3FA2

Crystal Structure of the BRCA1 Associated Ring Domain (BARD1) Tandem BRCT Domains

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	298	0.1M MES 15% w/v PEG3350, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.6	52.67

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 44.979	α = 90
b = 67.466	β = 99.2
c = 86.783	γ = 90

Symmetry
Space Group	P 1 21 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	IMAGE PLATE	RIGAKU RAXIS IV	mirrors	2007-02-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.54178

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.01	50	82.4	0.045	0.063	16.77	3.3		28268	2	2	39.37

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.01	2.08	30.4		0.578	0.696	1.22	2.6	1032

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	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	PDB ENTRY 2NTE CHAIN A	2.2	30	2	2	23629	1255	95.01	0.22605	0.22237	0.29772	RANDOM	21.983

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]
3.48		-1.85	-2.37		-1.7

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.264
r_dihedral_angle_4_deg	15.995
r_dihedral_angle_3_deg	14.553
r_dihedral_angle_1_deg	6.891
r_scangle_it	1.751
r_angle_refined_deg	1.283
r_scbond_it	1.267
r_mcangle_it	0.839
r_angle_other_deg	0.832
r_mcbond_it	0.687
r_symmetry_vdw_other	0.255
r_xyhbond_nbd_refined	0.207
r_nbd_refined	0.199
r_nbd_other	0.187
r_xyhbond_nbd_other	0.181
r_nbtor_refined	0.18
r_symmetry_hbond_refined	0.18
r_symmetry_vdw_refined	0.167
r_mcbond_other	0.118
r_nbtor_other	0.083
r_chiral_restr	0.074
r_bond_refined_d	0.014
r_bond_other_d	0.004
r_gen_planes_refined	0.004
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3295
Nucleic Acid Atoms
Solvent Atoms	88
Heterogen Atoms	27

Software

Software
Software Name	Purpose
CrystalClear	data collection
PHASER	phasing
REFMAC	refinement
d*TREK	data reduction
HKL-2000	data scaling