5LNN

Crystal structure of D1050A mutant of the receiver domain of the histidine kinase CKI1 from Arabidopsis thaliana

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.05	290.15	2.54 M (NH4)2(SO4), 0.1 M MES pH 5.05

Crystal Properties
Matthews coefficient	Solvent content
2.43	49.45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.176	α = 90
b = 101.005	β = 90
c = 79.464	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	CCD	MARMOSAIC 225 mm CCD		2009-11-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X12	0.975220	EMBL/DESY, HAMBURG	X12

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	47.05	98.9	0.023	37.9	6.4		28315

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	1.6	1.69	95.3		0.175	5.4	3.6

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3MM4	1.6	42.51	26733	1423	98.38	0.19418	0.1924	0.22806	RANDOM	32.103

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]
2.24			-0.52		-1.72

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.18
r_dihedral_angle_3_deg	15.82
r_dihedral_angle_4_deg	13.859
r_long_range_B_refined	8.645
r_long_range_B_other	8.503
r_scangle_other	7.513
r_dihedral_angle_1_deg	5.939
r_scbond_it	5.099
r_scbond_other	5.095
r_mcangle_it	4.224
r_mcangle_other	4.222
r_mcbond_it	3.129
r_mcbond_other	3.117
r_angle_refined_deg	2.377
r_angle_other_deg	1.134
r_chiral_restr	0.148
r_bond_refined_d	0.026
r_gen_planes_refined	0.013
r_bond_other_d	0.002
r_gen_planes_other	0.002
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	1162
Nucleic Acid Atoms
Solvent Atoms	137
Heterogen Atoms

Software

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