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: 17395.83 
• Atom Count: 1168 
• Residue Count: 153 
• Unique protein chains: 1

1L2H

Crystal structure of Interleukin 1-beta F42W/W120F mutant

• DOI: 10.2210/pdb1L2H/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): 2 


• Deposited: 2002-02-21 Released: 2003-02-04 
• Deposition Author(s): Rudolph, M.G., Kelker, M.S., Schneider, T.R., Yeates, T.O., Oseroff, V., Heidary, D.K., Jennings, P.A., Wilson, I.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.54 Å
• R-Value Free: 0.193 
• R-Value Work: 0.154 

Literature

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.,Sect.D 59: 290-298

• PubMed: 12554939 


• 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.

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Organizational Affiliation: 

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

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): 2  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: 1.54 Å
• R-Value Free: 0.193 
• R-Value Work: 0.154 
• Space Group: P 4₃

Unit Cell:

Length (Å)	Angle (°)
a = 53.890	α = 90.00
b = 53.890	β = 90.00
c = 77.360	γ = 90.00

Software Package:

Software Name	Purpose
DENZO	data reduction
SHELXL-97	refinement
SOLVE	phasing
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2002-02-21 
• Released Date: 2003-02-04 
• Deposition Author(s): Rudolph, M.G., Kelker, M.S., Schneider, T.R., Yeates, T.O., Oseroff, V., Heidary, D.K., Jennings, P.A., Wilson, I.A.

Revision History 

• Version 1.0: 2003-02-04
  Type: Initial release
• Version 1.1: 2008-04-28
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance