1JA8

Kinetic Analysis of Product Inhibition in Human Manganese Superoxide Dismutase

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	8	300	ammonium sulfate, imidazole-malate, pH 8, VAPOR DIFFUSION, temperature 300K

Crystal Properties
Matthews coefficient	Solvent content
2.48	50.45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.608	α = 90
b = 79.608	β = 90
c = 240.101	γ = 120

Symmetry
Space Group	P 61 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	132	IMAGE PLATE	MARRESEARCH		2000-12-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-1	0.77300	SSRL	BL9-1

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	2.1	20	98.9	0.084	9.8	6.6	27115	26963	2	2	24.3

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	2.1	2.17	100		0.519	4	6.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1AP6	2.12	17.82	26963	26963	2591	99.1	0.243	0.284	RANDOM	33.9

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]
2.64	4.74		2.64		-5.28

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	21.2
c_angle_deg	1.3
c_improper_angle_d	0.89
c_mcangle_it	0.42
c_scangle_it	0.25
c_mcbond_it	0.22
c_scbond_it	0.14
c_bond_d	0.026

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3128
Nucleic Acid Atoms
Solvent Atoms	358
Heterogen Atoms	22

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
CNS	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.