4EC4

XIAP-BIR3 in complex with a potent divalent Smac mimetic

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	30% PEG400, 0.2 M sodium citrate, 0.1 M Tris, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.26	62.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 65.42	α = 90
b = 130.49	β = 90
c = 215.73	γ = 90

Symmetry
Space Group	P 21 21 21

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 315r		2011-11-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.93340	ESRF	ID23-1

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	3.3	51.412	99.9	0.258	5	3.5	28624	28624

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	3.3		100		0.508	2.6	3.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 3CLX	3.3	51.412	28624	27126	1440	99.79	0.21313	0.21313	0.20979	0.27632	RANDOM	29.54

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]
2.54			-1.63		-0.91

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.246
r_dihedral_angle_3_deg	21.737
r_dihedral_angle_4_deg	13.364
r_dihedral_angle_1_deg	5.676
r_scangle_it	1.817
r_angle_refined_deg	1.283
r_scbond_it	1.077
r_mcangle_it	0.651
r_mcbond_it	0.332
r_chiral_restr	0.091
r_bond_refined_d	0.009
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8691
Nucleic Acid Atoms
Solvent Atoms	96
Heterogen Atoms	562

Software

Software
Software Name	Purpose
ADSC	data collection
MOLREP	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling