4QO6

Structural studies of CdsD, a structural protein of the Type III secretion system (TTSS) of Chlamydia trachomatis

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	295	50 mM MES; pH 6.0 - 3 % PEG4000 - 15 % 2-propanol - 50 mM MgCl2, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
3.01	59.08

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 106.6	α = 90
b = 23.91	β = 104.95
c = 118.65	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	PIXEL	DECTRIS PILATUS 2M		2013-02-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04-1	0.92	Diamond	I04-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.26	28.66	97.6			14312	13969	2	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.26	2.39	92.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	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	SAD	THROUGHOUT	2.26	28.66	2	14312	13267	699	98.03	0.19696	0.19462	0.24133	RANDOM	38.091

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]
3.5		-0.68	-1.26		-1.65

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.569
r_dihedral_angle_4_deg	17.013
r_dihedral_angle_3_deg	15.524
r_long_range_B_refined	8.504
r_long_range_B_other	8.501
r_dihedral_angle_1_deg	6.966
r_scangle_other	6.098
r_mcangle_it	4.472
r_mcangle_other	4.47
r_scbond_it	3.768
r_scbond_other	3.758
r_mcbond_it	3.047
r_mcbond_other	3.037
r_angle_refined_deg	1.766
r_angle_other_deg	0.885
r_chiral_restr	0.102
r_bond_refined_d	0.016
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1655
Nucleic Acid Atoms
Solvent Atoms	82
Heterogen Atoms	15

Software

Software
Software Name	Purpose
GDA	data collection
PHENIX	model building
REFMAC	refinement
XDS	data reduction
XDS	data scaling
PHENIX	phasing