1IRL

THE SOLUTION STRUCTURE OF THE F42A MUTANT OF HUMAN INTERLEUKIN 2


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

The solution structure of the F42A mutant of human interleukin 2.

Mott, H.R.Baines, B.S.Hall, R.M.Cooke, R.M.Driscoll, P.C.Weir, M.P.Campbell, I.D.

(1995) J.Mol.Biol. 247: 979-994

  • DOI: 10.1006/jmbi.1994.0194

  • PubMed Abstract: 
  • Interleukin 2 (IL-2) is one of the major cytokines produced by T lymphocytes in response to antigen. It is a potent growth and differentiation factor for several cell-types and is structurally related to the four-helix bundle family of cytokines. Mut ...

    Interleukin 2 (IL-2) is one of the major cytokines produced by T lymphocytes in response to antigen. It is a potent growth and differentiation factor for several cell-types and is structurally related to the four-helix bundle family of cytokines. Mutation of residue Phe42 to Ala abolishes binding to the alpha chain of the tri-partite IL-2 receptor. The three-dimensional structure of the F42A mutant IL-2 has been calculated by two dimensional NMR methods and compared to a structure of wild-type IL-2 determined by X-ray crystallography. The overall topology of the two structures is the same. The main differences between the structures are within the ill-defined loops connecting the helices and the region of the protein that is believed to interact with the alpha-chain of the receptor. Thus, the mutation of Phe42 to Ala does not perturb the overall three-dimensional structure of IL-2, and does not appear to change the putative binding sites for the beta and gamma chains of the receptor. The structural differences observed in this mutant suggest that the replacement of Phe42 with Ala causes the re-orientation of neighbouring side-chains that are also involved in binding the alpha-chain of the receptor.


    Organizational Affiliation

    Glaxo Research & Development Ltd., Medicines Research Centre, Stevenage, Hertfordshire, U.K.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
INTERLEUKIN-2
A
133Homo sapiensMutation(s): 1 
Gene Names: IL2
Find proteins for P60568 (Homo sapiens)
Go to Gene View: IL2
Go to UniProtKB:  P60568
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1995-12-07
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance