Crystal structure of Interleukin 1-beta F42W/W120F mutant

Experimental Data Snapshot

  • Resolution: 1.54 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.154 

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Use of multiple anomalous dispersion to phase highly merohedrally twinned crystals of interleukin-1beta.

Rudolph, M.G.Kelker, M.S.Schneider, T.R.Yeates, T.O.Oseroff, V.Heidary, D.K.Jennings, P.A.Wilson, I.A.

(2003) Acta Crystallogr D Biol Crystallogr 59: 290-298

  • DOI: https://doi.org/10.1107/s0907444902021704
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The crystal structure at 1.54 A resolution of a double mutant of interleukin-1beta (F42W/W120F), a cytokine secreted by macrophages, was determined by multiple-wavelength anomalous dispersion (MAD) using data from highly twinned selenomethionine-modified crystals. The space group is P4(3), with unit-cell parameters a = b = 53.9, c = 77.4 A. Self-rotation function analysis and various intensity statistics revealed the presence of merohedral twinning in crystals of both the native (twinning fraction alpha approximately 0.35) and SeMet (alpha approximately 0.40) forms. Structure determination and refinement are discussed with emphasis on the possible reasons for successful phasing using untreated twinned MAD data.

  • Organizational Affiliation

    Department of Molecular Biology and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Interleukin 1-beta153Homo sapiensMutation(s): 2 
UniProt & NIH Common Fund Data Resources
Find proteins for P01584 (Homo sapiens)
Explore P01584 
Go to UniProtKB:  P01584
GTEx:  ENSG00000125538 
Entity Groups  
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UniProt GroupP01584
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.54 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.154 
  • Space Group: P 43
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 53.89α = 90
b = 53.89β = 90
c = 77.36γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-02-04
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2021-10-27
    Changes: Database references
  • Version 1.4: 2024-02-14
    Changes: Data collection