(A) Multiple alignment of avicin A precursor with precursors of closely related subclass IIa bacteriocins. Mun KS, precursor of mundticin KS; Mun L, precursor of mundticin L; Ent CRL35, precursor of enterocin CRL35; Sak X, precursor of sakacin X; Pis 126, precursor of piscolin 126; Sak P, precursor of sakacin P. The vertical arrow indicates a cleavage site where the leader peptide is removed from the mature peptide. The YYGNG motif is underlined. (B) Pairwise alignment of avicin B (Avc B) and divergicin A precursor (Dvn A). PS indicates the processing site for divergicin A.