2V0A

Atomic resolution crystal structure of Human Superoxide Dismutase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.75		3.5 M AMMONIUM SULPHATE, 100MM NACL, 50MM ACETATE BUFFER PH 4.75

Crystal Properties
Matthews coefficient	Solvent content
2	38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.545	α = 90
b = 68.22	β = 105.14
c = 50.306	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	CCD	ADSC CCD		2004-05-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX14.2		SRS	PX14.2

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	1.15	21.5	99.6	0.12	20	3.6		88555			12

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	1.15	1.19	89		0.55	2.2	2.7

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	OTHER	THROUGHOUT	1.15	21.5	88555	3458	97.5	0.157	0.155	0.206	RANDOM	13.43

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]
0.55		-0.56	-1.43		0.59

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.085
r_dihedral_angle_3_deg	14.21
r_dihedral_angle_4_deg	13.232
r_dihedral_angle_1_deg	10.812
r_scangle_it	6.751
r_scbond_it	5.44
r_mcangle_it	4.114
r_mcbond_it	3.227
r_angle_other_deg	2.583
r_angle_refined_deg	2.209
r_nbd_refined	0.369
r_symmetry_vdw_refined	0.298
r_symmetry_hbond_refined	0.287
r_xyhbond_nbd_refined	0.28
r_symmetry_vdw_other	0.278
r_nbd_other	0.259
r_nbtor_refined	0.169
r_chiral_restr	0.155
r_nbtor_other	0.104
r_bond_refined_d	0.023
r_gen_planes_refined	0.013
r_gen_planes_other	0.004
r_bond_other_d	0.002
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2220
Nucleic Acid Atoms
Solvent Atoms	576
Heterogen Atoms	23

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling