6FFT

Neutron structure of human transthyretin (TTR) S52P mutant in complex with tafamidis at room temperature to 2A resolution (quasi-Laue)

X-RAY DIFFRACTION - NEUTRON DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	5CLX

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293	2.3M sodium malonate pD 5.9

Crystal Properties
Matthews coefficient	Solvent content
2.19	43.77

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.901	α = 90
b = 85.703	β = 90
c = 65.54	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	neutron	293	IMAGE PLATE	LADI III		2017-03-01	L	LAUE
2	1	x-ray	293	PIXEL	DECTRIS PILATUS 6M-F		2017-03-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	NUCLEAR REACTOR	ILL BEAMLINE LADI III	2.7-3.6	ILL	LADI III
2	SYNCHROTRON	ESRF BEAMLINE ID30B	0.9763	ESRF	ID30B

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	R Split (All)	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	2	43.9	71.9	0.121			0.07			6	2.6		17225			23.28
2	2	35.85	98.7	0.041			0.021			31	4.6		12103			19.34

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	R Split (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2	2.11		0.208			0.151			4	2.2
2	2	2.11		0.046			0.023			23.3	4.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	2	42.852		2.06		17192	1718	99.24		0.1612	0.1574	0.1947
NEUTRON DIFFRACTION	MOLECULAR REPLACEMENT	2	35.866				12097	1211	69.83		0.2363	0.2313	0.2801

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	14.635
f_dihedral_angle_d	14.635
f_angle_d	1.975
f_angle_d	1.975
f_chiral_restr	0.088
f_chiral_restr	0.088
f_bond_d	0.017
f_bond_d	0.017
f_plane_restr	0.01
f_plane_restr	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1794
Nucleic Acid Atoms
Solvent Atoms	26
Heterogen Atoms	40

Software

Software
Software Name	Purpose
PHENIX	refinement
LAUEGEN	data reduction
XDS	data reduction
LSCALE	data scaling
SCALA	data scaling
REFMAC	phasing
Coot	model building

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.