1OXN

Structure and Function Analysis of Peptide Antagonists of Melanoma Inhibitor of Apoptosis (ML-IAP)

X-RAY DIFFRACTION

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
2.99	58.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 82.77	α = 90
b = 82.77	β = 90
c = 93.17	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	CCD	ADSC QUANTUM 4	double crystal monochromator	2002-04-12	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	1.2822, 1.2834, 1.1921	SSRL	BL9-2

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	2.2	30	98.6	0.04	0.04	19.1	2	74935	73906			33.8

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	2.2	2.28	99.6		0.216	0.216	4.4	2	7395

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	2.2	20	37860	33874	1766	95.16	0.172	0.17202	0.16929	0.22502	RANDOM	36.119

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]
0.31	0.15		0.31		-0.46

RMS Deviations
Key	Refinement Restraint Deviation
r_scangle_it	5.761
r_mcangle_it	5.086
r_dihedral_angle_1_deg	4.858
r_scbond_it	3.817
r_mcbond_it	3.041
r_angle_refined_deg	1.024
r_nbd_refined	0.211
r_symmetry_vdw_refined	0.162
r_symmetry_hbond_refined	0.151
r_xyhbond_nbd_refined	0.138

RMS Deviations
Key	Refinement Restraint Deviation
r_scangle_it	5.761
r_mcangle_it	5.086
r_dihedral_angle_1_deg	4.858
r_scbond_it	3.817
r_mcbond_it	3.041
r_angle_refined_deg	1.024
r_nbd_refined	0.211
r_symmetry_vdw_refined	0.162
r_symmetry_hbond_refined	0.151
r_xyhbond_nbd_refined	0.138
r_chiral_restr	0.072
r_bond_refined_d	0.008
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3978
Nucleic Acid Atoms
Solvent Atoms	401
Heterogen Atoms	27

Software

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

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.