6Z9B

Human Ecto-5'-nucleotidase (CD73) in complex with AOPCP derivative A830 (compound 16 in publication) in the closed form (crystal form III)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4H2I	pdbid 4H2I

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.5	291	CD73 at 7 mg/mL was incubated on ice for one hour with 1mM of the inhibitor and 0.1 mM ZnCl2. 1 uL of protein was mixed with 1 uL of 11-14% PEG6000 and 100 mM sodium citrate pH 5.4-5.6. For cryoprotection glycerol was added to a final concentration of 15 % to the reservoir buffer.

Crystal Properties
Matthews coefficient	Solvent content
2.55	51.71

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.24	α = 90
b = 96.45	β = 90
c = 235.17	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	100	PIXEL	DECTRIS PILATUS 6M		2016-06-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.1	0.91840	BESSY	14.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	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	2.17	48.23	99.2	0.223	0.243	0.99	8.61	6.425		32496			32.78

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.17	2.3	96.4		0.836	0.915	0.837	1.8	6.038

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	pdbid 4H2I	2.17	48.23	32496	1625	99.2	0.21	0.208	0.22	0.263	0.28	RANDOM	42.75

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]
2.532			-13.9648		11.4328

RMS Deviations
Key	Refinement Restraint Deviation
t_other_torsion	20.13
t_omega_torsion	3.48
t_angle_deg	1.16
t_bond_d	0.01
t_dihedral_angle_d
t_trig_c_planes
t_gen_planes
t_it
t_nbd
t_improper_torsion

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4064
Nucleic Acid Atoms
Solvent Atoms	285
Heterogen Atoms	38

Software

Software
Software Name	Purpose
XSCALE	data scaling
BUSTER	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
BUSTER	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729.