@article{mbs:/content/journal/jgv/10.1099/0022-1317-4-4-585, author = "Holtermann, O. A.", title = "Amino Acid Requirement for the Propagation of Vaccinia Virus in Earle’s L Cells", journal= "Journal of General Virology", year = "1969", volume = "4", number = "4", pages = "585-591", doi = "https://doi.org/10.1099/0022-1317-4-4-585", url = "https://www.microbiologyresearch.org/content/journal/jgv/10.1099/0022-1317-4-4-585", publisher = "Microbiology Society", issn = "1465-2099", type = "Journal Article", abstract = "Summary Using Earle’s L cells, the amino acid requirement for the propagation of vaccinia virus was found to coincide with the amino acids found by Eagle (Eagle, 1955; Eagle et al. 1956) to be essential for the L cells themselves. There was no evidence that vaccinia virus particles harbour enzymes involved in amino acid synthesis.", }