5N5Q

Human TTR altered conformation from soaking in iron chloride.

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	5K1J

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	293	protein: 10 mg/ml Dialysed in 100 milli-M NaCl, 50 milli-M sodium acetate, pH 5.5 precipitant: 27 % polyethylene glycol 4,000, 0.2 M imidazole malate, pH 6.0. cryosoak: 40% SM3 (, 25 % MPEG 5K, 25 % diethylene glycol + 25 % ethylene glycol + 25 % glycerol + 25 % 1,4-dioxane) 25 % MPEG 5K, 0.1 M CHC (citric acid, HEPES, CHES: 90 % acid /10 % basic), 30 mM FeCl2, 2 h soak.

Crystal Properties
Matthews coefficient	Solvent content
2.39	48.52

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.73	α = 90
b = 81.81	β = 90
c = 69.46	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 EIGER X 9M	mirrors	2016-07-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SOLEIL BEAMLINE PROXIMA 2	1.73915	SOLEIL	PROXIMA 2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	CC (Half)	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	2.53	50	99.2	0.2	0.185	0.996	8.28	13.21		15593		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.53	2.68	95.3		1.98	1.82	0.3	0.83	12.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	5K1J	2.53	40.9	8113	427	99.45	0.19508	0.19205	0.25252	RANDOM	52.976

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]
-1.07			1.74		-0.67

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.473
r_dihedral_angle_4_deg	18.591
r_dihedral_angle_3_deg	16.948
r_long_range_B_other	12.248
r_long_range_B_refined	12.223
r_scangle_other	8.559
r_dihedral_angle_1_deg	6.963
r_mcangle_it	6.268
r_mcangle_other	6.266
r_scbond_it	5.657
r_scbond_other	5.654
r_mcbond_it	3.852
r_mcbond_other	3.851
r_angle_refined_deg	1.604
r_angle_other_deg	0.932
r_chiral_restr	0.088
r_bond_refined_d	0.013
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1792
Nucleic Acid Atoms
Solvent Atoms	101
Heterogen Atoms	33

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing