Experiment: 1L0W

Aspartyl-tRNA synthetase-1 from space-grown crystals

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	Under microgravity	7.5	298	Ammonium sulfate, Tris-HCl, EDTA, DTT, PMSF, pH 7.5, Under microgravity, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
3.26	62.21

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.02	α = 90
b = 156.1	β = 90
c = 177.98	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	298	IMAGE PLATE	MARRESEARCH	mirrors	1996-11-25	M	SINGLE WAVELENGTH
2	1	298

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X11	0.91	EMBL/DESY, HAMBURG	X11

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2	25		0.057	17.3			100854	-3	-3	42

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2	2.07	77.9		0.235	2.16

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.01	11.98	81861	2438	70.7	0.217	0.2175	0.246	0.2462	RANDOM	42

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
6.81			-8.72		1.91

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	23.3
c_angle_deg	1.7
c_improper_angle_d	1.18
c_bond_d	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9334
Nucleic Acid Atoms
Solvent Atoms	187
Heterogen Atoms

Software

Software
Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
CNS	phasing