2AG6

Crystal structure of p-bromo-l-phenylalanine-tRNA sythetase in complex with p-bromo-l-phenylalanine

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	293	20% PEG-300, %% PEG-8000, 10% GLYCEROL, 0.1M TRIS, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.7	54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 102.719	α = 90
b = 102.719	β = 90
c = 70.598	γ = 90

Symmetry
Space Group	P 43 21 2

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	ADSC QUANTUM 4		2004-10-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.3	1.0	ALS	5.0.3

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	1.9	80		0.072	39.9	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)
1	1.9	1.97	98.3		0.741	4.75	4.3

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	FOURIER SYNTHESIS	THROUGHOUT	PDB Entry 1ZH6	1.9	72.55	28644	1538	99.52	0.21137	0.20947	0.24736	RANDOM	37.762

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]
0.92			0.92		-1.85

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.746
r_dihedral_angle_3_deg	17.541
r_dihedral_angle_4_deg	16.226
r_dihedral_angle_1_deg	5.85
r_scangle_it	5.59
r_scbond_it	4.165
r_mcangle_it	1.758
r_mcbond_it	1.567
r_angle_refined_deg	1.511
r_angle_other_deg	0.837
r_mcbond_other	0.321
r_symmetry_vdw_refined	0.254
r_symmetry_hbond_refined	0.25
r_nbd_refined	0.224
r_symmetry_vdw_other	0.206
r_nbtor_refined	0.188
r_nbd_other	0.185
r_xyhbond_nbd_refined	0.162
r_chiral_restr	0.1
r_nbtor_other	0.091
r_bond_refined_d	0.015
r_gen_planes_refined	0.005
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2462
Nucleic Acid Atoms
Solvent Atoms	142
Heterogen Atoms	13

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling