Conformational plasticity at the IgE-binding site of the B-cell receptor CD23

Balvinder Dhaliwal, Marie O Y Pang, Daopeng Yuan, Norhakim Yahya, Stella M. Fabiane, James M. McDonnell, Hannah J. Gould, Andrew J. Beavil, Brian J. Sutton

    Research output: Contribution to journalArticlepeer-review

    Abstract

    IgE antibodies play a central role in allergic disease. They recognize allergens via their Fab regions, whilst their effector functions are controlled through interactions of the Fc region with two principal cell surface receptors, Fce{open}RI and CD23. Crosslinking of Fce{open}RI-bound IgE on mast cells and basophils by allergen initiates an immediate inflammatory response, while the interaction of IgE with CD23 on B-cells regulates IgE production. We have determined the structures of the C-type lectin "head" domain of CD23 from seven crystal forms. The thirty-five independent structures reveal extensive conformational plasticity in two loops that are critical for IgE binding. © 2013 The Authors.
    Original languageEnglish
    Pages (from-to)693-697
    Number of pages4
    JournalMolecular immunology
    Volume56
    Issue number4
    DOIs
    Publication statusPublished - 31 Dec 2013

    Keywords

    • Allergy
    • Antibody-receptor interactions
    • Immunoglobulin E
    • Immunology
    • X-ray crystallography

    Fingerprint

    Dive into the research topics of 'Conformational plasticity at the IgE-binding site of the B-cell receptor CD23'. Together they form a unique fingerprint.

    Cite this