4H2G

Human ecto-5'-nucleotidase (CD73): crystal form II (open) in complex with adenosine

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	8.5	292	1.8 M magnesium sulfate, 0.1 M Tris-HCl , pH 8.5, VAPOR DIFFUSION, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
2.5	50.86

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 67.1	α = 90
b = 131	β = 90
c = 66.01	γ = 90

Symmetry
Space Group	P 21 21 2

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	RAYONIX MX-225		2009-07-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.2	0.91841	BESSY	14.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.55	29.34					84660

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	1.55	29.18	84653	83411	1241	99.43	0.12929	0.12852	0.17961	RANDOM	19.744

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]
1.64			0.46		-2.11

RMS Deviations
Key	Refinement Restraint Deviation
r_sphericity_free	79.927
r_dihedral_angle_2_deg	38.198
r_sphericity_bonded	35.325
r_dihedral_angle_4_deg	17.407
r_dihedral_angle_3_deg	12.888
r_dihedral_angle_1_deg	8.318
r_rigid_bond_restr	5.147
r_angle_refined_deg	1.996
r_chiral_restr	0.151
r_bond_refined_d	0.022
r_gen_planes_refined	0.013
r_bond_other_d
r_angle_other_deg

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4078
Nucleic Acid Atoms
Solvent Atoms	776
Heterogen Atoms	23

Software

Software
Software Name	Purpose
REFMAC	refinement