1OXQ

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

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1OXN	PDB ENTRY 1OXN

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
3.03	59.08

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 83.189	α = 90
b = 83.189	β = 90
c = 93.612	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	MARRESEARCH		2002-04-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 32-ID	1.2686	APS	32-ID

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	20	97.2	0.065	0.065	21.8	3.7	64496	62709			41.211

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	100		0.379	0.379	3.4	3.9	6453

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	FOURIER SYNTHESIS	THROUGHOUT	PDB ENTRY 1OXN	2.3	20	30570	29677	1528	97.08	0.1634	0.16345	0.16064	0.21827	copied from test set for 1OXN	40.259

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]
0.28	0.14		0.28		-0.42

RMS Deviations
Key	Refinement Restraint Deviation
r_scangle_it	6.082
r_mcangle_it	5.347
r_dihedral_angle_1_deg	4.976
r_scbond_it	3.994
r_mcbond_it	3.193
r_angle_refined_deg	1.073
r_nbd_refined	0.204
r_symmetry_vdw_refined	0.174
r_symmetry_hbond_refined	0.166
r_xyhbond_nbd_refined	0.142

RMS Deviations
Key	Refinement Restraint Deviation
r_scangle_it	6.082
r_mcangle_it	5.347
r_dihedral_angle_1_deg	4.976
r_scbond_it	3.994
r_mcbond_it	3.193
r_angle_refined_deg	1.073
r_nbd_refined	0.204
r_symmetry_vdw_refined	0.174
r_symmetry_hbond_refined	0.166
r_xyhbond_nbd_refined	0.142
r_chiral_restr	0.074
r_bond_refined_d	0.009
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3979
Nucleic Acid Atoms
Solvent Atoms	403
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.