ISDA

X-RAY DIFFRACTION

Crystallization Details

Method	pH	Temprature	Details
X-RAY DIFFRACTION	?	277	Purified PDE2(215-900) was exchanged into crystallization buffer (50 mM HEPES pH7.5, 50 mM NaCl, and 2 mM TCEP) to a final concentration of 10mg/ml. Protein was mixed 1:1 with precipitant solution composed of 5-10% isopropanol, 0.1 M MES pH5.4-6.0, 0.2M Ca(OAc)2. Clusters of thin plate-like crystals appeared in 3-4 days, VAPOR DIFFUSION, temperature 277K

Unit Cell:

a: 66.233 Å b: 89.699 Å c: 264.187 Å α: 90.00° β: 90.00° γ: 90.00°

Symmetry:

Space Group: P 21 21 21

Crystal Properties:

Matthew's Coefficient: 2.48 Solvent Content: 50.50

Refinement Statistics

Diffraction ID	Structure Solution Method	Cross Validation Method	Resolution Limit (High)	Resolution Limit (Low)	Number of Reflections (Observed)	Number of Reflections (R-free)	Percent Reflections (Observed)	R-Work	R-Free	Mean Isotropic
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3.02	18.26	31511	1598	99.51	0.2147	0.3110	77.62

Data Collection

Overall

Resolution Limit (High)	Resolution Limit (Low)	Percent Possible (Observed)	R Merge I (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
3.00	50.00	99.8	0.141	?	28.57	14.2	31872	31809	?	-3.0	93.975

Highest Resolution Shell

#	Resolution Limits (Low)	Resolution Limits (High)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	3.00	3.11	100.0	?	?	?	?	?

Diffraction

Diffraction experiment

Crystal ID	Scattering Type	Data Collection Temprature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1		100 K

Radiation Source

Source	Type	Wavelength List	Synchrotron Site	Beamline
SYNCHROTRON	ESRF BEAMLINE ID14-4	1.28	ESRF	ID14-4

Software