2C9V

Atomic resolution structure of Cu-Zn Human Superoxide dismutase

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1HL5	PDB ENTRY 1HL5

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.75		3.0M AMMONIUM SULPHATE, 0.1M NACL, 50MM ACETATE BUFFER, pH 4.75

Crystal Properties
Matthews coefficient	Solvent content
2	39

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.605	α = 90
b = 67.368	β = 106.54
c = 52.532	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	MARRESEARCH	MIRRORS	2005-09-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX10.1		SRS	PX10.1

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	1.07	30	97.9	0.06	17	3.7		110674

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	1.07	1.11	87.4		0.34	2.5	2.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1HL5	1.07	27	105769	4401	97.3	0.132	0.131	0.158	RANDOM	10.23

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]
-0.23		0.02	0.05		0.2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.106
r_dihedral_angle_4_deg	11.941
r_dihedral_angle_3_deg	11.606
r_dihedral_angle_1_deg	10.356
r_scangle_it	4.39
r_scbond_it	3.316
r_mcangle_it	2.607
r_angle_refined_deg	2.136
r_mcbond_it	1.904
r_angle_other_deg	1.68
r_xyhbond_nbd_refined	0.283
r_symmetry_vdw_refined	0.28
r_nbd_refined	0.256
r_symmetry_hbond_refined	0.232
r_symmetry_vdw_other	0.213
r_nbd_other	0.202
r_nbtor_refined	0.167
r_chiral_restr	0.125
r_nbtor_other	0.09
r_bond_refined_d	0.022
r_gen_planes_refined	0.013
r_gen_planes_other	0.009
r_bond_other_d	0.003
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	597
Heterogen Atoms	31

Software

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