4YDY

CRYSTAL STRUCTURE OF DARPIN 44C12V5 IN COMPLEX WITH HUMAN IL-4

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2B8U	2B8U (IL-4), 2J8S (Darpin)
experimental model	PDB	2J8S	2B8U (IL-4), 2J8S (Darpin)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.5	293	18% PEG 3350, 0.2 M LITHIUM SULFATE, 0.1 M SODIUM ACETATE, PH 4.5 0.1 M SODIUM ACETATE, PH 4.5, 18% GLYCEROL

Crystal Properties
Matthews coefficient	Solvent content
2.8	56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.25	α = 90
b = 113.66	β = 90
c = 117.06	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	PIXEL	PSI PILATUS 6M		2013-06-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 17-ID	1.000	APS	17-ID

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	30	91.6	0.085	10.6	3.3		46738		-3	30.6

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	2.05	86.5		0.338	3.9	3.1

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2B8U (IL-4), 2J8S (Darpin)	2	27.8	45618	954	91.6	0.2024	0.20161	0.23943	RANDOM	34.4

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]
-2.23			1.68		0.55

RMS Deviations
Key	Refinement Restraint Deviation
r_scangle_it	36.644
r_scbond_it	35.157
r_dihedral_angle_2_deg	32.616
r_dihedral_angle_4_deg	21.999
r_dihedral_angle_3_deg	13.971
r_mcangle_it	4.658
r_dihedral_angle_1_deg	4.512
r_mcbond_it	2.832
r_angle_refined_deg	0.982
r_chiral_restr	0.069
r_bond_refined_d	0.008
r_gen_planes_refined	0.004
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4240
Nucleic Acid Atoms
Solvent Atoms	364
Heterogen Atoms	16

Software

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