2I1B

CRYSTALLOGRAPHIC REFINEMENT OF INTERLEUKIN-1 BETA AT 2.0 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystallographic refinement of interleukin 1 beta at 2.0 A resolution.

Priestle, J.P.Schar, H.P.Grutter, M.G.

(1989) Proc.Natl.Acad.Sci.USA 86: 9667-9671


  • PubMed Abstract: 
  • The structure of human recombinant interleukin 1 beta (IL-1 beta) has been refined by a restrained least-squares method to a crystallographic R factor of 17.2% to 2.0 A resolution. One-hundred sixty-eight solvent molecules have been located, and isot ...

    The structure of human recombinant interleukin 1 beta (IL-1 beta) has been refined by a restrained least-squares method to a crystallographic R factor of 17.2% to 2.0 A resolution. One-hundred sixty-eight solvent molecules have been located, and isotropic temperature factors for each atom have been refined. The overall structure is composed of 12 beta-strands that can best be described as forming the four triangular faces of a tetrahedron with hydrogen bonding resembling normal antiparallel beta-sheets only at the vertices. The interior of this tetrahedron is filled by hydrophobic side chains. Analysis of sequence alignments with IL-1 beta from other mammalian species shows the interior to be very well conserved with the exterior residues markedly less so. There does not appear to be a clustering of invariant amino acid side chains on the surface of the molecule, suggesting an area of interaction with the IL-1 receptor. Comparison of the IL-1 beta structure with IL-1 alpha sequences indicates that IL-1 alpha probably has a similar overall folding as IL-1 beta but binds to the receptor in a different fashion. The three-dimensional structure of the IL-1 beta is analyzed in light of what has been suggested by previously published work on mutants and fragments of the molecule.


    Related Citations: 
    • The Three-Dimensional Structure of Interleukin-1Beta
      Priestle, J.P.,Schaer, H.-P.,Gruetter, M.G.
      (1988) Biochem.Soc.Trans. 16: 949
    • Crystallization and Preliminary X-Ray Difraction Studies of Recombinant Human Interleukin-1Beta
      Schaer, H.-P.,Priestle, J.P.,Gruetter, M.G.
      (1987) J.Biol.Chem. 262: 13724
    • Crystal Structure of the Cytokine Interleukin-1Beta
      Priestle, J.P.,Schaer, H.-P.,Gruetter, M.G.
      (1988) Embo J. 7: 339


    Organizational Affiliation

    Pharmaceuticals Research Division, CIBA-Geigy Ltd., Basel, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
INTERLEUKIN-1 BETA
A
153Homo sapiensMutation(s): 0 
Gene Names: IL1B (IL1F2)
Find proteins for P01584 (Homo sapiens)
Go to Gene View: IL1B
Go to UniProtKB:  P01584
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • Space Group: P 43
Unit Cell:
Length (Å)Angle (°)
a = 54.900α = 90.00
b = 54.900β = 90.00
c = 76.800γ = 90.00
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1990-04-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other