@article{mbs:/content/journal/jgv/10.1099/0022-1317-38-2-329, author = "Koenig, R. and Tremaine, J. H. and Shepard, J. F.", title = "In situ Degradation of the Protein Chain of Potato Virus X at the N- and C-termini", journal= "Journal of General Virology", year = "1978", volume = "38", number = "2", pages = "329-337", doi = "https://doi.org/10.1099/0022-1317-38-2-329", url = "https://www.microbiologyresearch.org/content/journal/jgv/10.1099/0022-1317-38-2-329", publisher = "Microbiology Society", issn = "1465-2099", type = "Journal Article", abstract = "SUMMARY The amino acid composition, behaviour in SDS-polyacrylamide gel electrophoresis and electrophoretic patterns of cyanogen bromide peptides were studied for the protein subunits of different preparations of potato virus X (PVX). The results indicate that the protein subunits of PVX can be partially degraded in the intact virus at the N-terminus by reducing agent-dependent proteases in crude plant sap and by trypsin, and at the C-terminus by reducing agent-independent proteases occurring in some virus preparations.", }