3ELN

A Putative Fe2+-bound Persulfenate Intermediate in Cysteine Dioxygenase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.6	298	Purified enzyme was concentrated to ~8 mg/mL and then added into a crystallization screen containing 0.1 M tri-sodium citrate pH=5.6, 24-34% PEG 4K, and 0.1-0.25 M ammonium acetate. 1.5L of protein solution was added to each well and mixed with an equivalent volume of reservoir solution., VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.19	43.88

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.523	α = 90
b = 57.523	β = 90
c = 122.19	γ = 90

Symmetry
Space Group	P 43 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 4		2006-03-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X12B	0.9801	NSLS	X12B

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.42	20	100				39648

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.42	1.45	99.97

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	FOURIER SYNTHESIS	THROUGHOUT	1.42	19.68	37576	1989	99.91	0.13545	0.13328	0.17662	RANDOM	17.187

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]
-0.59			-0.59		1.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.867
r_sphericity_free	18.64
r_dihedral_angle_4_deg	17.716
r_dihedral_angle_3_deg	12.832
r_sphericity_bonded	6.303
r_dihedral_angle_1_deg	6.047
r_scangle_it	5.64
r_scbond_it	3.84
r_mcangle_it	2.762
r_angle_other_deg	1.823
r_mcbond_it	1.752
r_angle_refined_deg	1.605
r_rigid_bond_restr	1.556
r_mcbond_other	0.524
r_chiral_restr	0.102
r_bond_refined_d	0.016
r_gen_planes_refined	0.008
r_gen_planes_other	0.003
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1592
Nucleic Acid Atoms
Solvent Atoms	352
Heterogen Atoms	10

Software

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