1ROD

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


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

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 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 biolog ...

    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

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CHIMERIC PROTEIN OF INTERLEUKIN 8 AND HUMAN MELANOMA GROWTH STIMULATING ACTIVITY PROTEIN
A, B
72Homo sapiensMutation(s): 0 
Gene Names: CXCL8 (IL8)
Find proteins for P10145 (Homo sapiens)
Go to Gene View: CXCL8
Go to UniProtKB:  P10145
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 
  • Olderado: 1ROD Olderado
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORphasing
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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