under these experimental conditions , polypeptides with molecular weights of 58k , 48k-50k , 42k , 36k-37k , 34k , 32k-33k , 27k-29k , and 16k-17k were expressed on the plasma membranes of vaccinia virus-infected cells but not uninfected cells .
C0007603
plasma membranes
C0007634
cells