3A0S | pdb_00003a0s

PAS domain of histidine kinase ThkA (TM1359)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3A0V

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION		293	50% PEG200, 0.1M sodium/potassium-phosphate pH 6.2, 0.2M sodium chloride, VAPOR DIFFUSION, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.47	50.12

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.784	α = 90
b = 43.784	β = 90
c = 115.448	γ = 90

Symmetry
Space Group	P 41 21 2

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 210		2007-06-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL44B2	1.0	SPring-8	BL44B2

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	1.47	30	98.7	0.047	41.5	18.2		19750		-3	20.2

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	1.47	1.52	88.9		0.334	3.5	6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	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	MOLECULAR REPLACEMENT	THROUGHOUT	3A0V	1.47	20	19680	967	98.73	0.211	0.21	0.2068	0.234	0.2313	RANDOM	27.384

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]
0.57			0.57		-1.14

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.907
r_dihedral_angle_4_deg	17.113
r_dihedral_angle_3_deg	14.52
r_dihedral_angle_1_deg	6.024
r_scangle_it	3.955
r_scbond_it	2.691
r_mcangle_it	1.593
r_angle_refined_deg	1.522
r_mcbond_it	1.055
r_nbtor_refined	0.31
r_nbd_refined	0.229
r_symmetry_vdw_refined	0.197
r_xyhbond_nbd_refined	0.143
r_symmetry_hbond_refined	0.116
r_chiral_restr	0.106
r_bond_refined_d	0.012
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	793
Nucleic Acid Atoms
Solvent Atoms	50
Heterogen Atoms	69

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
ADSC	data collection
HKL-2000	data reduction
HKL-2000	data scaling
REFMAC	phasing