2FLK

Crystal structure of CheY in complex with CheZ(200-214) solved from a F432 crystal grown in CAPS (pH 10.5)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	10.5	298	2M ammonium sulfate, 0.2M lithium sulfate, 0.1M CAPS, pH 10.5, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 198.75	α = 90
b = 198.75	β = 90
c = 198.75	γ = 90

Symmetry
Space Group	F 4 3 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 4		2003-02-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X4A	0.9793	NSLS	X4A

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	2.1	20	99.9	0.1	21.3		20212	20143		-3	27.3

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	2.1	2.17	98.7		0.358	6.3		1931

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1FQW	2.1	19.96	18410	17947	1687	97.49	0.198	0.19765	0.19665	0.20736	RANDOM	20.041

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	14.598
r_scangle_it	4.095
r_dihedral_angle_1_deg	3.258
r_scbond_it	2.41
r_mcangle_it	1.487
r_angle_other_deg	1.434
r_angle_refined_deg	1.184
r_mcbond_it	0.744
r_nbd_refined	0.236
r_symmetry_vdw_other	0.215
r_symmetry_vdw_refined	0.208
r_nbd_other	0.192
r_symmetry_hbond_refined	0.181
r_xyhbond_nbd_refined	0.125
r_xyhbond_nbd_other	0.125
r_nbtor_other	0.117
r_chiral_restr	0.063
r_bond_refined_d	0.011
r_gen_planes_refined	0.006
r_gen_planes_other	0.004
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1084
Nucleic Acid Atoms
Solvent Atoms	80
Heterogen Atoms	33

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement