2RHG

Tryptophan synthase complexed with IGP, pH 7.0, internal aldimine

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	EMBL/DESY, HAMBURG BEAMLINE BW7B
Synchrotron site	EMBL/DESY, HAMBURG
Beamline	BW7B
Temperature [K]	100
Detector technology	IMAGE PLATE
Collection date	1999-12-14
Detector	MAR scanner 345 mm plate
Spacegroup name	C 1 2 1
Unit cell lengths	183.654, 59.573, 67.547
Unit cell angles	90.00, 94.71, 90.00

Refinement procedure

Resolution	19.990 - 2.000
R-factor	0.212
Rwork	0.212
R-free	0.23900
Structure solution method	FOURIER SYNTHESIS
RMSD bond length	0.007
RMSD bond angle	1.200
Data reduction software	XDS
Data scaling software	XSCALE
Phasing software	CNS (1.0)
Refinement software	CNS (1.0)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	50.000	1.950
High resolution limit [Å]	1.900	1.900
Rmerge	0.062	0.175
Number of reflections	76750
<I/σ(I)>	10.8	4.5
Completeness [%]	69.8	74.3
Redundancy	2	1.5

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	7	293	Protein: 50 mM Bicine pH 7.8, 10 mM Na-EDTA, 1 mM DTE, 20 uM PLP. Reservoir: 50 mM Bicine pH 7.8, 5 mM DTE, 5 mM Na-EDTA, 0.1 M PLP, 2 mM spermine, 2 mM NaN3, 8-12% PEG8000. Crystal soaked in 15% PEG8000, 20% glycerol, 23 mM IGP, pH controlled at pH 9.0 before flash-cooling, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 7.0