T-Cell receptor - Is it a single type on a T cell or multiple types? (Jun/24/2010 )

Dear All,

Hoping to get some advise on T cell receptors. Does a single T cell express more than one type of T cell receptor? Thank you!

You may want to read this.

Viola A, Lanzavechhia A. T cell activation determined by T cell receptor number and tunable thresholds. Science 1996; 273:104-106.