3IL8

CRYSTAL STRUCTURE OF INTERLEUKIN 8: SYMBIOSIS OF NMR AND CRYSTALLOGRAPHY

• PDB DOI: https://doi.org/10.2210/pdb3IL8/pdb

• Classification: CYTOKINE
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 1990-12-07 Released: 1992-10-15 
• Deposition Author(s): Baldwin, E.T., Weber, I.T., St Charles, R., Xuan, J.-C., Appella, E., Yamada, M., Matsushima, K., Edwards, B.F.P., Clore, G.M., Gronenborn, A.M., Wlodawer, A.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Observed: 0.187 

Literature

Crystal structure of interleukin 8: symbiosis of NMR and crystallography.

Baldwin, E.T., Weber, I.T., St Charles, R., Xuan, J.C., Appella, E., Yamada, M., Matsushima, K., Edwards, B.F., Clore, G.M., Gronenborn, A.M., Wlodawer, A.

(1991) Proc Natl Acad Sci U S A 88: 502-506

• PubMed: 1988949 
• DOI: https://doi.org/10.1073/pnas.88.2.502
• Primary Citation of Related Structures:  
  3IL8


• PubMed Abstract: 
  

  The crystal structure of a host defense system chemotactic factor, interleukin 8, has been solved by molecular replacement using as a model the solution structure derived from nuclear magnetic resonance experiments. The structure was refined with 2 A x-ray data to an R factor of 0.187 (0.217 at 1.6 A). A comparison indicates some potential differences between the structure in solution and in the crystalline state. Our analysis also predicts that residues 4 through 9 on the amino terminus and the beta-bend, which includes His-33, may be important for receptor binding.

---

Organizational Affiliation: 

Crystallography Laboratory, National Cancer Institute-Frederick Cancer Research and Development Center, MD 21702.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 8.4 kDa 
• Atom Count: 693 
• Modelled Residue Count: 68 
• Deposited Residue Count: 72 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
INTERLEUKIN-8	A	72	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P10145 (Homo sapiens) Explore P10145  Go to UniProtKB:  P10145
PHAROS:  P10145 GTEx:  ENSG00000169429

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Observed: 0.187 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 40.3	α = 90
b = 40.3	β = 90
c = 90.1	γ = 120

Software Package:

Software Name	Purpose
PROLSQ	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 1992-10-15 
Deposition Author(s): Baldwin, E.T., Weber, I.T., St Charles, R., Xuan, J.-C., Appella, E., Yamada, M., Matsushima, K., Edwards, B.F.P., Clore, G.M., Gronenborn, A.M., Wlodawer, A.

Revision History  

• Version 1.0: 1992-10-15
  Type: Initial release
  
• Version 1.1: 2008-03-25
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2012-02-29
  Changes: Database references
• Version 1.4: 2024-06-05
  Changes: Data collection, Database references, Other
• Version 1.5: 2024-10-30
  Changes: Structure summary