1IL6

HUMAN INTERLEUKIN-6, NMR, MINIMIZED AVERAGE STRUCTURE


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 75 
  • Conformers Submitted: 
  • Selection Criteria: LEAST RESTRAINT VIOLATION 

wwPDB Validation   3D Report Full Report

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This is version 1.3 of the entry. See complete history


Literature

Solution structure of recombinant human interleukin-6.

Xu, G.Y.Yu, H.A.Hong, J.Stahl, M.McDonagh, T.Kay, L.E.Cumming, D.A.

(1997) J Mol Biol 268: 468-481

  • DOI: 10.1006/jmbi.1997.0933
  • Primary Citation of Related Structures:  
    1IL6, 2IL6

  • PubMed Abstract: 
  • Interleukin-6 (IL-6) is a 185 amino acid cytokine which exerts multiple biological effects in vivo and whose dysregulation underlies several disease processes. The solution structure of recombinant human interleukin-6 has now been determined using heteronuclear three and four-dimensional NMR spectroscopy ...

    Interleukin-6 (IL-6) is a 185 amino acid cytokine which exerts multiple biological effects in vivo and whose dysregulation underlies several disease processes. The solution structure of recombinant human interleukin-6 has now been determined using heteronuclear three and four-dimensional NMR spectroscopy. The structure of the molecule was determined using 3044 distance and torsion restraints derived by NMR spectroscopy to generate an ensemble of 32 structures using a combined distance geometry/simulated annealing protocol. The protein contains five alpha-helices interspersed with variable-length loops; four of these helices constitute a classical four-helix bundle with the fifth helix located in the CD loop. There were no distance violations greater than 0.3 A in any of the final 32 structures and the ensemble has an average-to-the-mean backbone root-mean-square deviation of 0.50 A for the core four-helix bundle. Although the amino-terminal 19 amino acids are disordered in solution, the remainder of the molecule has a well defined structure that shares many features displayed by other long-chain four-helix bundle cytokines. The high-resolution NMR structure of hIL-6 is used to rationalize available mutagenesis data in terms of a heteromeric receptor complex.


    Related Citations: 
    • Complete 1H, 15N and 13C Assignments, Secondary Structure, and Topology of Recombinant Human Interleukin-6
      Xu, G.Y., Hong, J., Mcdonagh, T., Stahl, M., Kay, L.E., Seehra, J., Cumming, D.A.
      (1996) J Biomol NMR 8: 123

    Organizational Affiliation

    Small Molecule Drug Discovery, Genetics Institute, Cambridge, MA 02140, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
INTERLEUKIN-6A185Homo sapiensMutation(s): 0 
Gene Names: IL6IFNB2
UniProt & NIH Common Fund Data Resources
Find proteins for P05231 (Homo sapiens)
Explore P05231 
Go to UniProtKB:  P05231
PHAROS:  P05231
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP05231
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 75 
  • Conformers Submitted: 
  • Selection Criteria: LEAST RESTRAINT VIOLATION 

Structure Validation

View Full Validation Report

Currently 1IL6 does not have a validation slider image.



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1998-02-04
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-23
    Changes: Database references, Derived calculations, Other