Streptococcus salivarius fimbriae are composed of a glycoprotein containing a repeated motif assembled into a filamentous nondissociable structure

Amino acid sequence analysis of purified fimbriae glycoprotein from Streptococcus salivarius reveals that the protein is filamentous in structure and the internal sequence is composed of a repeated motif of two amino acids alternating with two modified residues. Data indicate that the protein is resistant to dissociation.