4JFF

Preservation of peptide specificity during TCR-MHC contact dominated affinity enhancement of a melanoma-specific TCR

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	291	0.1 M TRIS, 15% PEG 4000, 17.4% Glycerol, pH 7.0, vapor diffusion, sitting drop, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
3.22	61.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 121.44	α = 90
b = 121.44	β = 90
c = 82.3	γ = 90

Symmetry
Space Group	P 43

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		mirrors	2010-10-08		SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I03	0.9763	Diamond	I03

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.43	68.13	100	0.091	14.8	8.3	45232	45232			55.88

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	2.43	2.49	100		0.909	0.909	0.8	8.4	3333

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.43	68.129	45209	2278	100	0.213	0.2104	0.2628	RANDOM	54.7259

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]
0.33			0.33		-0.67

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	24.797
r_dihedral_angle_3_deg	12.058
r_dihedral_angle_4_deg	10.616
r_scangle_it	5.471
r_scbond_it	3.713
r_dihedral_angle_1_deg	2.833
r_mcangle_it	2.462
r_mcbond_it	1.317
r_angle_refined_deg	1.246
r_angle_other_deg	0.743

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	24.797
r_dihedral_angle_3_deg	12.058
r_dihedral_angle_4_deg	10.616
r_scangle_it	5.471
r_scbond_it	3.713
r_dihedral_angle_1_deg	2.833
r_mcangle_it	2.462
r_mcbond_it	1.317
r_angle_refined_deg	1.246
r_angle_other_deg	0.743
r_mcbond_other	0.325
r_chiral_restr	0.102
r_bond_refined_d	0.021
r_gen_planes_refined	0.011
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6640
Nucleic Acid Atoms
Solvent Atoms	159
Heterogen Atoms	65

Software

Software
Software Name	Purpose
SCALA	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
GDA	data collection
xia2	data reduction

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.