Macromolecule Content

• Total Structure Weight: 16.31 kDa 
• Atom Count: 1136 
• Residue Count: 144 
• Unique protein chains: 1

1ROD

CHIMERIC PROTEIN OF INTERLEUKIN 8 AND HUMAN MELANOMA GROWTH STIMULATING ACTIVITY PROTEIN, NMR

• DOI: 10.2210/pdb1ROD/pdb

• Classification: CHEMOKINE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1995-11-24 Released: 1996-06-10 
• Deposition Author(s): Roesch, P., Sticht, H., Auer, M., Schmitt, B., Besemer, J., Horcher, M., Kirsch, T., Lindley, I.J.D.

---

Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Submitted: 8 

Literature

Structure and activity of a chimeric interleukin-8-melanoma-growth-stimulatory-activity protein.

Sticht, H., Auer, M., Schmitt, B., Besemer, J., Horcher, M., Kirsch, T., Lindley, I.J., Rosch, P.

(1996) Eur J Biochem 235: 26-35

• PubMed: 8631339 
• DOI: 10.1111/j.1432-1033.1996.00026.x
• Primary Citation of Related Structures:  
  1ROD


• PubMed Abstract: 
  

A 72-amino-acid chimeric protein, Chi1, was constructed from the N-terminal part of interleukin 8, IL-8-(1-53), and the C-terminal part of melanoma growth stimulatory activity, MGSA-(54-72). Chi1 protein showed receptor-binding specificity and biological activity similar, but not identical to IL-8 and decidedly different from MGSA. The structure of Chi1 was determined in solution by two-dimensional NMR and molecular-dynamics calculations. The structure resembled the structures of MGSA and IL-8 closely, containing a triple-stranded beta-sheet in the IL-8 part and an amphipathic alpha-helix in the MGSA part. Chi1 formed dimers at millimolar concentrations via the first strand from the N-terminus, analogous to IL-8 and MGSA. In contrast to the latter molecules, however, the alpha-helix of Chi1 did not pack against the beta-sheet part, but was an independent structural element. This structural difference could be explained mainly by the modulation of hydrophobic interactions between the helix and the rest of the protein in Chi1 as compared to IL-8 and MGSA. It is concluded that tight helix packing is not required for receptor binding and biological activity of Chi1.

---

Organizational Affiliation: 

Lehrstühl fur Biopolymere, Universität Bayreuth, Germany.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CHIMERIC PROTEIN OF INTERLEUKIN 8 AND HUMAN MELANOMA GROWTH STIMULATING ACTIVITY PROTEIN	A, B	72	Homo sapiens	Mutation(s): 0  Gene Names: POTENTIAL, CXCL8, IL8
Find proteins for P10145 (Homo sapiens) Explore P10145  Go to UniProtKB:  P10145
NIH Common Fund Data Resources
PHAROS:  P10145 GTEx:  ENSG00000169429

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Submitted: 8 
• OLDERADO: 1ROD Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1995-11-24 
• Released Date: 1996-06-10 
Deposition Author(s): Roesch, P., Sticht, H., Auer, M., Schmitt, B., Besemer, J., Horcher, M., Kirsch, T., Lindley, I.J.D.

Revision History 

• Version 1.0: 1996-06-10
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance