3LT6

A transition from strong right-handed to canonical left-handed supercoiling in a conserved coiled coil segment of trimeric autotransporter adhesins - the Mutant 4 structure

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION		293	VAPOR DIFFUSION, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.53	51.36

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 40	α = 90
b = 115.76	β = 89.93
c = 48.08	γ = 90

Symmetry
Space Group	P 1 21 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	MAR CCD 165 mm			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MPG/DESY, HAMBURG BEAMLINE BW6	0.979	MPG/DESY, HAMBURG	BW6

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	1.8	20	98.36	0.07	14.3	5.3		37715		-3

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	1.8	1.91			0.43		5.1	2005

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	SAD	THROUGHOUT	1.8	19.3	37715	2005	98.36	0.22935	0.22739	0.26619	RANDOM	20.536

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]
-9.46		1.12	28.32		-18.85

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.869
r_dihedral_angle_4_deg	20.665
r_dihedral_angle_3_deg	18.461
r_dihedral_angle_1_deg	5.956
r_scangle_it	5.61
r_scbond_it	3.613
r_mcangle_it	2.041
r_angle_refined_deg	2.003
r_mcbond_it	1.338
r_chiral_restr	0.14

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.869
r_dihedral_angle_4_deg	20.665
r_dihedral_angle_3_deg	18.461
r_dihedral_angle_1_deg	5.956
r_scangle_it	5.61
r_scbond_it	3.613
r_mcangle_it	2.041
r_angle_refined_deg	2.003
r_mcbond_it	1.338
r_chiral_restr	0.14
r_bond_refined_d	0.022
r_gen_planes_refined	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2834
Nucleic Acid Atoms
Solvent Atoms	65
Heterogen Atoms

Software

Software
Software Name	Purpose
MAR345	data collection
SHELXS	phasing
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling

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.