Vaccinia virus proteins on the plasma membranes of infected cells. IV. Studies employing L cells infected with ultraviolet-irradiated vaccinia virions.

As measured by in vitro, 51Cr-release assays, the expression on plasma membranes of two, immediate-early, vaccinia virus-specified cell-surface antigens, with mol wt of 25K-27K and 16K-17K, could be directly correlated with the susceptibility of target cells to lysis by vaccinia virus-specific cytotoxic T cells.