4YRS

Crystal structure of T. cruzi Histidyl-tRNA synthetase in complex with N-(quinolin-3-yl)propanamide (Chem 1698)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		298	0.2 M ammonium sulfate, 23 % to 28 % PEG 3350, 0.1 M sodium citrate pH 4.8 to 5.3, 1 mM TCEP

Crystal Properties
Matthews coefficient	Solvent content
2.59	52.44

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.455	α = 90
b = 119.677	β = 94.17
c = 66.75	γ = 90

Symmetry
Space Group	I 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS PILATUS 6M		2014-06-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL12-2	0.95	SSRL	BL12-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	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	2.75	37.81	96.2	0.054	0.03	0.999	17	4.1		13023

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.75	2.9	97.6		0.729	0.402	0.732	2	4.2	1938

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	3LC0	2.75	37.81	12361	657	95.92	0.1834	0.1807	0.2371	RANDOM	78.757

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]
4.24		-2.29	-0.53		-3.34

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.595
r_dihedral_angle_4_deg	18.72
r_dihedral_angle_3_deg	14.379
r_dihedral_angle_1_deg	5.527
r_mcangle_it	2.497
r_mcbond_it	1.477
r_mcbond_other	1.477
r_angle_refined_deg	1.112
r_angle_other_deg	0.716
r_chiral_restr	0.057

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.595
r_dihedral_angle_4_deg	18.72
r_dihedral_angle_3_deg	14.379
r_dihedral_angle_1_deg	5.527
r_mcangle_it	2.497
r_mcbond_it	1.477
r_mcbond_other	1.477
r_angle_refined_deg	1.112
r_angle_other_deg	0.716
r_chiral_restr	0.057
r_bond_refined_d	0.007
r_gen_planes_refined	0.003
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3234
Nucleic Acid Atoms
Solvent Atoms	30
Heterogen Atoms	26

Software

Software
Software Name	Purpose
Aimless	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
REFMAC	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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.