1qe6

INTERLEUKIN-8 WITH AN ADDED DISULFIDE BETWEEN RESIDUES 5 AND 33 (L5C/H33C)

Method: X-RAY DIFFRACTION Dmax: 80.2 Å Quality: GOOD

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

INTERLEUKIN-8 VARIANT

Homo sapiens

UniProt P10145

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 28–99 Chain B; UniProt 28–99 Mutation:L5C, H33C SO4 SULFATE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.2;292 K;NACL, AMMONIUM SULFATE, PEG 8000, pH 6.2, VAPOR DIFFUSION, HANGING DROP, temperature 19K Resolution 2.35 Å R-free 0.278
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 28–99 Chain D; UniProt 28–99 Mutation:L5C, H33C SO4 SULFATE ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.2;292 K;NACL, AMMONIUM SULFATE, PEG 8000, pH 6.2, VAPOR DIFFUSION, HANGING DROP, temperature 19K Resolution 2.35 Å R-free 0.278
3 Protein homooligomer Homooligomer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 28–99 Chain B; UniProt 28–99 Chain C; UniProt 28–99 Chain D; UniProt 28–99 Mutation:L5C, H33C SO4 SULFATE ION × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.2;292 K;NACL, AMMONIUM SULFATE, PEG 8000, pH 6.2, VAPOR DIFFUSION, HANGING DROP, temperature 19K Resolution 2.35 Å R-free 0.278

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.

21 other PDB entries and 21 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name IL8_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–72; UniProt 28–99 Author chain B; PDBConstruct 1–72; UniProt 28–99 Author chain C; PDBConstruct 1–72; UniProt 28–99 Author chain D; PDBConstruct 1–72; UniProt 28–99

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 1qe6

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1qe6
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1qe6
Deposition date deposition_date1999-07-13
Structure title titleINTERLEUKIN-8 WITH AN ADDED DISULFIDE BETWEEN RESIDUES 5 AND 33 (L5C/H33C)
Keywords keywordsINTERCRINE ALPHA FAMILY, IMMUNE SYSTEM; IMMUNE SYSTEM
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier24.16
Radius of gyration Rg (electron density) rg_electron23.49
Forward intensity I(0) i019137300.00
Molecular weight molecular_weight32650.0 kDa
Excluded volume excluded_volume40768 ų
Envelope volume envelope_volume52577 ų
Hydration-shell volume shell_volume19588 ų
Envelope diameter envelope_diameter83.8
Shell Rg shell_rg29.09
Envelope Rg envelope_rg23.33
Shape Rg shape_rg23.45
Total Rg total_rg24.35
Total atoms total_atoms2273
Residues n_residues278
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 dmax80.2
Rg (real space) rg_real24.30
Rg uncertainty (real space) rg_real_error0.61
I(0) (real space) i0_real1.9140e+07
I(0) uncertainty (real space) i0_real_error2.8810e+05
Rg (reciprocal space) rg_reciprocal24.27
I(0) (reciprocal space) i0_reciprocal19140000.0000
Solution quality estimate total_estimate0.8663
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary23.8
Skewness Skewness skewness0.449
Kurtosis Kurtosis kurtosis-0.448
Angular range angular_range— – 0.3300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3974000.0000
Real-space data points n_real_points65
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.809; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.859; Smooth: 0.972

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1qe6a_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.9 — IL8-like
Superfamily Superfamily superfamilyd.9.1 — Interleukin 8-like chemokines
Family Family familyd.9.1.1 — Interleukin 8-like chemokines
Domain ID domain_idd1qe6b_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.9 — IL8-like
Superfamily Superfamily superfamilyd.9.1 — Interleukin 8-like chemokines
Family Family familyd.9.1.1 — Interleukin 8-like chemokines
Domain ID domain_idd1qe6c_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.9 — IL8-like
Superfamily Superfamily superfamilyd.9.1 — Interleukin 8-like chemokines
Family Family familyd.9.1.1 — Interleukin 8-like chemokines
Domain ID domain_idd1qe6d_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.9 — IL8-like
Superfamily Superfamily superfamilyd.9.1 — Interleukin 8-like chemokines
Family Family familyd.9.1.1 — Interleukin 8-like chemokines

CATH v4.4 (4 domains)

Domain ID domain_id1qe6A00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily40
Domain ID domain_id1qe6B00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily40
Domain ID domain_id1qe6C00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily40
Domain ID domain_id1qe6D00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily40

8. Citations (3)

9. Files and Curves (10)