2B77

Human transthyretin (TTR) complexed with Diflunisal analogues- TTR.2',4'-DICHLORO-4-HYDROXY-1,1'-BIPHENYL-3-CARBOXYLIC ACID

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1BMZ	pdb entry 1bmz

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	298	1 mM EDTA, 10 mM sodium phosphate, 0.35-0.50 M ammonium sulfate - crystals were soaked with the inhibitor, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.15	42.71

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.215	α = 90
b = 85.082	β = 90
c = 64.401	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	CCD	CCD-PXL-L600		2003-04-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.541

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	1.7	51.3	99.94	0.07	0.07	16.94		25485	25485

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	pdb entry 1bmz	1.7	51.3	25486	25485	1350	99.94	0.20985	0.20985	0.2083	0.23845	RANDOM	20.4

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]
-0.04			-0.09		0.13

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.24
r_dihedral_angle_3_deg	15.762
r_dihedral_angle_4_deg	14.526
r_dihedral_angle_1_deg	6.933
r_scangle_it	4.657
r_scbond_it	3.298
r_angle_refined_deg	2.361
r_mcbond_it	2.215
r_mcangle_it	2.147
r_angle_other_deg	0.961
r_symmetry_vdw_refined	0.335
r_mcbond_other	0.311
r_symmetry_vdw_other	0.302
r_symmetry_hbond_refined	0.238
r_xyhbond_nbd_refined	0.225
r_nbd_other	0.207
r_nbd_refined	0.201
r_nbtor_refined	0.184
r_chiral_restr	0.094
r_nbtor_other	0.088
r_gen_planes_other	0.059
r_gen_planes_refined	0.031
r_bond_refined_d	0.022
r_bond_other_d	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1752
Nucleic Acid Atoms
Solvent Atoms	217
Heterogen Atoms	36

Software

Software
Software Name	Purpose
REFMAC	refinement
AMoRE	phasing