5AKV

Transthyretin binding heterogeneity and anti-amyloidogenic activity of natural polyphenols and their metabolites: genistein-7-O- glucuronide

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1F41	PDB ENTRY 1F41

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7		CRYSTALS OF WT HUMAN TTR- LIGAND COMPLEXES WERE OBTAINED AT ROOM TEMPERATURE IN ABOUT ONE WEEK BY CO-CRYSTALLIZATION, USING THE HANGING-DROP VAPOR DIFFUSION METHOD. THE PROTEIN (5 MG/ML), IN 20 MM SODIUM PHOSPHATE, PH 7, WAS INCUBATED WITH A FOUR-FOLD MOLAR EXCESS OF LIGANDS SOLUBILIZED IN DMSO. DROPS WERE FORMED BY MIXING EQUAL VOLUMES OF THE SOLUTION CONTAINING LIGAND-TTR COMPLEXES AND OF THE RESERVOIR/PRECIPITANT SOLUTION (2.2 M AMMONIUM SULPHATE, 0.1 M KCL, 0.03 M SODIUM PHOSPHATE, PH 7.0).

Crystal Properties
Matthews coefficient	Solvent content
2.3	46.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.843	α = 90
b = 84.959	β = 90
c = 63.636	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	100	PIXEL	DECTRIS PILATUS 6M	KB MIRROR	2013-08-31	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PETRA III, EMBL c/o DESY BEAMLINE P13 (MX1)		PETRA III, EMBL c/o DESY	P13 (MX1)

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.52	63.64	99.9	0.06	16.8	6.5		36372		3	20.08

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.52	1.55	98.5		0.52	3	6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 1F41	1.52	63.636	1.36	36328	1819	99.43	0.1717	0.1702	0.2004

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	14.741
f_angle_d	1.515
f_chiral_restr	0.051
f_bond_d	0.011
f_plane_restr	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1785
Nucleic Acid Atoms
Solvent Atoms	225
Heterogen Atoms	64

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
Aimless	data scaling
PHENIX	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.