Biological Assembly 1  

 3D View: Structure | Electron Density

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 17351.78 
• Atom Count: 1196 
• Residue Count: 153 
• Unique protein chains: 1

1HIB

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

• DOI: 10.2210/pdb1HIB/pdb

• Classification: CYTOKINE
• Organism(s): Homo sapiens


• Deposited: 1993-03-29 Released: 1994-01-31 
• Deposition Author(s): Camacho, N.P., Smith, D.R., Goldman, A., Schneider, B., Green, D., Young, P.R., Berman, H.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.4 Å
• R-Value Work: 0.190 

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

• PubMed: 8364024 


• 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. 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.

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Organizational Affiliation: 

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

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
INTERLEUKIN-1 BETA	A	153	Homo sapiens	Mutation(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: 2.4 Å
• R-Value Work: 0.190 
• Space Group: P 6₅ 2 2

Unit Cell:

Length (Å)	Angle (°)
a = 55.430	α = 90.00
b = 55.430	β = 90.00
c = 241.940	γ = 120.00

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing
PROLSQ	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1993-03-29 
• Released Date: 1994-01-31 
• Deposition Author(s): Camacho, N.P., Smith, D.R., Goldman, A., Schneider, B., Green, D., Young, P.R., Berman, H.M.

Revision History 

• Version 1.0: 1994-01-31
  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: 2011-11-16
  Type: Atomic model
• Version 1.4: 2017-11-29
  Type: Derived calculations, Other