4oxc

Crystal structure of XIAP BIR1 domain

Method: X-RAY DIFFRACTION Dmax: 78.1 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

E3 ubiquitin-protein ligase XIAP

Homo sapiens

UniProt P98170

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 10–99 Fragment:BIR1 DOMAIN (UNP residues 10-99) ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:LIQUID DIFFUSION;pH 8.5;293 K;PEG 4000, Sodium Acetate Resolution 2.90 Å R-free 0.251
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 10–99 Fragment:BIR1 DOMAIN (UNP residues 10-99) ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:LIQUID DIFFUSION;pH 8.5;293 K;PEG 4000, Sodium Acetate Resolution 2.90 Å R-free 0.251
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 10–99 Fragment:BIR1 DOMAIN (UNP residues 10-99) ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:LIQUID DIFFUSION;pH 8.5;293 K;PEG 4000, Sodium Acetate Resolution 2.90 Å R-free 0.251
4 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain D; UniProt 10–99 Fragment:BIR1 DOMAIN (UNP residues 10-99) ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:LIQUID DIFFUSION;pH 8.5;293 K;PEG 4000, Sodium Acetate Resolution 2.90 Å R-free 0.251

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

73 other PDB entries and 141 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name XIAP_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 22–111; UniProt 10–99 Author chain B; PDBConstruct 22–111; UniProt 10–99 Author chain C; PDBConstruct 22–111; UniProt 10–99 Author chain D; PDBConstruct 22–111; UniProt 10–99

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 4oxc

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4oxc
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4oxc
Deposition date deposition_date2014-02-05
Structure title titleCrystal structure of XIAP BIR1 domain
Keywords keywordsXIAP, BIR, Zn finger, LIGASE; LIGASE
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier23.20
Radius of gyration Rg (electron density) rg_electron22.74
Forward intensity I(0) i022829200.00
Molecular weight molecular_weight34912.0 kDa
Excluded volume excluded_volume42932 ų
Envelope volume envelope_volume53699 ų
Hydration-shell volume shell_volume20341 ų
Envelope diameter envelope_diameter84.8
Shell Rg shell_rg28.94
Envelope Rg envelope_rg23.01
Shape Rg shape_rg22.75
Total Rg total_rg23.52
Total atoms total_atoms2454
Residues n_residues310
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax78.1
Rg (real space) rg_real23.21
Rg uncertainty (real space) rg_real_error0.58
I(0) (real space) i0_real2.2830e+07
I(0) uncertainty (real space) i0_real_error2.8370e+05
Rg (reciprocal space) rg_reciprocal23.21
I(0) (reciprocal space) i0_reciprocal22830000.0000
Solution quality estimate total_estimate0.8069
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary26.4
Skewness Skewness skewness0.307
Kurtosis Kurtosis kurtosis-0.442
Angular range angular_range— – 0.3400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha5100000.0000
Real-space data points n_real_points66
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.851; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.933; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id4oxcA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1170 — Inhibitor Of Apoptosis Protein (2mihbC-IAP-1); Chain A
Homologous superfamily homologous superfamily10 — Inhibitor Of Apoptosis Protein (2mihbC-IAP-1); Chain A
Domain ID domain_id4oxcB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1170 — Inhibitor Of Apoptosis Protein (2mihbC-IAP-1); Chain A
Homologous superfamily homologous superfamily10 — Inhibitor Of Apoptosis Protein (2mihbC-IAP-1); Chain A
Domain ID domain_id4oxcC00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1170 — Inhibitor Of Apoptosis Protein (2mihbC-IAP-1); Chain A
Homologous superfamily homologous superfamily10 — Inhibitor Of Apoptosis Protein (2mihbC-IAP-1); Chain A
Domain ID domain_id4oxcD00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1170 — Inhibitor Of Apoptosis Protein (2mihbC-IAP-1); Chain A
Homologous superfamily homologous superfamily10 — Inhibitor Of Apoptosis Protein (2mihbC-IAP-1); Chain A

8. Citations (1)

9. Files and Curves (10)