6XL8

Crystal structure of 3-O-Sulfotransferase isoform 3 in complex with 8mer oligosaccharide with no 6S sulfation

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	Protein: 14mg/ml 3ost3a in 25mM Tris pH 7.5, 125mM NaCl, 4mM PAP and 5mM 8mer oligosaccharide Reservoir: 0.2M KI and 20%PEG3350

Crystal Properties
Matthews coefficient	Solvent content
2.3	46.45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.217	α = 90
b = 147.469	β = 94.35
c = 51.037	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	PIXEL	DECTRIS PILATUS 200K	varimaxHF	2019-01-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.514

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	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	2.34	50	94.8	0.136	0.163	0.089	7.3	3.1		22494			37.53

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.34	2.38	77.2		0.405	0.523	0.326	0.718		2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	1T8U	2.34	21.7	1.47	22462	1116	94.31	0.2189	0.2162	0.2709	40.62

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	14.2133
f_angle_d	0.9388
f_chiral_restr	0.0487
f_bond_d	0.0111
f_plane_restr	0.0034

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4109
Nucleic Acid Atoms
Solvent Atoms	71
Heterogen Atoms	256

Software

Software
Software Name	Purpose
PHENIX	refinement
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling
PHASER	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.