3HY0

Crystal Structure of catalytic fragment of E. coli AlaRS G237A in complex with GlySA

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.8	277	32% PEG400, 0.1 M HEPES, pH 7.8, vapor diffusion, sitting drop, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
4.15	70.39

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 114.877	α = 90
b = 115.036	β = 90
c = 125.574	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	100	CCD	ADSC QUANTUM 315r		2009-05-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL7-1	0.97971	SSRL	BL7-1

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	50	100	0.093	19.509	7.1		131348

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	99.9		0.611		6.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	1.9	39.79	131243	6603	99.8	0.173	0.171	0.2	25.16

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]
-0.07			0.07

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.223
r_dihedral_angle_4_deg	13.74
r_dihedral_angle_3_deg	10.788
r_scangle_it	5.969
r_dihedral_angle_1_deg	4.666
r_scbond_it	4.426
r_mcangle_it	3.938
r_mcbond_it	3.538
r_angle_refined_deg	0.91
r_nbtor_refined	0.319
r_nbd_refined	0.198
r_symmetry_hbond_refined	0.196
r_symmetry_vdw_refined	0.195
r_xyhbond_nbd_refined	0.178
r_chiral_restr	0.061
r_bond_refined_d	0.004
r_gen_planes_refined	0.002
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7034
Nucleic Acid Atoms
Solvent Atoms	1187
Heterogen Atoms	116

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection