Experiment: 1HXM

Crystal Structure of a Human Vgamma9/Vdelta2 T Cell Receptor

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	290	28% PEG4000, 0.2 M Li2SO4, 0.1 M Tris-HCl, 20% glycerol, 4 mg/mL protein, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 290K

Crystal Properties
Matthews coefficient	Solvent content
2.56	51.99

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 74.048	α = 90
b = 151.736	β = 99.48
c = 97.873	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	IMAGE PLATE	RIGAKU RAXIS IV	Yale mirrors	2000-06-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	3	60	98.8	0.106	20.2	9.8	42118	42118		-3	59.1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	3	3.11	97.6		0.7	2.7	9.1

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 (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	3.12	30.77	40945	37543	1938	99	0.219	0.219	0.266	SHELLS	42.3

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]
24.14		7.44	-19.46		-4.68

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	26
c_scangle_it	8.7
c_mcangle_it	7.3
c_scbond_it	5.98
c_mcbond_it	4.45
c_angle_deg	1.4
c_improper_angle_d	0.83
c_bond_d	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	13756
Nucleic Acid Atoms
Solvent Atoms	54
Heterogen Atoms	10

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
SHARP	phasing
CNS	refinement