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Immunol Lett. 2008 Mar 15;116(2):141-8. doi: 10.1016/j.imlet.2007.11.026. Epub 2008 Jan 7.

MAPPIT analysis of early Toll-like receptor signalling events.

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1
Department of Medical Protein Research, VIB, Ghent, Belgium.

Abstract

Toll-like receptor (TLR) signalling is initiated by the recruitment of one or more adaptor proteins to the activated receptor complex. At present, four of these proteins are identified, namely MyD88, Mal, Trif and Tram and their selective usage by different TLRs in part accounts for TLR-specific transcriptional responses. Recent findings described unique biochemical properties for each of these TIR-domain containing adaptors and revealed that these adapters are subjected to post-translational modification. We used mammalian protein-protein interaction trap (MAPPIT), a two-hybrid technique that functions in a mammalian cell context, to study the molecular interactions downstream of TLR activation. We demonstrate pathway walking from TLR4 to IRAK-1 and identified Mal as a bridging adaptor, linking MyD88 to the activated TLR4.

PMID:
18221795
DOI:
10.1016/j.imlet.2007.11.026
[Indexed for MEDLINE]
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