1ITL

HUMAN INTERLEUKIN 4: THE SOLUTION STRUCTURE OF A FOUR-HELIX-BUNDLE PROTEIN


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

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


  • 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 ca ...

    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.


    Related Citations: 
    • Secondary Structure and Topology of Human Interleukin 4 in Solution
      Redfield, C.,Smith, L.J.,Boyd, J.,Lawrence, G.M.P.,Edwards, R.G.,Smith, R.A.G.,Dobson, C.M.
      (1991) Biochemistry 30: 11029


    Organizational Affiliation

    Inorganic Chemistry Laboratory, University of Oxford, England.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
INTERLEUKIN-4
A
130Homo sapiensMutation(s): 0 
Gene Names: IL4
Find proteins for P05112 (Homo sapiens)
Go to Gene View: IL4
Go to UniProtKB:  P05112
Experimental Data & Validation

Experimental Data

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

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1993-04-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance