3g76

Crystal structure of XIAP-BIR3 in complex with a bivalent compound

Method: X-RAY DIFFRACTION Dmax: 116.7 Å Quality: GOOD

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

Baculoviral IAP repeat-containing protein 4

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 241–356 Fragment:BIR3 domain, UNP residues 241-356 ZN ZINC ION × 1 CZ3 1,1'-{hexa-2,4-diyne-1,6-diylbis[oxy{(2S,3R)-2-[(N-methyl-L-alanyl)amino]-1-oxobutane-3,1-diyl}(2S)pyrrolidine-1,2-diylmethanediyl]}bis[5-(phenylsulfanyl)-1H-tetrazole] × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 4.6;293 K;20% PEG MME 2000, 60mM sodium acetate tri-hydrate, 120mM Ammonium sulfate, 400mM sodium-potassium tartrate tetra-hydrate, pH 4.6, VAPOR DIFFUSION, temperature 293K Resolution 3.00 Å R-free 0.311
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 241–356 Fragment:BIR3 domain, UNP residues 241-356 ZN ZINC ION × 1 CZ3 1,1'-{hexa-2,4-diyne-1,6-diylbis[oxy{(2S,3R)-2-[(N-methyl-L-alanyl)amino]-1-oxobutane-3,1-diyl}(2S)pyrrolidine-1,2-diylmethanediyl]}bis[5-(phenylsulfanyl)-1H-tetrazole] × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 4.6;293 K;20% PEG MME 2000, 60mM sodium acetate tri-hydrate, 120mM Ammonium sulfate, 400mM sodium-potassium tartrate tetra-hydrate, pH 4.6, VAPOR DIFFUSION, temperature 293K Resolution 3.00 Å R-free 0.311
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 241–356 Fragment:BIR3 domain, UNP residues 241-356 ZN ZINC ION × 1 CZ3 1,1'-{hexa-2,4-diyne-1,6-diylbis[oxy{(2S,3R)-2-[(N-methyl-L-alanyl)amino]-1-oxobutane-3,1-diyl}(2S)pyrrolidine-1,2-diylmethanediyl]}bis[5-(phenylsulfanyl)-1H-tetrazole] × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 4.6;293 K;20% PEG MME 2000, 60mM sodium acetate tri-hydrate, 120mM Ammonium sulfate, 400mM sodium-potassium tartrate tetra-hydrate, pH 4.6, VAPOR DIFFUSION, temperature 293K Resolution 3.00 Å R-free 0.311
4 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain D; UniProt 241–356 Fragment:BIR3 domain, UNP residues 241-356 ZN ZINC ION × 1 CZ3 1,1'-{hexa-2,4-diyne-1,6-diylbis[oxy{(2S,3R)-2-[(N-methyl-L-alanyl)amino]-1-oxobutane-3,1-diyl}(2S)pyrrolidine-1,2-diylmethanediyl]}bis[5-(phenylsulfanyl)-1H-tetrazole] × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 4.6;293 K;20% PEG MME 2000, 60mM sodium acetate tri-hydrate, 120mM Ammonium sulfate, 400mM sodium-potassium tartrate tetra-hydrate, pH 4.6, VAPOR DIFFUSION, temperature 293K Resolution 3.00 Å R-free 0.311
5 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain E; UniProt 241–356 Fragment:BIR3 domain, UNP residues 241-356 ZN ZINC ION × 1 CZ3 1,1'-{hexa-2,4-diyne-1,6-diylbis[oxy{(2S,3R)-2-[(N-methyl-L-alanyl)amino]-1-oxobutane-3,1-diyl}(2S)pyrrolidine-1,2-diylmethanediyl]}bis[5-(phenylsulfanyl)-1H-tetrazole] × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 4.6;293 K;20% PEG MME 2000, 60mM sodium acetate tri-hydrate, 120mM Ammonium sulfate, 400mM sodium-potassium tartrate tetra-hydrate, pH 4.6, VAPOR DIFFUSION, temperature 293K Resolution 3.00 Å R-free 0.311
6 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain F; UniProt 241–356 Fragment:BIR3 domain, UNP residues 241-356 ZN ZINC ION × 1 CZ3 1,1'-{hexa-2,4-diyne-1,6-diylbis[oxy{(2S,3R)-2-[(N-methyl-L-alanyl)amino]-1-oxobutane-3,1-diyl}(2S)pyrrolidine-1,2-diylmethanediyl]}bis[5-(phenylsulfanyl)-1H-tetrazole] × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 4.6;293 K;20% PEG MME 2000, 60mM sodium acetate tri-hydrate, 120mM Ammonium sulfate, 400mM sodium-potassium tartrate tetra-hydrate, pH 4.6, VAPOR DIFFUSION, temperature 293K Resolution 3.00 Å R-free 0.311
7 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain G; UniProt 241–356 Fragment:BIR3 domain, UNP residues 241-356 ZN ZINC ION × 1 CZ3 1,1'-{hexa-2,4-diyne-1,6-diylbis[oxy{(2S,3R)-2-[(N-methyl-L-alanyl)amino]-1-oxobutane-3,1-diyl}(2S)pyrrolidine-1,2-diylmethanediyl]}bis[5-(phenylsulfanyl)-1H-tetrazole] × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 4.6;293 K;20% PEG MME 2000, 60mM sodium acetate tri-hydrate, 120mM Ammonium sulfate, 400mM sodium-potassium tartrate tetra-hydrate, pH 4.6, VAPOR DIFFUSION, temperature 293K Resolution 3.00 Å R-free 0.311
8 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain H; UniProt 241–356 Fragment:BIR3 domain, UNP residues 241-356 ZN ZINC ION × 1 CZ3 1,1'-{hexa-2,4-diyne-1,6-diylbis[oxy{(2S,3R)-2-[(N-methyl-L-alanyl)amino]-1-oxobutane-3,1-diyl}(2S)pyrrolidine-1,2-diylmethanediyl]}bis[5-(phenylsulfanyl)-1H-tetrazole] × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 4.6;293 K;20% PEG MME 2000, 60mM sodium acetate tri-hydrate, 120mM Ammonium sulfate, 400mM sodium-potassium tartrate tetra-hydrate, pH 4.6, VAPOR DIFFUSION, temperature 293K Resolution 3.00 Å R-free 0.311

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 137 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 1–116; UniProt 241–356 Author chain B; PDBConstruct 1–116; UniProt 241–356 Author chain C; PDBConstruct 1–116; UniProt 241–356 Author chain D; PDBConstruct 1–116; UniProt 241–356 Author chain E; PDBConstruct 1–116; UniProt 241–356 Author chain F; PDBConstruct 1–116; UniProt 241–356 Author chain G; PDBConstruct 1–116; UniProt 241–356 Author chain H; PDBConstruct 1–116; UniProt 241–356

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 3g76

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3g76
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3g76
Deposition date deposition_date2009-02-09
Structure title titleCrystal structure of XIAP-BIR3 in complex with a bivalent compound
Keywords keywords;Apoptosis, IAP, SmacDIABLO, peptidomimetics, pro-apoptotic drugs, Cytoplasm, Ligase, Metal-binding, Phosphoprotein, Polymorphism, Protease inhibitor, Thiol protease inhibitor, Ubl conjugation, Ubl conjugation pathway, Zinc, Zinc-finger ;; LIGASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier36.51
Radius of gyration Rg (electron density) rg_electron35.91
Forward intensity I(0) i0153276000.00
Molecular weight molecular_weight97634.0 kDa
Excluded volume excluded_volume120870 ų
Envelope volume envelope_volume168750 ų
Hydration-shell volume shell_volume38718 ų
Envelope diameter envelope_diameter119.3
Shell Rg shell_rg42.71
Envelope Rg envelope_rg35.14
Shape Rg shape_rg35.87
Total Rg total_rg36.50
Total atoms total_atoms6869
Residues n_residues802
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 dmax116.7
Rg (real space) rg_real36.50
Rg uncertainty (real space) rg_real_error1.05
I(0) (real space) i0_real1.5330e+08
I(0) uncertainty (real space) i0_real_error2.5190e+06
Rg (reciprocal space) rg_reciprocal36.52
I(0) (reciprocal space) i0_reciprocal153300000.0000
Solution quality estimate total_estimate0.8855
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary40.7
Skewness Skewness skewness0.221
Kurtosis Kurtosis kurtosis-0.595
Angular range angular_range— – 0.2150 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6719000.0000
Real-space data points n_real_points44
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.962; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.974; Smooth: 0.648

