3LI9

Crystal Structure of the extracellular domain of the putative histidine kinase mmHK1S-Z2

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	5.6	293	15% PEG3350, 0.21M NH4SO4, 0.1MBistris, pH 5.6, vapor diffusion, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.23	44.81

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 67.283	α = 90
b = 88.495	β = 90
c = 99.177	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			2006-08-02	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X4A	0.97903, 0.97936, 0.97174	NSLS	X4A

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	1.7	20	98.9	0.051	16.5	4.7		62673

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)
	1.7	1.76	93.2		0.335		3.5	5885

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	MAD	THROUGHOUT	1.7	19.912	32966	1668	99.35	0.182	0.181	0.211	RANDOM	22.813

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]
2.1			-0.74		-1.36

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.656
r_dihedral_angle_4_deg	20.595
r_dihedral_angle_3_deg	12.797
r_scangle_it	5.972
r_dihedral_angle_1_deg	5.477
r_scbond_it	3.955
r_mcangle_it	2.374
r_angle_refined_deg	2.079
r_mcbond_it	1.387
r_chiral_restr	0.157
r_bond_refined_d	0.027
r_gen_planes_refined	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2061
Nucleic Acid Atoms
Solvent Atoms	230
Heterogen Atoms	14

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SOLVE	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction