3R18

Chicken sulfite oxidase double mutant with altered activity and substrate affinity

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.5	291	17% PEG 10,000 (W/V), 10 mM barium chloride dihydrate, 100 mM ammonium acetate, 100 mM bis-TRIS propane pH 5.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K

Crystal Properties
Matthews coefficient	Solvent content
2.76	55.43

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 85.623	α = 90
b = 85.623	β = 90
c = 153.371	γ = 90

Symmetry
Space Group	I 41

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	MARMOSAIC 225 mm CCD		2008-12-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-BM	1.0	APS	22-BM

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	2.4	47.51	99.6	0.099	23.1	4.8	21499	21499	-3	-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.4	2.49	96.9		0.345	3.16	4.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2A99	2.4	47.51	2	20379	20379	1098	99.5	0.269	0.167	0.165	0.207	RANDOM	34.458

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]
0.86			0.86		-1.72

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.896
r_dihedral_angle_4_deg	19.61
r_dihedral_angle_3_deg	13.605
r_dihedral_angle_1_deg	5.99
r_scangle_it	2.746
r_scbond_it	1.629
r_angle_refined_deg	1.285
r_mcangle_it	0.971
r_mcbond_it	0.492
r_chiral_restr	0.078

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.896
r_dihedral_angle_4_deg	19.61
r_dihedral_angle_3_deg	13.605
r_dihedral_angle_1_deg	5.99
r_scangle_it	2.746
r_scbond_it	1.629
r_angle_refined_deg	1.285
r_mcangle_it	0.971
r_mcbond_it	0.492
r_chiral_restr	0.078
r_bond_refined_d	0.01
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2873
Nucleic Acid Atoms
Solvent Atoms	198
Heterogen Atoms	25

Software

Software
Software Name	Purpose
MAR345	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

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.