2QE3

Crystal structure of human tl1a extracellular domain

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.5	298	10 MM CACL2, 100 MM TRIS, PH 8.50, 20% METHONAL, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 290K, temperature 298.0K

Crystal Properties
Matthews coefficient	Solvent content
3.48	64.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 120.404	α = 90
b = 120.404	β = 90
c = 120.404	γ = 90

Symmetry
Space Group	P 41 3 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	CCD	ADSC QUANTUM 315	MIRRORS	2007-04-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A		NSLS	X29A

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	2.5	50	99.9	0.17	0.124	3.5	21.1		10856			54.5

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	2.5	2.59	100		0.56	0.96	1.7	10.6

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2TNF	2.5	19.8	10462	323	99.98	0.21085	0.20929	0.26336	RANDOM	51.137

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.538
r_dihedral_angle_3_deg	20.234
r_dihedral_angle_4_deg	17.171
r_scangle_it	14.697
r_scbond_it	11.975
r_mcangle_it	11.473
r_dihedral_angle_1_deg	11.062
r_mcbond_it	9.372
r_angle_refined_deg	2.355
r_nbtor_refined	0.355
r_symmetry_hbond_refined	0.289
r_xyhbond_nbd_refined	0.255
r_nbd_refined	0.244
r_symmetry_vdw_refined	0.178
r_chiral_restr	0.142
r_bond_refined_d	0.027
r_gen_planes_refined	0.009
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_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
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	1121
Nucleic Acid Atoms
Solvent Atoms	59
Heterogen Atoms	1

Software

Software
Software Name	Purpose
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling