3F7G

Structure of the BIR domain from ML-IAP bound to a peptidomimetic

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5	298	SODIUM ACETATE, PEG 300, DTT, pH 5.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.44	49.64

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 84.016	α = 90
b = 84.016	β = 90
c = 94.476	γ = 120

Symmetry
Space Group	P 32

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	MAR scanner 345 mm plate		2002-11-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL7-1	1.08	SSRL	BL7-1

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	2.3	30	98.9	0.061	0.061	11.8	1.9	33128	32773		-3	40.6

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	2.3	2.38	98.3		0.431	0.431	1.9	1.9	3304

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	difference Fourier	THROUGHOUT	PDB entry 1OXN	2.3	20	31460	31130	1589	98.95	0.17	0.16916	0.16714	0.20877	RANDOM	33.954

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]
0.25	0.13		0.25		-0.38

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.828
r_dihedral_angle_3_deg	16.939
r_dihedral_angle_4_deg	15.757
r_dihedral_angle_1_deg	4.776
r_scangle_it	3.428
r_mcangle_it	3.387
r_scbond_it	2.384
r_mcbond_it	2.33
r_angle_other_deg	1.168
r_angle_refined_deg	1.065
r_mcbond_other	0.419
r_nbd_refined	0.197
r_nbd_other	0.189
r_nbtor_refined	0.185
r_symmetry_vdw_other	0.161
r_symmetry_hbond_refined	0.161
r_xyhbond_nbd_refined	0.141
r_nbtor_other	0.088
r_symmetry_vdw_refined	0.074
r_chiral_restr	0.063
r_bond_refined_d	0.008
r_gen_planes_refined	0.003
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3952
Nucleic Acid Atoms
Solvent Atoms	270
Heterogen Atoms	61

Software

Software
Software Name	Purpose
HKL-2000	data collection
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling