| abstract |
A protein or proteinaceous composition obtainable by cultivating bacteria cells in the presence of an inducer, such as an inducer of bacteriocin synthesis, and extracting and purifying the composition, is useful in detecting or killing the growth of virally infected or tumorigenic mammalian cells. The protein or proteinaceous composition may contain bacteriocin, or may be further purified to remove substantially all of the bacteriocin component. The proteinaceous composition substantially free of bacteriocin is able to kill tumorigenic cells. |