1IK0 image
Deposition Date 2001-05-01
Release Date 2002-05-01
Last Version Date 2024-11-20
Entry Detail
PDB ID:
1IK0
Keywords:
CYTOKINE
Title:
Solution Structure of Human IL-13
Biological Source:
Source Organism(s):
Homo sapiens (Taxon ID: 9606)
Expression System(s):
Escherichia coli bl21(de3)
Method Details:
Experimental Method:
SOLUTION NMR
Conformers Calculated:
100
Conformers Submitted:
30
Selection Criteria:
structures with acceptable covalent geometry, structures with favorable non-bond energy, structures with the least restraint violations, structures with the lowest energy
1IK0 validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:INTERLEUKIN-13
Gene (Uniprot):IL13
Chain IDs:A
Chain Length:113
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P35225 Pfam ID:PF03487
Ligand Molecules
NA
Primary Citation
Solution structure of human IL-13 and implication for receptor binding.
J.Mol.Biol. 310 219 230 (2001)
PMID: 11419948 DOI: 10.1006/jmbi.2001.4764

Abstact

Interleukin-13 has been implicated as a key factor in asthma, allergy, atopy and inflammatory response, establishing the protein as a valuable therapeutic target. The high-resolution solution structure of human IL-13 has been determined by multidimensional NMR. The resulting structure is consistent with previous short-chain left-handed four-helix bundles, where a significant similarity in the folding topology between IL-13 and IL-4 was observed. IL-13 shares a significant overlap in biological function with IL-4, a result of the common alpha chain component (IL-4Ralpha) in their respective receptors. Based on the available structural and mutational data, an IL-13/IL-4Ralpha model and a sequential mechanism for forming the signaling heterodimer is proposed for IL-13.

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Primary Citation of related structures
1IJZ
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