Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 

wwPDB Validation   3D Report Full Report

Currently 1ITL does not have a validation slider image.

This is version 1.3 of the entry. See complete history


Human interleukin 4. The solution structure of a four-helix bundle protein.

Smith, L.J.Redfield, C.Boyd, J.Lawrence, G.M.Edwards, R.G.Smith, R.A.Dobson, C.M.

(1992) J Mol Biol 224: 899-904

  • DOI: https://doi.org/10.1016/0022-2836(92)90457-u
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Heteronuclear 13C and 15N three-dimensional nuclear magnetic resonance (n.m.r.) techniques have been used to determine the solution structure of human interleukin 4, a four-helix bundle protein. A dynamical simulated annealing protocol was used to calculate an ensemble of structures from an n.m.r. data set of 1735 distance restraints, 101 phi angle restraints and 27 pairs of hydrogen bond restraints. The protein structure has a left-handed up-up-down-down topology for the four helices with the two long overhand loops in the structure being connected by a short section of irregular antiparallel beta-sheet. Analysis of the side-chains in the protein shows a clustering of hydrophobic residues, particularly leucines, in the core of the bundle with the side-chains of charged residues being located on the protein surface. The solution structure has been compared with a recent structure prediction for human interleukin 4 and with crystal structures of other helix bundle proteins.

  • Organizational Affiliation

    Inorganic Chemistry Laboratory, University of Oxford, England.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
INTERLEUKIN-4130Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P05112 (Homo sapiens)
Explore P05112 
Go to UniProtKB:  P05112
PHAROS:  P05112
GTEx:  ENSG00000113520 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP05112
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 

Structure Validation

View Full Validation Report

Currently 1ITL does not have a validation slider image.

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1993-04-15
    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