6XFK

Crystal structure of the type III secretion system pilotin-secretin complex InvH-InvG

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4	291	0.5 M lithium sulfate, 8.3% PEG 6000, 100 mM sodium acetate

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.01

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 36.313	α = 90
b = 36.313	β = 90
c = 221.602	γ = 120

Symmetry
Space Group	P 65 2 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	PIXEL	DECTRIS PILATUS3 6M		2020-03-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.2	1.00	ALS	5.0.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	CC (Half)	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	1.85	36.93	99.5	1	16.8	16.5		8226

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.85	1.92			0.908

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	6XFJ	1.85	36.93	7768	420	99.48	0.2189	0.2175	0.2465	RANDOM	43.558

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]
-0.5	-0.25		-0.5		1.63

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.538
r_dihedral_angle_4_deg	22.869
r_dihedral_angle_3_deg	15.793
r_dihedral_angle_1_deg	5.247
r_angle_refined_deg	1.766
r_angle_other_deg	1.449
r_chiral_restr	0.095
r_bond_refined_d	0.014
r_gen_planes_refined	0.012
r_gen_planes_other	0.002

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.538
r_dihedral_angle_4_deg	22.869
r_dihedral_angle_3_deg	15.793
r_dihedral_angle_1_deg	5.247
r_angle_refined_deg	1.766
r_angle_other_deg	1.449
r_chiral_restr	0.095
r_bond_refined_d	0.014
r_gen_planes_refined	0.012
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	618
Nucleic Acid Atoms
Solvent Atoms	69
Heterogen Atoms	10

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
DIALS	data reduction
Aimless	data scaling
PHASER	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.