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 20 domains

SCOP 2.08 (12 domains)

Domain ID domain_idd3g76a_
Class classg — Small proteins
Fold Fold foldg.52 — Inhibitor of apoptosis (IAP) repeat
Superfamily Superfamily superfamilyg.52.1 — Inhibitor of apoptosis (IAP) repeat
Family Family familyg.52.1.1 — Inhibitor of apoptosis (IAP) repeat
Domain ID domain_idd3g76b1
Class classg — Small proteins
Fold Fold foldg.52 — Inhibitor of apoptosis (IAP) repeat
Superfamily Superfamily superfamilyg.52.1 — Inhibitor of apoptosis (IAP) repeat
Family Family familyg.52.1.1 — Inhibitor of apoptosis (IAP) repeat
Domain ID domain_idd3g76b2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd3g76c_
Class classg — Small proteins
Fold Fold foldg.52 — Inhibitor of apoptosis (IAP) repeat
Superfamily Superfamily superfamilyg.52.1 — Inhibitor of apoptosis (IAP) repeat
Family Family familyg.52.1.1 — Inhibitor of apoptosis (IAP) repeat
Domain ID domain_idd3g76d1
Class classg — Small proteins
Fold Fold foldg.52 — Inhibitor of apoptosis (IAP) repeat
Superfamily Superfamily superfamilyg.52.1 — Inhibitor of apoptosis (IAP) repeat
Family Family familyg.52.1.1 — Inhibitor of apoptosis (IAP) repeat
Domain ID domain_idd3g76d2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd3g76e_
Class classg — Small proteins
Fold Fold foldg.52 — Inhibitor of apoptosis (IAP) repeat
Superfamily Superfamily superfamilyg.52.1 — Inhibitor of apoptosis (IAP) repeat
Family Family familyg.52.1.1 — Inhibitor of apoptosis (IAP) repeat
Domain ID domain_idd3g76f1
Class classg — Small proteins
Fold Fold foldg.52 — Inhibitor of apoptosis (IAP) repeat
Superfamily Superfamily superfamilyg.52.1 — Inhibitor of apoptosis (IAP) repeat
Family Family familyg.52.1.1 — Inhibitor of apoptosis (IAP) repeat
Domain ID domain_idd3g76f2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd3g76g_
Class classg — Small proteins
Fold Fold foldg.52 — Inhibitor of apoptosis (IAP) repeat
Superfamily Superfamily superfamilyg.52.1 — Inhibitor of apoptosis (IAP) repeat
Family Family familyg.52.1.1 — Inhibitor of apoptosis (IAP) repeat
Domain ID domain_idd3g76h1
Class classg — Small proteins
Fold Fold foldg.52 — Inhibitor of apoptosis (IAP) repeat
Superfamily Superfamily superfamilyg.52.1 — Inhibitor of apoptosis (IAP) repeat
Family Family familyg.52.1.1 — Inhibitor of apoptosis (IAP) repeat
Domain ID domain_idd3g76h2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (8 domains)

Domain ID domain_id3g76A00
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_id3g76B00
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_id3g76C00
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_id3g76D00
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_id3g76E00
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_id3g76F00
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_id3g76G00
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_id3g76H00
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)