They can actually fully bind to a fully intact antigen in the same way that free floating antibodies bind onto fully intact antigens. So gamma delta T cells can bind to any antigen that is not bound to the MHC class one and MHC class two molecules found on other white blood cells. And what that implies is they do not depend on antigen presenting cells to actually carry out some type of immune defense response. So we see that gamma delta T cells bind to antigens that alphabeted T cells cannot actually bind to. And what that means is our gamma delta T cells do not contain the CD four and CD eight glycoproteins that are needed to actually bind onto the major histocompatibility complex, class one or class two. Now, let's move on to the location where we normally find our gamma delta T cells.