Experiment: 3Q7R

1.6A resolution structure of the ChxR receiver domain from Chlamydia trachomatis

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION		277	20% PEG 3350, 0.2M sodium thiocyanate, vapor diffusion, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.36	47.87

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 149.867	α = 90
b = 41.268	β = 105.52
c = 45.171	γ = 90

Symmetry
Space Group	C 1 2 1

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 210r		2009-01-01		SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 17-BM	1.0000	APS	17-BM

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	23.66	99.8	0.039	13.5	3.6		35320

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	1.66	100		0.296	3.1	3.6	3523

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	1.6	23.66	1.34	35309	1768	99.74	0.1894	0.1883	0.1869	0.2102	0.2117	RANDOM	28.8457

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]
-0.135		-0.0167	0.1602		-0.0252

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	11.967
f_angle_d	1.513
f_chiral_restr	0.11
f_bond_d	0.015
f_plane_restr	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1701
Nucleic Acid Atoms
Solvent Atoms	108
Heterogen Atoms	8

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
d*TREK	data reduction
d*TREK	data scaling