2B0L

C-terminal DNA binding domain of transcriptional pleiotropic repressor CodY.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	291	ammoium sulphate, sodium citrate, NaCl, glycerol, tacsimate, TRIS, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.9	56.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 68.128	α = 90
b = 68.128	β = 90
c = 164.903	γ = 90

Symmetry
Space Group	P 4 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	298	IMAGE PLATE	MARRESEARCH	Blue Osmics	2005-08-12	M	SINGLE WAVELENGTH
2	1	x-ray	100	CCD	ADSC QUANTUM 315r		2005-02-12	M	MAD
1,2	1

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.54178
2	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.978, 0.975, 0.978	ESRF	ID23-1

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	2.9	25	94.4	0.072	15.4	3.7	8705	8705

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	2.9	2.974	84.3		0.655	1.2	2.4	758

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	MAD	THROUGHOUT	2.9	10	8018	8018	393	100	0.20445	0.20445	0.20215	0.25033	RANDOM	74.163

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]
-0.22			-0.22		0.44

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.888
r_dihedral_angle_3_deg	23.582
r_dihedral_angle_4_deg	17.915
r_scangle_it	9.24
r_dihedral_angle_1_deg	7.702
r_scbond_it	6.356
r_mcangle_it	5.127
r_mcbond_it	3.262
r_angle_refined_deg	1.544
r_nbtor_refined	0.31
r_symmetry_vdw_refined	0.302
r_nbd_refined	0.268
r_xyhbond_nbd_refined	0.182
r_symmetry_hbond_refined	0.159
r_chiral_restr	0.103
r_bond_refined_d	0.011
r_gen_planes_refined	0.005
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2234
Nucleic Acid Atoms
Solvent Atoms	19
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
HKL2Map	phasing