2G5U

Human Transthyretin (TTR) Complexed with Hydroxylated polychlorinated Biphenyl-4,4'-dihydroxy-3,3',5,5'-tetrachlorobiphenyl

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	298	Crystals of recombinant WT TTR were obtained from protein solutions at 5 mg/ml (in 100 mM KCl, 100 mM phosphate [pH 7.4], 1 M ammonium sulfate) equilibrated against 2 M ammonium sulfate in hanging drop experiments. The TTR ligand complexes were prepared from crystals soaked for 2 weeks with a 10-fold molar excess , pH 7.00, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.18	43.59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.239	α = 90
b = 85.841	β = 90
c = 64.793	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	120	IMAGE PLATE	MAC Science DIP-2030		1999-06-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU

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	1.8	27.52	92.1	0.037			21209	21209

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.86	92.4

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	1BMZ	1.8	27.52	21209	21209	1097	92.07	0.18199	0.18199	0.17998	0.21972	RANDOM	24.923

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]
0.75			-0.29		-0.46

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.303
r_dihedral_angle_4_deg	17.212
r_dihedral_angle_3_deg	14.674
r_dihedral_angle_1_deg	5.365
r_scangle_it	5.283
r_scbond_it	3.516
r_mcangle_it	2.124
r_angle_refined_deg	1.497
r_mcbond_it	1.466
r_nbtor_refined	0.313
r_symmetry_hbond_refined	0.311
r_symmetry_vdw_refined	0.26
r_nbd_refined	0.218
r_xyhbond_nbd_refined	0.2
r_chiral_restr	0.104
r_bond_refined_d	0.014
r_gen_planes_refined	0.006
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_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	1750
Nucleic Acid Atoms
Solvent Atoms	120
Heterogen Atoms	36

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
AMoRE	phasing
REFMAC	refinement
HKL-2000	data reduction