3ESN

Human transthyretin (TTR) complexed with N-(3,5-Dibromo-4-hydroxyphenyl)-2,6-dimethylbenzamide

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		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 with inhibitors 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 298K

Crystal Properties
Matthews coefficient	Solvent content
2.13	42.16

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.654	α = 90
b = 84.62	β = 90
c = 64.937	γ = 90

Symmetry
Space Group	P 21 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray		CCD	MARMOSAIC 325 mm CCD	Flat mirror (vertical focusing), single crystal Si(111) bent monochromator (ho rizontal focusing)	2007-06-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.9795	SSRL	BL9-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (Observed)	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	1.35	64.96	98.4	0.037	38.3	6.7		51708			20.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.35	1.4	88.1		0.501	2.3	4.9	4558

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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		THROUGHOUT	1.35	50	51668	2629	98.32	0.175	0.173	0.202	RANDOM	22.034

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]
0.21			-0.2		-0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.142
r_dihedral_angle_4_deg	21.281
r_dihedral_angle_3_deg	15.183
r_sphericity_free	10.208
r_sphericity_bonded	5.972
r_scangle_it	5.886
r_dihedral_angle_1_deg	5.871
r_scbond_it	4.023
r_mcangle_it	2.991
r_rigid_bond_restr	2.05
r_mcbond_it	1.962
r_angle_refined_deg	1.725
r_angle_other_deg	1.402
r_mcbond_other	1.034
r_chiral_restr	0.108
r_bond_refined_d	0.018
r_gen_planes_refined	0.01
r_bond_other_d	0.003
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1892
Nucleic Acid Atoms
Solvent Atoms	215
Heterogen Atoms	40

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing