Characterization of folded conformations in a tetrapeptide containing two tryptophan residues by vibrational circular dichroism

Co-oligopeptides of aromatic amino acids

Co-oligopeptides of aromatic amino acids and glycine with a variable distance between the aromatic residues. V. pH-Dependent conformational changes in peptides containing two adjacent tryptophyl residues as evidenced by circular dichroism studies

✍ Vincenzo Rizzo; Pier Luigi Luisi 📂 Article 📅 1977 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 602 KB

## Abstract The influence of pH upon CD spectra of H‐Trp‐Trp‐OH, H‐Trp‐Trp‐Gly‐OH, and H‐Gly‐Trp‐Trp‐OH is investigated and data are compared with those obtained for peptides containing only one tryptophyl residue. A negative Cotton effect at around 225 nm, which in previous work has been related t