1Q44

Crystal Structure of an Arabidopsis Thaliana Putative Steroid Sulfotransferase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH	6	297	Sodium Malonate, MES, pH 6.0, Micro-Batch, temperature 297K

Crystal Properties
Matthews coefficient	Solvent content
2.89	57.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 91.477	α = 90
b = 120.899	β = 90
c = 74.315	γ = 90

Symmetry
Space Group	C 2 2 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	90	CCD	MARRESEARCH	Bent cylindrical Si-mirror (Rh coating)	2003-06-27	M	MAD
2	1	x-ray	90	M	SINGLE WAVELENGTH
1,2	1

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-ID-B	0.979	APS	14-ID-B
2	SYNCHROTRON	APS BEAMLINE 14-ID-B	1.127	APS	14-ID-B

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.9	50	99.2	0.048	0.048	43.02	7.3	32697	32697			40.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1,2	1.9	1.97	98.8		0.336	0.336	5.07	6.6	3191

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-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	built from MAD	1.9	20	32697	30975	1654	99.28	0.191	0.19301	0.19147	0.22171	RANDOM	32.419

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]
-1.47			3		-1.53

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.976
r_scangle_it	4.747
r_scbond_it	2.941
r_mcangle_it	2.207
r_angle_refined_deg	1.903
r_mcbond_it	1.254
r_angle_other_deg	0.948
r_symmetry_hbond_refined	0.376
r_symmetry_vdw_other	0.312
r_nbd_other	0.242
r_nbd_refined	0.218
r_symmetry_vdw_refined	0.197
r_xyhbond_nbd_refined	0.183
r_chiral_restr	0.116
r_nbtor_other	0.091
r_bond_refined_d	0.02
r_gen_planes_other	0.019
r_gen_planes_refined	0.014
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2302
Nucleic Acid Atoms
Solvent Atoms	214
Heterogen Atoms	7

Software

Software
Software Name	Purpose
MAR345	data collection
SCALEPACK	data scaling
SOLVE	phasing
RESOLVE	model building
REFMAC	refinement
RESOLVE	phasing