4YRK

Crystal structure of T. cruzi Histidyl-tRNA synthetase in complex with (4-chlorophenyl)methanol (Chem 260)

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	ROTATING ANODE
Source details	RIGAKU MICROMAX-007
Temperature [K]	100
Detector technology	CCD
Collection date	2013-01-09
Detector	RIGAKU SATURN 944
Wavelength(s)	1.54
Spacegroup name	C 1 2 1
Unit cell lengths	89.910, 118.736, 93.705
Unit cell angles	90.00, 91.45, 90.00

Refinement procedure

Resolution	30.000 - 2.200
R-factor	0.2007
Rwork	0.199
R-free	0.22690
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	3lc0
RMSD bond length	0.007
RMSD bond angle	1.139
Data reduction software	XDS
Data scaling software	Aimless (0.1.27)
Phasing software	REFMAC
Refinement software	REFMAC (refmac_5.8.0073)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	35.830	35.830	2.270
High resolution limit [Å]	2.200	9.070	2.200
Rmerge	0.100	0.022	0.552
Rpim	0.070	0.016	0.427
Total number of observations	136941	1961	6971
Number of reflections	48253
<I/σ(I)>	9.7	36.9	1.6
Completeness [%]	96.9	93.5	77.7
Redundancy	2.8	2.9	2.1
CC(1/2)	0.996	0.999	0.671

Crystallization Conditions

crystal 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