3EZQ

Crystal Structure of the Fas/FADD Death Domain Complex

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	EVAPORATION	4	291	0.95M citric acid, 1.9M ammonium sulfate, pH4, EVAPORATION, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
3.18	61.37

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 126.218	α = 90
b = 126.218	β = 90
c = 299.274	γ = 120

Symmetry
Space Group	P 61

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100				2007-08-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	1	NSLS	X25

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	2.73	30	98.7	0.076	9.3			66820

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)
1	2.731	2.801	88.4		0.435	1.7

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	SAD	THROUGHOUT	2.73	30	66785	3556	98.81	0.2361	0.23388	0.278	RANDOM	72.42

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]
-1.07	-0.53		-1.07		1.6

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	42.388
r_dihedral_angle_3_deg	19.69
r_dihedral_angle_4_deg	18.7
r_dihedral_angle_1_deg	4.711
r_scangle_it	3.145
r_scbond_it	1.977
r_mcangle_it	1.291
r_angle_refined_deg	1.279
r_angle_other_deg	0.947
r_mcbond_it	0.618
r_symmetry_vdw_other	0.323
r_symmetry_vdw_refined	0.237
r_nbd_refined	0.23
r_symmetry_hbond_refined	0.217
r_xyhbond_nbd_refined	0.206
r_nbd_other	0.186
r_nbtor_refined	0.185
r_mcbond_other	0.172
r_nbtor_other	0.089
r_xyhbond_nbd_other	0.076
r_chiral_restr	0.074
r_bond_refined_d	0.016
r_gen_planes_refined	0.004
r_gen_planes_other	0.004
r_bond_other_d	0.003
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	13688
Nucleic Acid Atoms
Solvent Atoms	177
Heterogen Atoms	68

Software

Software
Software Name	Purpose
ADSC	data collection
SOLVE	phasing
REFMAC	refinement
HKL-2000	data reduction
SCALA	data scaling