1PG2

METHIONYL-TRNA SYNTHETASE FROM ESCHERICHIA COLI COMPLEXED WITH METHIONINE AND ADENOSINE

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	ESRF BEAMLINE ID29
Synchrotron site	ESRF
Beamline	ID29
Temperature [K]	100
Detector technology	CCD
Collection date	2002-11-14
Detector	ADSC QUANTUM 4
Wavelength(s)	0.9793
Spacegroup name	P 1 21 1
Unit cell lengths	77.787, 45.742, 87.510
Unit cell angles	90.00, 108.48, 90.00

Refinement procedure

Resolution	80.000 - 1.750
R-factor	0.2012
Rwork	0.201
R-free	0.22600 *
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1qqt
RMSD bond length	0.005
RMSD bond angle	1.160
Data reduction software	MOSFLM
Data scaling software	SCALA
Phasing software	CNS
Refinement software	CNS

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	80.000	1.840
High resolution limit [Å]	1.750	1.750
Rmerge	0.064 *	0.222 *
Number of reflections	53467 *
<I/σ(I)>	7.2
Completeness [%]	89.0	89 *
Redundancy	2.5	1.7

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	unknown *	7	280	Mechulam, Y., (1999) J. Mol. Biol., 294, 1287. *