2R78

Crystal structure of a domain of the sensory box sensor histidine kinase/response regulator from Geobacter sulfurreducens

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	289	0.2M Ammonium acetate, 0.1M Bis-Tris, 25% PEG 3350, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
2.21	44.23

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.248	α = 90
b = 62.501	β = 94.82
c = 71.203	γ = 90

Symmetry
Space Group	P 1 21 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	SBC-2	mirrors	2007-08-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	0.97940	APS	19-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	1.6	70.89	99.51	0.069	31.36	8.6	55965	55938		2	17.65

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)
	1.6	1.642	95.59		0.508	1.73	6.4	4330

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	1.6	70.89	55938	55938	2979	99.51	0.1812	0.1812	0.17906	0.22098	RANDOM	17.515

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]
0.23		0.44	-0.56		0.41

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.957
r_dihedral_angle_4_deg	13.758
r_dihedral_angle_3_deg	12.231
r_sphericity_free	6.596
r_dihedral_angle_1_deg	5.814
r_scangle_it	4.014
r_scbond_it	2.819
r_sphericity_bonded	2.801
r_mcangle_it	1.966
r_rigid_bond_restr	1.782
r_mcbond_it	1.599
r_angle_refined_deg	1.5
r_angle_other_deg	0.929
r_mcbond_other	0.515
r_symmetry_vdw_other	0.308
r_nbd_refined	0.23
r_nbd_other	0.205
r_nbtor_refined	0.183
r_xyhbond_nbd_refined	0.173
r_symmetry_hbond_refined	0.167
r_symmetry_vdw_refined	0.161
r_chiral_restr	0.09
r_nbtor_other	0.087
r_bond_refined_d	0.014
r_xyhbond_nbd_other	0.007
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3565
Nucleic Acid Atoms
Solvent Atoms	483
Heterogen Atoms	40

Software

Software
Software Name	Purpose
REFMAC	refinement
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	data scaling
HKL-3000	phasing