ISDA: 1B7Y

X-RAY DIFFRACTION

Crystallization Details

Method	pH	Temprature	Details
X-RAY DIFFRACTION	7.0	313	HANGING-DROP TECHNIQUE AT 4O C WITH (NH4)2SO4 AS PRECIPITANT. EACH DROPLET OF THE PHENYLALANYL-TRNA SYNTHETASE SOLUTION (10 microliters) AT PROTEIN CONCENTRATION OF 3 TO 5 MG PER ML IN 20 MM IMIDASOL-HCL BUFFER (PH 7.8), 1 MM MGCL2, 1 MM NAN3 AND 15% SATURATED (NH4)2SO4 IN THE SAME BUFFER. CRYSTALS APPEARED AFTER ONE TO TWO WEEKS AND GREW UP TO THE MAXIMAL DIMENSIONS OF 0.4X0.4X0.25 MM IN A FEW WEEKS, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 313K

Unit Cell:

a: 174.500 Å b: 174.500 Å c: 140.200 Å α: 90.00° β: 90.00° γ: 120.00°

Symmetry:

Space Group: P 32 2 1

Crystal Properties:

Matthew's Coefficient: 3.8 Solvent Content: 70.0

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	2.5	50.0	81613	4000	95.7	?	0.2670000	62.0

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
2.5	50.0	95.7	0.0640000	?	6.0	4	81613	81613	?	0.0	45.0

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	2.5	2.59	88.5	?	?	2.2	4	?

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	SPRING-8 BEAMLINE BL41XU	?	SPring-8	BL41XU

Software