7O23

C-terminal head domain of the trimeric autotransporter adhesin BpaC from Burkholderia pseudomallei fused to a GCN4 anchor

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3S6L

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	293	Protein solution at 130 mg/mL in 20 mM Tris-HCl pH 8, 150 mM NaCl. Hit in JCSG IV, E10: 100 nL protein solution + 100 nL reservoir solution 0.1 M HEPES pH 6.5, 0.8 M (NH4)2SO4 Cryoprotection: add 400 nL of 0.15 M HEPES pH 6.5, 1.2 M (NH4)2SO4, 35% Glycerol

Crystal Properties
Matthews coefficient	Solvent content
2.61	53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.39	α = 90
b = 57.39	β = 90
c = 516.53	γ = 120

Symmetry
Space Group	H 3 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 EIGER X 16M		2019-10-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04	0.97949	Diamond	I04

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.4	44.79	99.53	0.168	0.995	6.87	8		65740	6		12.07

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.4	1.45	99.28		1.061	0.657	1.39	7.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	3S6L	1.4	44.79	1.71	65740	3239	99.48	0.184	0.2171	24

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	5.6287
f_angle_d	0.8165
f_chiral_restr	0.079
f_bond_d	0.0061
f_plane_restr	0.0043

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2031
Nucleic Acid Atoms
Solvent Atoms	278
Heterogen Atoms	13

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
pointless	data scaling
Aimless	data scaling
PHASER	phasing
BUCCANEER	model building
Coot	model building

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.