6RHW | pdb_00006rhw

Crystal structure of human CD11b I-domain (CD11b-I) in complex with Staphylococcus aureus octameric bi-component leukocidin LukGH

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1IDO	LukGH dimer from the structure of its complex with mouse CD11b I-domain (CD11b-I) and the modified huCD11b-I domain (PDB code 1IDO) lacking the C-terminal alpha-helix (residues 303-315)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	295	Crystallization drops were prepared by mixing 1.0 uL LukGH/huCD11b-I complex (5.2 mg/mL) in 25 mM HEPES (pH 7.5), 1 mM MgCl2 with 0.5 uL reservoir solution containing 30% (v/v) Jeffamine-600 and 10% (v/v) DMSO.

Crystal Properties
Matthews coefficient	Solvent content
2.61	52.81

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 122.107	α = 90
b = 122.107	β = 90
c = 133.697	γ = 90

Symmetry
Space Group	P 4 21 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 PILATUS 6M		2018-11-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29	1.072270	ESRF	ID29

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	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	2.748	45.081	53.8	0.31	0.347	0.09	0.996	7.8	12.6		14539			53.18

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.748	2.994	15		1.668	1.739	0.486	0.627	1.8	12.5

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-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	LukGH dimer from the structure of its complex with mouse CD11b I-domain (CD11b-I) and the modified huCD11b-I domain (PDB code 1IDO) lacking the C-terminal alpha-helix (residues 303-315)	2.75	45.08	1.33	14518	658	53.66	0.2412	0.2393	0.24	0.2812	0.28	Random selection	61.12

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	12.4293
f_angle_d	0.7813
f_chiral_restr	0.0478
f_plane_restr	0.0043
f_bond_d	0.0031

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5730
Nucleic Acid Atoms
Solvent Atoms	2
Heterogen Atoms	25

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
STARANISO	data scaling
Aimless	data scaling
PHASER	phasing
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.