Insight into the basis of autonomous immunoreceptor activation

Richard Berry, Zhenjun Chen, James McCluskey, Jamie Rossjohn

Research output: Contribution to journalArticleResearchpeer-review

3 Citations (Scopus)


Expression of the pre-T cell receptor (pTCR) by immature thymocytes is crucial for T cell development. The pTCR comprises an invariant pre-Talpha chain that pairs with a newly rearranged TCRbeta chain and CD3 signaling components. Despite its similarity to the mature alphabetaTCR, which binds to specific peptide-loaded major histocompatibility molecules, the pTCR functions in a ligand-independent manner. Precisely how pTCR functions autonomously has remained a source of intense debate. Recently, the structure of the extracellular domain of the pTCR has been determined, providing insight into the mechanism of pTCR autonomous signaling. In this review, we reflect on the current understanding of pTCR function and draw comparisons to the mechanisms employed by the mature alphabetaTCR and the related pre-B cell receptor.
Original languageEnglish
Pages (from-to)165 - 170
Number of pages6
JournalTrends in Immunology
Issue number4
Publication statusPublished - 2011

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