4KY2

Transthyretin in complex with the fluorescent folding sensor (E)-7-hydroxy-3-(4-hydroxy-3,5-dimethylstyryl)-4-methyl-2H-chromen-2-one

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	SSRL BEAMLINE BL11-1
Synchrotron site	SSRL
Beamline	BL11-1
Temperature [K]	200
Detector technology	PIXEL
Collection date	2012-07-30
Detector	DECTRIS PILATUS 6M
Wavelength(s)	0.9797
Spacegroup name	P 21 21 2
Unit cell lengths	42.793, 85.646, 63.562
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	38.280 - 1.130
R-factor	0.1616
Rwork	0.161
R-free	0.17430
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	2fbr
RMSD bond length	0.015
RMSD bond angle	1.705
Data scaling software	XSCALE
Phasing software	PHASER
Refinement software	REFMAC

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	38.280	1.190
High resolution limit [Å]	1.130	1.130
Number of reflections	87639
<I/σ(I)>	34.3
Completeness [%]	98.5	90.7
Redundancy	6.1	4.9

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	5.5	298	The WT-TTR was concentrated to 4 mg/mL in 10 mM NaPi, 100 mM KCl, at pH 7.6 and co-crystallized at room temperature using the vapor diffusion sitting drop method. Crystals were grown from 1.395 M sodium citrate, 3.5% v/v glycerol at pH 5.5. The crystals were frozen using a cryo-protectant solution of 1.395 M sodium citrate, pH 5.5, containing 10% v/v glycerol, VAPOR DIFFUSION, SITTING DROP, temperature 298.0K