3DTE

Crystal structure of the IRRE protein, a central regulator of DNA damage repair in deinococcaceae

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7.5	281	20% PEG 3350, 0.2M Potassium Fluoride, pH 7.5, VAPOR DIFFUSION, temperature 281K

Crystal Properties
Matthews coefficient	Solvent content
2.25	45.44

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.053	α = 90
b = 52.813	β = 90
c = 64.91	γ = 90

Symmetry
Space Group	P 21 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	CCD	ADSC QUANTUM 315		2007-09-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.97930	ESRF	ID23-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	2.6	40	100	0.129		11.2		9581			44

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.6	2.74	100		0.43		11.7

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	2.6	20	9581	9097	456	99.99	0.21991	0.21825	0.25415	RANDOM	43.615

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]
3.42			-1.52		-1.9

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.414
r_dihedral_angle_4_deg	18.485
r_dihedral_angle_3_deg	15.483
r_dihedral_angle_1_deg	4.3
r_mcangle_it	2.232
r_scangle_it	2.184
r_mcbond_it	1.614
r_scbond_it	1.561
r_angle_refined_deg	1.453
r_nbtor_refined	0.326
r_nbd_refined	0.274
r_symmetry_vdw_refined	0.253
r_xyhbond_nbd_refined	0.181
r_symmetry_hbond_refined	0.128
r_chiral_restr	0.085
r_bond_refined_d	0.016
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1873
Nucleic Acid Atoms
Solvent Atoms	49
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
DNA	data collection
MOSFLM	data reduction
SCALA	data scaling
SHARP	phasing