Experiment: 3QU3

Crystal structure of IRF-7 DBD apo form

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2O61	PDB ENTRY 2O61

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1			293	19% PEG 1500, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
1.98	37.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 68.588	α = 90
b = 68.588	β = 90
c = 68.61	γ = 120

Symmetry
Space Group	P 31

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	298	CCD	ADSC QUANTUM 315	VERTICAL FOCUSING MIRROR	2008-08-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A		NSLS	X29A

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	1.3	50	99.8	0.077	21.3	6.5		85736		1

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	1.3	1.35	94.2		0.398	3.4	3.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	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)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 2O61	1.3	29.7	2	85702	85702	2027	96.7	0.169	0.161	0.157	0.2	0.1839	22.2

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]
-0.3678			-0.3678		0.7357

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	13.469
f_angle_d	1.029
f_chiral_restr	0.066
f_bond_d	0.008
f_plane_restr	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2885
Nucleic Acid Atoms
Solvent Atoms	287
Heterogen Atoms	19

Software

Software
Software Name	Purpose
CBASS	data collection
PHASER	phasing
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling