Well, a CDAT cell contains that same AlphaBeta subunit, that same T cell receptor but it contains a different glycoprotein. It contains a CDA glycoprotein. And what the CDA glycoprotein does is it is able to bind to the major histocompatibility complex class one and not the class two one. Now, the class one MHC is the protein complex that is used by our wide blood cells to differentiate between healthy cells and infected cells of our bodies, our cells that have been infected by some type of viral or parasitic agent. So it turns out that CD eight T cells are those cells that help destroy the infected cells of our body. So once again, these T cells contain the CDA glycoprotein.