5N2N

Crystal structure of the receiver domain of the histidine kinase CKI1 from Arabidopsis thaliana complexed with Mg2+ and BeF3-

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.05	289	2.54 M (NH4)2(SO4), 0.1 M MES pH 5.05, 12% glycerol

Crystal Properties
Matthews coefficient	Solvent content
2.29	46.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.85	α = 90
b = 100.152	β = 90
c = 80.139	γ = 90

Symmetry
Space Group	C 2 2 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	PSI PILATUS 6M		2014-05-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.1	0.9184	BESSY	14.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	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	2.05	46.74	99.9	0.05	1	20.5	6.5		13705

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.05	2.16	99.9		0.47	0.945	4.1	6.8

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3MM4	2.05	42.47	13028	658	99.91	0.18378	0.18175	0.22515	RANDOM	46.22

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]
3.23			-0.15		-3.08

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.178
r_dihedral_angle_4_deg	22.273
r_dihedral_angle_3_deg	16.178
r_long_range_B_other	11.301
r_long_range_B_refined	11.288
r_scangle_other	9.337
r_scbond_other	6.22
r_scbond_it	6.212
r_dihedral_angle_1_deg	6.029
r_mcangle_it	5.479
r_mcangle_other	5.478
r_mcbond_it	4.159
r_mcbond_other	4.15
r_angle_refined_deg	1.85
r_angle_other_deg	1.02
r_chiral_restr	0.158
r_bond_refined_d	0.019
r_gen_planes_refined	0.009
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1160
Nucleic Acid Atoms
Solvent Atoms	53
Heterogen Atoms	5

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
SCALA	data scaling
MOLREP	phasing