GO:0036398

A multi-protein complex containing at least the T-cell receptor complex and the LAT (linker for activation of T cells) scaffold protein. Also contains a variety of signaling proteins including co-receptors, kinases, phosphatases and adaptors such as CD8. Connects events on the plasma membrane to distal signaling cascades to ultimately modulate T cell biology. [GOC:krc, PMID:17534068, PMID:20107804, PMID:22426112]