FIG. 4.

Effects of the peptides analogous to the carboxyl-terminal segments of PRP1 (PRP-C [PQGPPPQGGRPQGPPQGQSPQ]) and statherin (STN-C [LYPQPYQPQYQQYTF]) on the binding of fimbriae to H- and L-PRG immobilized to HAP beads. Increasing concentrations of the peptides in KCl buffer were used as inhibitors for the binding of ¹²⁵I-labeled fimbriae (0.5 nmol) to HAP beads coated with salivary proteins: PRP1 (A), statherin (B), H-PRG (C), and L-PRG (D). All assays were performed in triplicate on three separate occasions. Data are expressed as means ± standard deviations.