3HUE

Structure of the S. pombe Nbs1 FHA-BRCT1-BRCT2 domains

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	281	1.2-1.4M potassium formate, 100mM sodium acetate pH 4.6, 5% w/v polyethylene glycol 8000, VAPOR DIFFUSION, HANGING DROP, temperature 281K

Crystal Properties
Matthews coefficient	Solvent content
2.26	45.62

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.671	α = 90
b = 204.538	β = 90
c = 62.897	γ = 90

Symmetry
Space Group	C 2 2 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	CCD	ADSC QUANTUM 315		2006-09-06	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 12.3.1	0.9796, 0.9797	ALS	12.3.1

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	2.8	50	99.9	0.1	13.9	4.3	16723	16723	1	2.75	54

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	2.8	2.9	100		0.426	2.75	4.2	1667

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	MAD	THROUGHOUT	2.8	50	1	8612	8612	441	99.86	0.23826	0.23826	0.23589	0.28518	RANDOM	33.642

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]
-0.38			-2.22		2.6

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.656
r_dihedral_angle_3_deg	20.978
r_dihedral_angle_4_deg	16.525
r_dihedral_angle_1_deg	6.785
r_angle_refined_deg	1.758
r_scangle_it	1.721
r_scbond_it	1.227
r_mcbond_it	0.844
r_mcangle_it	0.702
r_symmetry_vdw_refined	0.358
r_nbtor_refined	0.286
r_symmetry_hbond_refined	0.226
r_xyhbond_nbd_refined	0.174
r_nbd_refined	0.131
r_chiral_restr	0.107
r_bond_refined_d	0.019
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2429
Nucleic Acid Atoms
Solvent Atoms	68
Heterogen Atoms

Software

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