alexa End-binding protein 1 controls signal propagation from the T cell receptor.
Genetics

Genetics

Single Cell Biology

Author(s): MartnCfreces NB, Baixauli F, Lpez MJ, Gil D, Monjas A, , MartnCfreces NB, Baixauli F, Lpez MJ, Gil D, Monjas A,

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Abstract The role of microtubules (MTs) in the control and dynamics of the immune synapse (IS) remains unresolved. Here, we show that T cell activation requires the growth of MTs mediated by the plus-end specific protein end-binding 1 (EB1). A direct interaction of the T cell receptor (TCR) complex with EB1 provides the molecular basis for EB1 activity promoting TCR encounter with signalling vesicles at the IS. EB1 knockdown alters TCR dynamics at the IS and prevents propagation of the TCR activation signal to LAT, thus inhibiting activation of PLCγ1 and its localization to the IS. These results identify a role for EB1 interaction with the TCR in controlling TCR sorting and its connection with the LAT/PLCγ1 signalosome.
This article was published in EMBO J and referenced in Single Cell Biology

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