

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		298	4M Na Formate, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.06	40.28

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.994	α = 95.93
b = 39.632	β = 95.78
c = 56.279	γ = 97.41

Symmetry
Space Group	P 1

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 315	Mirrors	2006-11-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97940	APS	19-ID

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	2	55.64	90.42	0.093	13.06	4.9	21704	19625		2	42

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	2	2.05	67.52		0.261	3	3.7	1678

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	2	30.53	19625	19625	1041	90.42	0.23051	0.23051	0.2274	0.28875	RANDOM	42.075

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]
-0.41	-3.06	-2.25	0.64	1.3	-1.21

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.21
r_dihedral_angle_4_deg	20.944
r_dihedral_angle_3_deg	18.634
r_dihedral_angle_1_deg	7.448
r_scangle_it	4.664
r_scbond_it	3.442
r_mcangle_it	1.874
r_angle_refined_deg	1.849
r_mcbond_it	1.53
r_angle_other_deg	1.103
r_symmetry_hbond_refined	0.511
r_mcbond_other	0.274
r_symmetry_vdw_other	0.273
r_nbd_refined	0.241
r_nbd_other	0.202
r_xyhbond_nbd_refined	0.189
r_nbtor_refined	0.179
r_symmetry_vdw_refined	0.177
r_chiral_restr	0.113
r_nbtor_other	0.095
r_xyhbond_nbd_other	0.085
r_bond_refined_d	0.021
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2866
Nucleic Acid Atoms
Solvent Atoms	48
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
SBC-Collect	data collection
HKL-2000	data reduction
HKL-2000	data scaling