part_of part of part of bearer_of has characteristic has_quality has quality has quality derives_from cervical carcinoma Homo sapiens female uterine cervix HeLa epithelial cell derived cell line Homo sapiens cell line cervical carcinoma cell line HEp-2 Cells of this line contain HeLa marker chromosomes, and were derived via HeLa contamination. This line was originally thought to be derived from an epidermoid carcinoma of the larynx, but was subsequently found, based on isoenzyme analysis, HeLa marker chromosomes, and DNA fingerprinting, to have been established via HeLa cell contamination. The cells are positive for keratin by immunoperoxidase staining. ATCC confirmed this cell line is positive for the presence of human papilloma viral DNA sequences via PCR. http://www.utsouthwestern.edu/about-us/administrative-offices/technology-development/industry/human-cancer-cell-lines.html