1X6V

The crystal structure of human 3'-phosphoadenosine-5'-phosphosulfate synthetase 1

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.6	285	91 mM sodium Citrate, 270 mM ammonium acetate, 12% PEG 4000, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 285K

Crystal Properties
Matthews coefficient	Solvent content
2.9	57

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.21	α = 90
b = 82.55	β = 105.1
c = 133.6	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	CCD	ADSC QUANTUM 4		2003-03-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-1		ESRF	ID14-1

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	1.75	30		0.069	11	3.6		159267		1

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	1.75	1.85	88		0.58	2.1	3.2

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT WITH INITIAL MERCURY PHASES	THROUGHOUT	PDB ENTRIES 1G8F, 1D6J	1.75	129.1	165305	156571	8203	99.69	0.16789	0.1663	0.19811	RANDOM	24.273

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]
-0.41		0.24	1.4		-0.86

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.913
r_scangle_it	4.932
r_scbond_it	3.07
r_mcangle_it	2.163
r_angle_refined_deg	1.805
r_angle_other_deg	1.48
r_mcbond_it	1.227
r_symmetry_vdw_other	0.299
r_symmetry_vdw_refined	0.272
r_nbd_other	0.26
r_nbd_refined	0.229
r_xyhbond_nbd_refined	0.227
r_symmetry_hbond_refined	0.224
r_chiral_restr	0.13
r_nbtor_other	0.088
r_bond_refined_d	0.021
r_gen_planes_other	0.014
r_gen_planes_refined	0.012
r_bond_other_d	0.002
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9192
Nucleic Acid Atoms
Solvent Atoms	1091
Heterogen Atoms	29

Software

Software
Software Name	Purpose
REFMAC	refinement
X-GEN	data reduction
XDS	data scaling
XFIT	data reduction