8CCX

Human SOD1 in complex with S-XL6 cross-linker

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.75	293	2.5M ammonium sulphate, 150mM NaCl, sodium acetate pH 4.75

Crystal Properties
Matthews coefficient	Solvent content
2.02	39

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.81	α = 90
b = 68.02	β = 105.85
c = 50.69	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	PIXEL	DECTRIS EIGER R 4M		2023-01-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E+	1.54180

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	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	1.665	37.362	95.2	0.145	0.197	0.133	0.97	83.8	3.4		28274

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.67	1.69			0.417	0.578	0.399	0.757		3.5

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2C9V	1.665	37.362	28270	1400	95.073	0.186	0.1841	0.2327	19.318

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]
0.054		0.233	-0.359		0.149

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.771
r_dihedral_angle_4_deg	13.865
r_dihedral_angle_3_deg	12.955
r_dihedral_angle_other_3_deg	12.544
r_dihedral_angle_1_deg	7.688
r_lrange_it	5.056
r_lrange_other	4.86
r_scangle_it	3.293
r_scangle_other	3.292
r_mcangle_it	2.412
r_mcangle_other	2.411
r_scbond_it	2.184
r_scbond_other	2.183
r_mcbond_it	1.66
r_mcbond_other	1.66
r_angle_refined_deg	1.605
r_angle_other_deg	1.439
r_symmetry_nbd_refined	0.304
r_symmetry_xyhbond_nbd_refined	0.284
r_nbd_other	0.234
r_nbd_refined	0.226
r_symmetry_nbd_other	0.195
r_metal_ion_refined	0.172
r_xyhbond_nbd_refined	0.163
r_nbtor_refined	0.152
r_symmetry_nbtor_other	0.083
r_chiral_restr	0.079
r_bond_refined_d	0.011
r_bond_other_d	0.01
r_gen_planes_refined	0.008
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2220
Nucleic Acid Atoms
Solvent Atoms	272
Heterogen Atoms	26

Software

Software
Software Name	Purpose
REFMAC	refinement
REFMAC	refinement
Aimless	data scaling
MOSFLM	data reduction
REFMAC	phasing