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1ik0, 30 NMR models ()
Related: 1ijz
Resources: FirstGlance, OCA, RCSB, PDBsum
Coordinates: save as pdb, mmCIF, xml


Solution Structure of Human IL-13

Publication Abstract from PubMed

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.

Solution structure of human IL-13 and implication for receptor binding., Moy FJ, Diblasio E, Wilhelm J, Powers R, J Mol Biol. 2001 Jun 29;310(1):219-30. PMID:11419948

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.


[IL13_HUMAN] Defects in IL13 may be a cause of susceptibility to allergic rhinitis (ALRH) [MIM:607154]. Allergic rhinitis is a common disease of complex inheritance and is characterized by mucosal inflammation caused by allergen exposure.


[IL13_HUMAN] Cytokine. Inhibits inflammatory cytokine production. Synergizes with IL2 in regulating interferon-gamma synthesis. May be critical in regulating inflammatory and immune responses.

About this Structure

1ik0 is a 1 chain structure with sequence from Homo sapiens. Full experimental information is available from OCA.

See Also


  • Moy FJ, Diblasio E, Wilhelm J, Powers R. Solution structure of human IL-13 and implication for receptor binding. J Mol Biol. 2001 Jun 29;310(1):219-30. PMID:11419948 doi:10.1006/jmbi.2001.4764

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