4ONX | pdb_00004onx

2.8 Angstrom Crystal Structure of Sensor Domain of Histidine Kinase from Clostridium perfringens.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.3	295	Protein: 7.5 mG/mL, 0.25 M Sodium chloride, 0.01 M Tris-HCL buffer pH 8.3; Screen: Trap96 (B9), 0.2M Ammonium sulfate, 4% (w/v) Sugar; Cryo: 1:1, screen : 50% Sucrose., VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
1.9	35.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 73.903	α = 90
b = 82.739	β = 105.92
c = 73.954	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	MARMOSAIC 300 mm CCD	Beryllium lenses	2012-07-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-G	0.97856	APS	21-ID-G

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.8	30	100	0.077	0.077	31.7	5.1	21394	21394		-3	82.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.8	2.85	100		0.612	0.612	2.7	5.1	1090

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	2.8	29.51	20178	20178	1088	99.88	0.19993	0.19993	0.19726	0.2014	0.24984	0.2536	RANDOM	95.512

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]
-0.83		1.67	-0.25		0.52

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	22.553
r_dihedral_angle_4_deg	18.774
r_long_range_B_refined	11.238
r_long_range_B_other	11.237
r_dihedral_angle_3_deg	11.194
r_scangle_other	7.874
r_mcangle_it	5.998
r_mcangle_other	5.998
r_scbond_it	5.601
r_scbond_other	5.459
r_mcbond_other	3.925
r_mcbond_it	3.924
r_dihedral_angle_1_deg	2.346
r_angle_refined_deg	1.506
r_angle_other_deg	1.179
r_chiral_restr	0.092
r_bond_refined_d	0.009
r_bond_other_d	0.005
r_gen_planes_refined	0.005
r_gen_planes_other	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6231
Nucleic Acid Atoms
Solvent Atoms	42
Heterogen Atoms	31

Software

Software
Software Name	Purpose
Blu-Ice	data collection
PHENIX	model building
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling
PHENIX	phasing