T-cell signalling is a dynamic process involving a large number of membrane and cytosolic proteins, involved in signal transduction. The regulatory mechanism in T-cell receptor signalling is well reviewed in 29789755.
Gaud G, Lesourne R, Love PE. Regulatory mechanisms in T cell receptor signalling. Nat Rev Immunol. 2018 Aug;18(8):485-497. doi: 10.1038/s41577-018-0020-8. PMID: 29789755.