1840 sv40 (myco clean) cells are likely a cell line transformed with the SV40 virus and confirmed to be free of mycoplasma contamination. These cells can be used for various research applications, including studies of viral transformation, cell immortalization, and the effects of SV40 on cellular processes. The 'myco clean' designation indicates that the cells have been tested and found to be free of mycoplasma, a common cell culture contaminant., These cells are provided as a fraction of a 10 cm dish. They are typically cultured in a standard cell culture medium supplemented with serum and antibiotics.