3DSH

Crystal structure of dimeric interferon regulatory factor 5 (IRF-5) transactivation domain

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	298	0.5-2.0% PEG 6000, 100mM imidazole, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
3.45	64.37

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.162	α = 90
b = 66.162	β = 90
c = 156.254	γ = 120

Symmetry
Space Group	P 31 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		2007-01-01	M	SINGLE WAVELENGTH
2	1	x-ray	100	IMAGE PLATE	RIGAKU RAXIS IV		2007-01-01	M	SINGLE WAVELENGTH
1,2	1

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A	1.1	NSLS	X29A
2	ROTATING ANODE	RIGAKU RUH3R	1.54178

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	2	100	96.9	0.057	13.8		26875	26875

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	2.07	78.8		0.0229		7.2

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MIR	THROUGHOUT	2	30.46	25440	25440	1342	96.83	0.206	0.20632	0.20448	0.24241	RANDOM	45.605

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]
-0.66	-0.33		-0.66		0.98

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.67
r_dihedral_angle_4_deg	27.706
r_dihedral_angle_3_deg	17
r_dihedral_angle_1_deg	6.815
r_scangle_it	3.787
r_mcangle_it	3.242
r_scbond_it	2.537
r_mcbond_it	2.192
r_angle_refined_deg	1.32
r_nbtor_refined	0.329
r_symmetry_hbond_refined	0.224
r_nbd_refined	0.223
r_symmetry_vdw_refined	0.204
r_xyhbond_nbd_refined	0.201
r_chiral_restr	0.122
r_bond_refined_d	0.013
r_gen_planes_refined	0.011
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	1935
Nucleic Acid Atoms
Solvent Atoms	132
Heterogen Atoms

Software

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