4j3y

Crystal structure of XIAP-BIR2 domain

Method: X-RAY DIFFRACTION Dmax: 62.2 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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 152–236 Chain C; UniProt 152–236 Fragment:XIAP-BIR2 RESIDUES 152-236 Mutation:C202A, C213G ZN ZINC ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;292 K;1.7-1.9 M ammonium sulfate, 125 mM bis-tris propane, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 292K Resolution 1.45 Å R-free 0.203

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 144 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 2–86; UniProt 152–236 Author chain C; PDBConstruct 2–86; UniProt 152–236

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 4j3y

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4j3y
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4j3y
Deposition date deposition_date2013-02-06
Structure title titleCrystal structure of XIAP-BIR2 domain
Keywords keywordsIAP, XIAP, CASPASE, APOPTOSIS, APOPTOSIS INHIBITOR; APOPTOSIS
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier18.50
Radius of gyration Rg (electron density) rg_electron17.82
Forward intensity I(0) i06902780.00
Molecular weight molecular_weight18576.0 kDa
Excluded volume excluded_volume22863 ų
Envelope volume envelope_volume26840 ų
Hydration-shell volume shell_volume13353 ų
Envelope diameter envelope_diameter62.4
Shell Rg shell_rg22.75
Envelope Rg envelope_rg18.13
Shape Rg shape_rg17.87
Total Rg total_rg18.49
Total atoms total_atoms1307
Residues n_residues160
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 dmax62.2
Rg (real space) rg_real18.59
Rg uncertainty (real space) rg_real_error0.52
I(0) (real space) i0_real6.9030e+06
I(0) uncertainty (real space) i0_real_error8.9770e+04
Rg (reciprocal space) rg_reciprocal18.57
I(0) (reciprocal space) i0_reciprocal6903000.0000
Solution quality estimate total_estimate0.7843
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary17.9
Skewness Skewness skewness0.436
Kurtosis Kurtosis kurtosis-0.432
Angular range angular_range— – 0.4300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2310000.0000
Real-space data points n_real_points74
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.774; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.870; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id4j3yA00
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_id4j3yC00
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)