3G04

Crystal structure of the TSH receptor in complex with a thyroid-stimulating autoantibody

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1XWD	PDB ENTRY 1XWD

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	292	8% PEG 8000, 0.1M MES, 0.25M ZINC ACETATE, pH 6.00, VAPOR DIFFUSION, HANGING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
2.66	53.82

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.888	α = 90
b = 175.784	β = 90
c = 205.806	γ = 90

Symmetry
Space Group	I 21 21 21

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	ADSC QUANTUM 4		2006-11-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX14.2	0.98	SRS	PX14.2

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	2.55	30	96.1	0.071	0.071	10.5	4.6	26775	25731		2.5	47.7

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.55	2.61	99.2		0.361	0.361		4.4

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1XWD	2.55	26.72	24426	1301	96	0.184	0.181	0.18	0.245	0.25	RANDOM	36

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]
0.16			-0.19		0.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.599
r_dihedral_angle_4_deg	18.934
r_dihedral_angle_3_deg	16.207
r_dihedral_angle_1_deg	6.528
r_scangle_it	3.392
r_mcangle_it	2.673
r_scbond_it	2.261
r_mcbond_it	1.775
r_angle_refined_deg	1.236
r_nbtor_refined	0.306
r_symmetry_vdw_refined	0.25
r_nbd_refined	0.201
r_metal_ion_refined	0.177
r_symmetry_hbond_refined	0.164
r_xyhbond_nbd_refined	0.146
r_chiral_restr	0.082
r_symmetry_metal_ion_refined	0.046
r_bond_refined_d	0.009
r_gen_planes_refined	0.003
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_other
r_symmetry_vdw_other
r_symmetry_hbond_other
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	5036
Nucleic Acid Atoms
Solvent Atoms	289
Heterogen Atoms	89

Software

Software
Software Name	Purpose
PXGEN	data collection
AMoRE	phasing
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling