3VSA

Crystal Structure of O-phosphoserine sulfhydrylase without acetate

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	296	0.1M HEPES sodium pH 7.5, 27% 2-propanol, 12% PEG 4000, 5mM 2-mercaptoethanol, vapor diffusion, hanging drop, temperature 296K

Crystal Properties
Matthews coefficient	Solvent content
2.28	46.01

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 74.506	α = 90
b = 74.506	β = 90
c = 275.988	γ = 90

Symmetry
Space Group	P 43 21 2

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 QUANTUM 315	rhodium-coated mirrors (horizontal and vertical)	2009-04-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL41XU	0.90000	SPring-8	BL41XU

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	2.07	50	99.2	0.079	9.3	8.7		48137			24.5

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	2.07	2.14	98.7		0.302		5.8	4672

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	FOURIER SYNTHESIS	THROUGHOUT	2.07	39.14	48090	2427	99.34	0.1702	0.1674	0.224	RANDOM	31.9875

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]
0.2			0.2		-0.39

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.691
r_dihedral_angle_4_deg	21.037
r_dihedral_angle_3_deg	17.64
r_dihedral_angle_1_deg	6.599
r_scangle_it	4.997
r_scbond_it	3.147
r_angle_refined_deg	2.06
r_mcangle_it	1.966
r_mcbond_it	1.127
r_chiral_restr	0.232
r_bond_refined_d	0.023
r_gen_planes_refined	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5834
Nucleic Acid Atoms
Solvent Atoms	276
Heterogen Atoms	38

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling
REFMAC	phasing