4EB7

A. fulgidus IscS-IscU complex structure

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5		proteins 20 mg/mL (in buffer 13 mM Tris and 38 mM NaCl) mixed 1:1 with 0.2 M Ammonium acetate, HEPES 100 mM, PEG 3350 25%, pH 7.5, VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.75	55.29

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 75.469	α = 90
b = 96.129	β = 90
c = 152.793	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray		CCD	ADSC QUANTUM 4			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-2	0.872	ESRF	ID23-2

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	2.75	81.37	97.5	0.077	14.76	5.3	29148	29148

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	MOLECULAR REPLACEMENT	THROUGHOUT	2.75	81.37	27573	27573	1472	98.07	0.21665	0.2136	0.27284	RANDOM	64.427

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]
-7.65			2.94		4.71

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.606
r_dihedral_angle_4_deg	20.395
r_dihedral_angle_3_deg	18.135
r_dihedral_angle_1_deg	6.265
r_scangle_it	2.981
r_scbond_it	1.872
r_angle_refined_deg	1.641
r_mcangle_it	0.951
r_mcbond_it	0.499
r_chiral_restr	0.105
r_bond_refined_d	0.015
r_gen_planes_refined	0.006
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6400
Nucleic Acid Atoms
Solvent Atoms	48
Heterogen Atoms	69

Software

Software
Software Name	Purpose
REFMAC	refinement