3QVU

Crystal structure of Ancestral variant b9 of SULT 1A1 in complex with PAP and p-nitrophenol

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1LS6

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	293	The protein was concentrated to 33mg.mL-1. Condition: 18-22% (w/v) PEG 3350 and 50mM Tris-HCL buffer pH 8. Crystals appeared after two days at 293 K. , VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.15	42.66

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.86	α = 90
b = 71.54	β = 90
c = 122.77	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	RIGAKU RAXIS IV++	Osmic confocal mirrors	2011-02-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH3R	1.54178

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	2.5	48.85	97.8	0.126	10.62	4.91	21070	20787	3	3

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	THROUGHOUT	1LS6	2.5	48.85	21070	19746	1040	100	0.21029	0.20835	0.24712	RANDOM	18.119

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]
-0.01			0.05		-0.04

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.671
r_dihedral_angle_4_deg	13.289
r_dihedral_angle_3_deg	13.059
r_dihedral_angle_1_deg	3.813
r_scangle_it	3.713
r_scbond_it	2.352
r_mcangle_it	1.444
r_angle_other_deg	1.141
r_mcbond_it	0.775
r_angle_refined_deg	0.587
r_mcbond_other	0.115
r_chiral_restr	0.039
r_bond_refined_d	0.003
r_gen_planes_refined	0.002
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4702
Nucleic Acid Atoms
Solvent Atoms	87
Heterogen Atoms	82

Software

Software
Software Name	Purpose
StructureStudio	data collection
MOLREP	phasing
REFMAC	refinement
XDS	data reduction
XDS	data scaling