3ZCI

Crystal structure of Helicobacter pylori T4SS protein CagL in a cubic crystal form with a distorted helical conformation of the RGD-motif

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6.5	277	PROTEIN CONCENTRATION:7 MG/ML. RESERVOIR: 100 MM MES PH6.5, 1.2 M AMMONIUM SULPHATE, 2-4 % 1,4 DIOXANE. VAPOR DIFFUSION AT 277 K WITH DROP RATIO OF

Crystal Properties
Matthews coefficient	Solvent content
5	75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 181.002	α = 90
b = 181.002	β = 90
c = 181.002	γ = 90

Symmetry
Space Group	F 2 3

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	MARRESEARCH	MIRRORS	2011-03-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.2	0.97814, 0.97814, 0.97847	BESSY	14.2

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	2.2	20	99.9	0.14	12.7	14.4		24942		-3	37.06

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	2.2	2.32	100		0.91	2.3	9.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MAD	NONE	2.201	19.868	1.33	24907	1286	99.95	0.2094	0.2075	0.2446	46.39

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]
1.8678			1.8678		1.8678

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	16.831
f_angle_d	1.292
f_chiral_restr	0.075
f_bond_d	0.012
f_plane_restr	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1517
Nucleic Acid Atoms
Solvent Atoms	113
Heterogen Atoms	52

Software

Software
Software Name	Purpose
PHENIX	refinement
MOSFLM	data reduction
SCALA	data scaling
SHELXCDE	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.