1N78

Crystal structure of Thermus thermophilus glutamyl-tRNA synthetase complexed with tRNA(Glu) and glutamol-AMP.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.7	293	PEG1500, pH 6.7, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.52	50.81

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 110.492	α = 90
b = 219.87	β = 90
c = 135.119	γ = 90

Symmetry
Space Group	C 2 2 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	MARRESEARCH		2001-06-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL41XU	0.9	SPring-8	BL41XU

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	2.1	50	96.4	0.074			426837	92817		-0.3	15.5

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)
	2.1	2.2	88.5		0.342

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB 1G59	2.1	49.36	90631	4574	94.5	0.22	0.219	0.259	RANDOM	35.5

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]
2.23			-4.03		1.8

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	21
c_scangle_it	2.78
c_mcangle_it	2.03
c_scbond_it	1.84
c_improper_angle_d	1.41
c_mcbond_it	1.27
c_angle_deg	1.2
c_bond_d	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7628
Nucleic Acid Atoms	3194
Solvent Atoms	739
Heterogen Atoms	76

Software

Software
Software Name	Purpose
HKL-2000	data collection
SCALEPACK	data scaling
CNS	refinement
HKL-2000	data reduction
CNS	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.