1SN2

Crystal Structure of Sea Bream Transthyretin at 1.90A Resolution

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1F41	Human transthyretin, pdb code 1F41

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	296	PEG 1550 MME, sodium citrate, ammonium sulphate, nickel sulphate, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 296K

Crystal Properties
Matthews coefficient	Solvent content
2.14	42.64

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.497	α = 90
b = 58.497	β = 90
c = 140.71	γ = 90

Symmetry
Space Group	P 41

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100					M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X11		EMBL/DESY, HAMBURG	X11

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	1.75	50	97.1	0.047				46104

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	1.75	1.81	92.2		0.451

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	THROUGHOUT	Human transthyretin, pdb code 1F41	1.75	19.84	46104	39742	4439	100	0.1783	0.17836	0.17489	0.20964	RANDOM	21.58

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]
-0.18			-0.18		0.36

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	18.389
r_dihedral_angle_1_deg	3.959
r_scangle_it	2.757
r_scbond_it	1.622
r_mcangle_it	1.316
r_angle_refined_deg	1.303
r_angle_other_deg	0.718
r_mcbond_it	0.695
r_symmetry_vdw_refined	0.326
r_symmetry_vdw_other	0.278
r_symmetry_hbond_refined	0.259
r_nbd_refined	0.228
r_nbd_other	0.215
r_xyhbond_nbd_refined	0.184
r_chiral_restr	0.082
r_xyhbond_nbd_other	0.049
r_bond_refined_d	0.008
r_gen_planes_refined	0.004
r_gen_planes_other	0.002
r_bond_other_d	0.001
r_dihedral_angle_2_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_nbtor_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3529
Nucleic Acid Atoms
Solvent Atoms	361
Heterogen Atoms	5

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
CNS	phasing