3HTL

Structure of the Corynebacterium diphtheriae major pilin SpaA points to a modular pilus assembly with stabilizing isopeptide bonds

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	293	20% PEG 3350, 0.2M Na Formate, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.36	47.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 34.78	α = 90
b = 64.037	β = 90
c = 199.192	γ = 90

Symmetry
Space Group	P 21 21 21

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	ADSC QUANTUM 315r		2008-11-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	AUSTRALIAN SYNCHROTRON BEAMLINE MX1	0.980	Australian Synchrotron	MX1

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	1.8	100	98.47			42467	39696

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.8		98.47

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	1.8	29.22	42467	39696	2120	98.47	0.19268	0.1901	0.24188	RANDOM	19.902

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]
0.23			0.09		-0.32

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.832
r_dihedral_angle_3_deg	13.973
r_dihedral_angle_4_deg	12.151
r_dihedral_angle_1_deg	6.313
r_scangle_it	3.908
r_scbond_it	2.397
r_mcangle_it	1.564
r_angle_refined_deg	1.418
r_mcbond_it	0.866
r_angle_other_deg	0.844

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.832
r_dihedral_angle_3_deg	13.973
r_dihedral_angle_4_deg	12.151
r_dihedral_angle_1_deg	6.313
r_scangle_it	3.908
r_scbond_it	2.397
r_mcangle_it	1.564
r_angle_refined_deg	1.418
r_mcbond_it	0.866
r_angle_other_deg	0.844
r_mcbond_other	0.208
r_chiral_restr	0.085
r_bond_refined_d	0.013
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3221
Nucleic Acid Atoms
Solvent Atoms	588
Heterogen Atoms	2

Software

Software
Software Name	Purpose
REFMAC	refinement

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 R01GM133198.