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Updated: May 7, 2026

Dissecting Multi-protein Signaling Complexes by Bimolecular Complementation Affinity Purification BiCAP
Published on: June 15, 2018
CD46: the 'multitasker' of complement proteins
Hidekazu Yamamoto1, Antonella Francesca Fara, Prokar Dasgupta
1Division of Transplant Immunology and Mucosal Biology, MRC Centre for Transplantation, King's College London, Guy's Hospital, London SE1 9RT, UK; The Urology Centre, Guy's and St. Thomas' NHS Foundations Trust, London SE1 9RT, UK.
Abstract:
Complement is undeniably quintessential for innate immunity by detecting and eliminating infectious microorganisms. Recent work, however, highlights an equally profound impact of complement on the induction and regulation of a wide range of immune cells. In particular, the complement regulator CD46 emerges as a key sensor of immune activation and a vital modulator of adaptive immunity. In this review, we summarize the current knowledge of CD46-mediated signalling events and their functional consequences on immune-competent cells with a specific focus on those in CD4(+) T cells. We will also discuss the promises and challenges that potential therapeutic modulation of CD46 may hold and pose.
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