3BPO

Crystal structure of the IL13-IL4R-IL13Ra ternary complex

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	295	12% PEG8K, 8% ethlyene glycol, 0.1M ammonium citrate pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.63	53.23

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 211.51	α = 90
b = 58.169	β = 100.51
c = 64.236	γ = 90

Symmetry
Space Group	C 1 2 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	ADSC QUANTUM 315		2006-09-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.1	1.0	ALS	8.2.1

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	2.9	40	97.1	0.11	11.9	3.9		17289	2

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	2.9	3.06	85.5		0.497	2.2	3.7

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	MOLECULAR REPLACEMENT	THROUGHOUT	3	30	14726	781	99.1	0.25616	0.25307	0.31151	RANDOM	43.236

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]
-1.3		-3.56	3.51		-3.51

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.494
r_dihedral_angle_3_deg	18.232
r_dihedral_angle_4_deg	16.166
r_dihedral_angle_1_deg	10.181
r_mcangle_it	2.141
r_mcbond_it	1.521
r_angle_refined_deg	1.215
r_scangle_it	0.956
r_scbond_it	0.717
r_nbtor_refined	0.31
r_symmetry_vdw_refined	0.285
r_nbd_refined	0.232
r_xyhbond_nbd_refined	0.17
r_chiral_restr	0.106
r_symmetry_hbond_refined	0.073
r_bond_refined_d	0.01
r_gen_planes_refined	0.003
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4478
Nucleic Acid Atoms
Solvent Atoms	54
Heterogen Atoms	42

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
PHASER	phasing