T cells expressing receptors of different affinity for antigen ligands reveal a unique role for p59fyn in T cell development and optimal stimulation of T cells by antigen.

Abstract excerpt

Signaling from the TCR involves the protein tyrosine kinase p59fyn (Fyn). Previous studies have shown that T cell development occurs normally in Fyn-/- mice. In this study, we investigated the requirement for Fyn in the development and function of T cells expressing either the transgenic 2C TCR, with high affinity for its Ag ligand, or the transgenic H-Y TCR, representative of a low affinity TCR. Although Fyn was...

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