Experiment: 8TFN

Structure of anti-TCRvbeta6-5 antibody in complex with the cognate TCR

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		291.15	Cystalline precipitate was observed in 20% PEG3350 and 0.2 M Magnesium Sulfate. 10 mM Strontium chloride as an additive resulted in well-formed crystals after 5-7 days. The final crystal was cryoprotected in a solution containing 20% PEG3350, 0.2 M Magnesium Sulfate and 10% glycerol

Crystal Properties
Matthews coefficient	Solvent content
3.42	64.03

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 64.588	α = 90
b = 118.865	β = 90
c = 173.021	γ = 90

Symmetry
Space Group	P 2 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	PIXEL	DECTRIS PILATUS3 6M		2021-11-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-D	1.03320	APS	23-ID-D

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	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	2.54	86.51	100	0.15	0.16	0.997	6.6	12.6		44885			62.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.54	2.58	100		0.351	0.1	11.5

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2.54	86.51	38364	1946	78.84	0.2472	0.2449	0.2609	0.2938	0.3086

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6369
Nucleic Acid Atoms
Solvent Atoms	10
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
xia2	data scaling
DIALS	data reduction
PHASER	phasing