ISDA

X-RAY DIFFRACTION

Crystallization Details

Method	pH	Temprature	Details
X-RAY DIFFRACTION	5.6	295	5mg/ml xanthorhodopsin in 30mM phosphate pH 5.6, 1mM Na azide was solubilized in 1/3 volume of 16.7% dimyristoyl phoshatidylcholine in 20% nonyl maltoside. Crystals grew in 2.5-3M Na phosphate, pH 5.6, 2.5 mM Na azide after 3-4 months, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Unit Cell:

a: 52.740 Å b: 59.490 Å c: 59.720 Å α: 76.35° β: 74.93° γ: 64.08°

Symmetry:

Space Group: P 1

Crystal Properties:

Matthew's Coefficient: 2.68 Solvent Content: 54.03

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	?	?	1.900	45.100	46278	2333	94.100	?	0.265	46.446

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
1.900	45.100	94.100	0.057	?	8.400	3.600	?	46289	?	?	?

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	1.90	1.97	85.50	?	?	1.5	3.53	4215

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	SSRL BEAMLINE BL9-1	0.979	SSRL	BL9-1

Software