ISDA: 1IRA

X-RAY DIFFRACTION

Crystallization Details

Method	pH	Temprature	Details
X-RAY DIFFRACTION	7.0	?	THE COMPLEX OF THE IL-1 RECEPTOR WITH THE ANTAGONIST WAS PREPARED BY MIXING A SOLUTION OF IL-1 RECEPTOR IN 50 MM TRIS (PH 7.5) AND 150 MM NACL WITH A SOLUTION OF IL1RA IN THE SAME BUFFER. THE COMPLEX WAS CRYSTALLIZED USING THE HANGING DROP METHOD. THE DROPS WERE PREPARED BY MIXING 4 UL OF THE PROTEIN SOLUTION WITH 1 UL OF RESERVOIR SOLUTION, CONTAINING 30% (W/V) PEG 3350, 400 MM MGCL2 IN 100 MM MOPS BUFFER (PH 7.0)., vapor diffusion - hanging drop

Unit Cell:

a: 47.200 Å b: 84.600 Å c: 140.200 Å α: 90.00° β: 90.00° γ: 90.00°

Symmetry:

Space Group: P 21 21 21

Crystal Properties:

Matthew's Coefficient: 2.7 Solvent Content: 54.

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	MIR + MOLECULAR REPLACEMENT	THROUGHOUT	2.7	8.0	15012	?	97.6	0.213	0.314	45.2

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
2.70	60.0	97.2	?	0.06	?	4.7	?	15631	?	?	?

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	2.7	2.8	85.3		0.325	?	3.1

Diffraction

Diffraction experiment

Crystal ID	Scattering Type	Data Collection Temprature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1		296 K

Radiation Source

Source	Type	Wavelength List	Synchrotron Site	Beamline
ROTATING ANODE	MACSCIENCE M18X	?	?	?

Software