Fig. 5
From: Salivary proline-rich protein may reduce tannin-iron chelation: a systematic narrative review
Canon et al. [50], with permission: condensed tannin (white and brown) interaction with PRP peptide (green ribbon) during molecular dynamics run. Tannins associate with PRP molecules and attach to proline rich residues through hydrophobic bonds. On binding to PRPs, the multidendate nature of tannins allows for hydrophobic bond formation and conformational changes in the PRP molecule to stabilize the complex