3DX9

Crystal Structure of the DM1 TCR at 2.75A

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	293	Hepes, Magnesium Formate, PEG 3350, pH 7.0, vapor diffusion, hanging drop, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.26	45.56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 41.74	α = 90
b = 70.727	β = 94.69
c = 154.412	γ = 90

Symmetry
Space Group	P 1 21 1

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	MAR CCD 165 mm		2006-11-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 17-ID	1	APS	17-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.75	154.3				22674	22674

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	2.75	154.3	22674	22662	1159	96.25	0.207	0.207	0.204	0.263	RANDOM	41.475

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]
0.95		-0.44	-2.02		1

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.331
r_dihedral_angle_3_deg	17.659
r_dihedral_angle_4_deg	16.294
r_dihedral_angle_1_deg	11.802
r_angle_refined_deg	1.49
r_angle_other_deg	0.98
r_scangle_it	0.939
r_scbond_it	0.64
r_mcangle_it	0.374
r_mcbond_it	0.281
r_symmetry_vdw_other	0.261
r_symmetry_hbond_refined	0.247
r_nbd_refined	0.211
r_symmetry_vdw_refined	0.208
r_nbd_other	0.204
r_nbtor_refined	0.185
r_xyhbond_nbd_refined	0.151
r_chiral_restr	0.108
r_xyhbond_nbd_other	0.09
r_nbtor_other	0.086
r_mcbond_other	0.074
r_bond_refined_d	0.011
r_bond_other_d	0.004
r_gen_planes_refined	0.004
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7073
Nucleic Acid Atoms
Solvent Atoms	159
Heterogen Atoms

Software

Software
Software Name	Purpose
XSCALE	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction