Biological Assembly 1  

 3D View: Structure

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A2B1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 18.87 kDa 
• Atom Count: 1310 
• Residue Count: 161 
• Unique protein chains: 2

1ILP

CXCR-1 N-TERMINAL PEPTIDE BOUND TO INTERLEUKIN-8

• DOI: 10.2210/pdb1ILP/pdb

• Classification: CYTOKINE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli K-12
• Mutation(s): Yes 


• Deposited: 1998-12-16 Released: 1998-12-23 
• Deposition Author(s): Skelton, N.J., Quan, C., Lowman, H.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 40 
• Conformers Submitted: 20 
• Selection Criteria: LEAST RESTRAINT VIOLATION ENERGY 

Literature

Structure of a CXC chemokine-receptor fragment in complex with interleukin-8.

Skelton, N.J., Quan, C., Reilly, D., Lowman, H.

(1999) Structure 7: 157-168

• PubMed: 10368283 
• DOI: 10.1016/S0969-2126(99)80022-7
• Primary Citation of Related Structures:  
  1ILQ, 1ILP


• PubMed Abstract: 
  

Interactions between CXC chemokines (e.g. interleukin-8, IL-8) and their receptors (e.g. CXCR-1) have a key role in host defense and disease by attracting and upregulating neutrophils to sites of inflammation. The transmembrane nature of the receptor impedes structure-based understanding of ligand interactions. Linear peptides based on the N-terminal, extracellular portion of the receptor CXCR-1 do bind to IL-8, however, and inhibit the binding of IL-8 to the full-length receptor.

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Related Citations: 

• Peptide Based Inhibitors of Il-8: Structural Simplification and Improved Potency
  Attwood, M.R., al., et
  (1997) Bioorg Med Chem Lett 7: 429

• Three-Dimensional Structure of Il-8 in Solution
  Clore, G.M., Appella, E., Yamada, M., Gronenborn, A.M.
  (1990) Biochemistry 29: 1689

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Organizational Affiliation: 

Department of Protein Engineering Genentech, Inc. South San Francisco, CA 94080, USA. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Interleukin-8 (precursor)	A, B	72	Homo sapiens	Mutation(s): 0  Gene Names: CXCL8, IL8
Find proteins for P10145 (Homo sapiens) Explore P10145  Go to UniProtKB:  P10145
NIH Common Fund Data Resources
PHAROS:  P10145 GTEx:  ENSG00000169429

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
C-X-C chemokine receptor type 1	C	19	Homo sapiens	Mutation(s): 3  Gene Names: CXCR1, CMKAR1, IL8RA
Find proteins for P25024 (Homo sapiens) Explore P25024  Go to UniProtKB:  P25024
NIH Common Fund Data Resources
PHAROS:  P25024 GTEx:  ENSG00000163464

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 40 
• Conformers Submitted: 20 
• Selection Criteria: LEAST RESTRAINT VIOLATION ENERGY 
• OLDERADO: 1ILP Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1998-12-16 
• Released Date: 1998-12-23 
Deposition Author(s): Skelton, N.J., Quan, C., Lowman, H.

Revision History 

• Version 1.0: 1998-12-23
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 2.0: 2020-03-04
  Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Polymer sequence, Source and taxonomy, Structure summary