8AKO

Structure of EspB-EspK complex: the non-identical twin of the PE-PPE-EspG secretion mechanism.

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	277	0.2-1.2 M sodium malonate 0.1 M HEPES (pH 7.8) 8-14% PEG3350

Crystal Properties
Matthews coefficient	Solvent content
5.06	75.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 101.579	α = 90
b = 101.579	β = 90
c = 377.045	γ = 120

Symmetry
Space Group	P 61 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		2021-02-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID30B	0.976	ESRF	ID30B

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	Rpim I (All)	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	2.29	85.82	53.2	0.034	11.7	6.2		28129			63.86

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.3	2.6			0.38	1.9

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 (All)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	4XXX	2.293	85.816	28129	1444	53.194	0.237	0.2348	0.2786	RANDOM	84.479

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]
-0.034	-0.017		-0.034		0.111

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.903
r_dihedral_angle_4_deg	19.125
r_dihedral_angle_3_deg	17.011
r_rigid_bond_restr	8.394
r_dihedral_angle_1_deg	6.174
r_angle_refined_deg	1.484
r_nbtor_refined	0.308
r_xyhbond_nbd_refined	0.202
r_symmetry_xyhbond_nbd_refined	0.191
r_nbd_refined	0.17
r_symmetry_nbd_refined	0.109
r_chiral_restr	0.095
r_gen_planes_refined	0.007
r_bond_refined_d	0.006
r_mcbond_it
r_mcangle_it
r_scbond_it
r_scangle_it
r_lrange_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3892
Nucleic Acid Atoms
Solvent Atoms	38
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing