1HIB

THE STRUCTURE OF AN INTERLEUKIN-1 BETA MUTANT WITH REDUCED BIOACTIVITY SHOWS MULTIPLE SUBTLE CHANGES IN CONFORMATION THAT AFFECT PROTEIN-PROTEIN RECOGNITION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Work: 0.190 
  • R-Value Observed: 0.190 

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This is version 1.6 of the entry. See complete history


Literature

Structure of an interleukin-1 beta mutant with reduced bioactivity shows multiple subtle changes in conformation that affect protein-protein recognition.

Camacho, N.P.Smith, D.R.Goldman, A.Schneider, B.Green, D.Young, P.R.Berman, H.M.

(1993) Biochemistry 32: 8749-8757

  • DOI: 10.1021/bi00085a005
  • Primary Citation of Related Structures:  
    1HIB

  • PubMed Abstract: 
  • Site-specific mutagenesis was used to obtain the human interleukin-1 beta mutant protein with glycine substituted for threonine at position 9 (IL-1 beta Thr9Gly). The mutant maintains receptor binding but exhibits significantly reduced biological activity ...

    Site-specific mutagenesis was used to obtain the human interleukin-1 beta mutant protein with glycine substituted for threonine at position 9 (IL-1 beta Thr9Gly). The mutant maintains receptor binding but exhibits significantly reduced biological activity. The crystal structure of IL-1 beta Thr9Gly has been determined at 2.4-A resolution by molecular replacement techniques and refined to a crystallographic R-factor of 19.0%. IL-1 beta Thr9Gly crystallizes in a different space group (P6(5)22) than does native IL-1 beta (P4(3)); thus the molecules pack differently. Their overall structure is similar, nevertheless, with both composed of 153 amino acids which form 12 antiparallel beta-strands. However, significant conformational differences both close to and far from the site of the mutation may explain the mutant's altered properties.


    Organizational Affiliation

    Department of Chemistry, Rutgers University, New Brunswick, New Jersey 08903.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
INTERLEUKIN-1 BETAA153Homo sapiensMutation(s): 0 
Gene Names: IL1BIL1F2
Find proteins for P01584 (Homo sapiens)
Explore P01584 
Go to UniProtKB:  P01584
NIH Common Fund Data Resources
PHAROS:  P01584
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Work: 0.190 
  • R-Value Observed: 0.190 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 55.43α = 90
b = 55.43β = 90
c = 241.94γ = 120
Software Package:
Software NamePurpose
X-PLORmodel building
PROLSQrefinement
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1994-01-31
    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: 2011-11-16
    Changes: Atomic model
  • Version 1.4: 2017-11-29
    Changes: Derived calculations, Other
  • Version 1.5: 2019-07-17
    Changes: Data collection, Refinement description
  • Version 1.6: 2019-08-14
    Changes: Data collection, Refinement description