ISDA

X-RAY DIFFRACTION

Crystallization Details

Method	pH	Temprature	Details
X-RAY DIFFRACTION	7.4	293	Crystallization trials were set up using the CD28-AI3 Fab at 15.8 mg/mL in phosphate buffered saline (PBS) pH 7.4. Drops were set up using 100 nl protein and 100 nL reservoir solution containing 200 mM zinc acetate, 0.1 M imidazole pH 8.0, 20% w/v PEG 3000.

Unit Cell:

a: 76.874 Å b: 117.939 Å c: 145.719 Å α: 90° β: 90° γ: 90°

Symmetry:

Space Group: P 21 21 21

Crystal Properties:

Matthew's Coefficient: 2.63 Solvent Content: 53.3

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	FREE R-VALUE	3.050	91.843	25926	1327	99.969	?	0.2575	91.441

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
3.05	91.843	100.0	0.243	?	8.2	10.3	?	25981	?	?	?

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	8.63	91.67	?	?	?	?	8.9	?

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	MAX IV BEAMLINE BioMAX	0.999873	MAX IV	BioMAX

Software