3OER

Crystal structure of trimeric frataxin from the yeast saccharomyces cerevisiae, complexed with cobalt

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	288	1.7 M (NH4)2SO4, 0.2 M Li2SO4, 4 % -butyrolactone, 0.1 M Tris pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 288K

Crystal Properties
Matthews coefficient	Solvent content
5.43	77.33

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 121.2	α = 90
b = 121.2	β = 90
c = 121.2	γ = 90

Symmetry
Space Group	I 21 3

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	MARMOSAIC 225 mm CCD		2008-09-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX II BEAMLINE I911-3	1.605	MAX II	I911-3

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	3.2	30	99.8	0.046	25.38			4752	1	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	3.2	3.28	99.9		0.493	3.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation 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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2FQL	3.2	28.57	1	4530	4530	484	99.96	0.20883	0.20883	0.20417	0.2555	RANDOM	95.876

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	42.722
r_dihedral_angle_4_deg	34.477
r_dihedral_angle_3_deg	21.915
r_dihedral_angle_1_deg	10.647
r_scangle_it	2.25
r_angle_refined_deg	1.832
r_scbond_it	1.233
r_mcangle_it	0.941
r_mcbond_it	0.485
r_chiral_restr	0.138

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	42.722
r_dihedral_angle_4_deg	34.477
r_dihedral_angle_3_deg	21.915
r_dihedral_angle_1_deg	10.647
r_scangle_it	2.25
r_angle_refined_deg	1.832
r_scbond_it	1.233
r_mcangle_it	0.941
r_mcbond_it	0.485
r_chiral_restr	0.138
r_bond_refined_d	0.014
r_gen_planes_refined	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	876
Nucleic Acid Atoms
Solvent Atoms	16
Heterogen Atoms	1

Software

Software
Software Name	Purpose
MAR345dtb	data collection
AMoRE	phasing
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.