Several additional nonapeptides (9-mers) containing the LLGLL motif were identified, all of which were observed in Hepacivirus C (hepatitis C virus; HCV) “NS5” RNA-dependent RNA polymerase and shared with 20 human proteins, which included “chordin protein” and “desmoglein 3 (pemphigus vulgaris antigen), isoform CRA_a”, among others. Here, DSG3 is linked to pemphigus vulgaris.