Macromolecule Content

• Total Structure Weight: 15120.45 
• Atom Count: 1056 
• Residue Count: 130 
• Unique protein chains: 1

1ITM

ANALYSIS OF THE SOLUTION STRUCTURE OF HUMAN INTERLEUKIN 4 DETERMINED BY HETERONUCLEAR THREE-DIMENSIONAL NUCLEAR MAGNETIC RESONANCE TECHNIQUES

• DOI: 10.2210/pdb1ITM/pdb

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


• Deposited: 1994-02-28 Released: 1994-05-31 
• Deposition Author(s): Redfield, C., Smith, L.J., Boyd, J., Lawrence, G.M.P., Edwards, R.G., Gershater, C.J., Smith, R.A.G., Dobson, C.M.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Submitted: 1 

Literature

Analysis of the solution structure of human interleukin-4 determined by heteronuclear three-dimensional nuclear magnetic resonance techniques.

Redfield, C., Smith, L.J., Boyd, J., Lawrence, G.M., Edwards, R.G., Gershater, C.J., Smith, R.A., Dobson, C.M.

(1994) J.Mol.Biol. 238: 23-41

• PubMed: 8145254 
• DOI: 10.1006/jmbi.1994.1265


• PubMed Abstract: 
  

Human interleukin-4 (IL-4) is a member of the family of haemopoietic cytokines that modulate cell proliferation and differentiation within the immune system. It has a four-helix-bundle structure, and possesses a high degree of mobility in certain regions, notably in the two long loops running the length of the bundle in its up-up-down-down topology. Information from a variety of three-dimensional heteronuclear NMR experiments, including chemical shifts, coupling constants and NOE data, is analysed in terms of the solution structure of IL-4. In addition, structure calculations with and without specific restraints such as hydrogen bond location or torsion angle restrictions are compared in the light of the dynamic behaviour of the polypeptide chain. Particular emphasis is placed on defining the lengths and positions of secondary structure elements, and on the likely structural preferences within the less well ordered loop regions. The overall topology of IL-4 is compared with those defined in recent structure determinations of related proteins. This analysis is combined with recent mutagenesis data to propose a possible mode of interaction of IL-4 with its receptor.

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Related Citations: 

• Human Interleukin 4: The Solution Structure of a Four-Helix-Bundle Protein
  Smith, L.J.,Redfield, C.,Boyd, J.,Lawrence, G.M.P.,Edwards, R.G.,Smith, R.A.G.,Dobson, C.M.
  (1992) J.Mol.Biol. 224: 899
• Secondary Structure and Topology of Human Interleukin 4 in Solution
  Redfield, C.,Smith, L.J.,Boyd, J.,Lawrence, G.M.P.,Edwards, R.G.,Smith, R.A.G.,Dobson, C.M.
  (1991) Biochemistry 30: 11029




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Organizational Affiliation: 

Oxford Centre for Molecular Sciences, University of Oxford, UK.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
INTERLEUKIN-4	A	130	Homo sapiens	Mutation(s): 0  Gene Names: IL4
Find proteins for P05112 (Homo sapiens) Go to Gene View: IL4 Go to UniProtKB:  P05112

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Submitted: 1 

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1994-02-28 
• Released Date: 1994-05-31 
• Deposition Author(s): Redfield, C., Smith, L.J., Boyd, J., Lawrence, G.M.P., Edwards, R.G., Gershater, C.J., Smith, R.A.G., Dobson, C.M.

Revision History 

• Version 1.0: 1994-05-31
  Type: Initial release
• Version 1.1: 2008-03-24
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance